Toelatingsnummer 13696 N

BIOBAN(TM) GA 50 Antimicrobial  

 

13696 N

 

 

 

 

 

 

 

 

HET COLLEGE VOOR DE TOELATING VAN

GEWASBESCHERMINGSMIDDELEN EN BIOCIDEN

 

1 TOELATING

 

Gelet op de aanvraag d.d. 13 december 2010 (20110116 TBR) van

 

DOW Benelux B.V.

Herbert H. Dowweg 5

4542 NM  HOEK

 

 

 

tot verkrijging van een toelating als bedoeld in artikel 49, eerste lid, Wet gewasbeschermingsmiddelen en biociden voor de biocide, op basis van de werkzame stof(fen) glutaaraldehyde,

 

BIOBAN(TM) GA 50 Antimicrobial

 

gelet op artikel 121, eerste lid, jo. artikel 44, eerste lid, Wet gewasbeschermingsmiddelen en biociden,

 

BESLUIT HET COLLEGE als volgt:

 

1.1  Toelating

1.      Het middel BIOBAN(TM) GA 50 Antimicrobial is toegelaten voor de in bijlage I genoemde toepassingen onder nummer 13696 N met ingang van datum dezes. Voor de gronden van dit besluit wordt verwezen naar bijlage II bij dit besluit.

 

2.      De toelating geldt tot 1 juni 2022.

 

1.2  Samenstelling, vorm en verpakking

De toelating geldt uitsluitend voor het middel in de samenstelling, vorm en de verpakking als waarvoor de toelating is verleend.

 

1.3  Gebruik

Het middel mag slechts worden gebruikt met inachtneming van hetgeen in bijlage I onder A bij dit besluit is voorgeschreven.

 

1.4 Classificatie en etikettering

 

Gelet op artikel 50, eerste lid, sub d, Wet gewasbeschermingsmiddelen en biociden,

 

1.    De aanduidingen, welke ingevolge artikelen 9.2.3.1 en 9.2.3.2 van de Wet milieubeheer en artikelen 14, 15a, 15b, 15c en 15d van de Nadere regels verpakking en aanduiding milieugevaarlijke stoffen en preparaten op de verpakking moeten worden vermeld, worden hierbij vastgesteld als volgt:

 

aard van het preparaat: Met water mengbaar concentraat

 

werkzame stof:

gehalte:

glutaaraldehyde

50 %

 

 

 

letterlijk en zonder enige aanvulling:

 

andere zeer giftige, giftige, bijtende of schadelijke stof(fen):  

-

PICTOGRAM(MEN)

 

GHS05

 

GHS06

 

GHS08

 

GHS09

 

 

SIGNAALWOORD

 

Gevaar

 

 

GEVARENAANDUIDINGEN

 

H301               Giftig bij inslikken.

H314               Veroorzaakt ernstige brandwonden.

H317               Kan een allergische huidreactie veroorzaken.

H331               Giftig bij inademing.

H334               Kan bij inademing allergie- of astmasymptomen of ademhalingsmoeilijkheden veroorzaken.

H335               Kan irritatie van de luchtwegen veroorzaken.

H400               Zeer giftig voor in het water levende organismen.

 

 

VOORZORGSMAATREGELEN

 

P260               Stof/rook/gas/nevel/damp/spuitnevel niet inademen.

P273               Voorkom lozing in het milieu.

P280               Beschermende handschoenen/beschermende kleding/oogbescherming/gelaatsbescherming dragen.

P285               Bij ontoereikende ventilatie een geschikte adembescherming dragen.

P301 + P330 + P331+ P310 NA INSLIKKEN: de mond spoelen – GEEN braken opwekken. Onmiddellijk een ANTIGIFCENTRUM of een arts raadplegen.

P303 + P361 + P353 + P310 BIJ CONTACT MET DE HUID (of het haar): verontreinigde kleding onmiddellijk uittrekken – huid met water afspoelen/afdouchen. Onmiddellijk een ANTIGIFCENTRUM of een arts raadplegen.

P305 + P351 + P338 + P310 BIJ CONTACT MET DE OGEN: voorzichtig afspoelen met water gedurende een aantal minuten; contactlenzen verwijderen, indien mogelijk. Blijven spoelen.

                        Onmiddellijk een ANTIGIFCENTRUM of een arts raadplegen.

 

  1. Behalve de onder 1. bedoelde en de overige bij de Wet Milieugevaarlijke Stoffen en Nadere regels verpakking en aanduiding milieugevaarlijke stoffen en preparaten voorge­schreven aanduidingen en vermeldingen moeten op de verpakking voorkomen:

 

    1. letterlijk en zonder enige aanvulling:
      het wettelijk gebruiksvoorschrift
      De tekst van het wettelijk gebruiksvoorschrift is opgenomen in Bijlage I, onder A.

 

    1. hetzij letterlijk, hetzij naar zakelijke inhoud:
      de gebruiksaanwijzing
      De tekst van de gebruiksaanwijzing is opgenomen in Bijlage I, onder B.
      De tekst mag worden aangevuld met technische aanwijzingen voor een goede bestrijding mits deze niet met die tekst in strijd zijn
      .

 

    1. De vervaldatum (12 maanden na de productiedatum BIOBAN GA 50 Antimicrobial) dient op het etiket te worden vermeld.

 

 

 

 

2 DETAILS VAN DE AANVRAAG

 

Het betreft een aanvraag tot verkrijging van een toelating van het middel BIOBAN(TM) GA 50 Antimicrobial (13696 N), een middel op basis van de werkzame stof glutaaraldehyde.

 

De aanvrager heeft een adequaat aanvraagdossier ingediend. Het Ctgb is in de beoordeling uitgegaan van de wetenschappelijk gezien beste eindpunten

 

Bij gebruik volgens het Wettelijk Gebruiksvoorschrift/Gebruiksaanwijzing is het middel BIOBAN(TM) GA 50 Antimicrobial op basis van de werkzame stof(fen) glutaaraldehyde voldoende werkzaam en heeft het geen schadelijke uitwerking op de gezondheid van de mens en het milieu (artikel 49, Wet gewasbeschermingsmiddelen en biociden).

 


 

Degene wiens belang rechtstreeks bij dit besluit is betrokken kan gelet op artikel 119, eerste lid, Wet gewasbeschermingsmiddelen en biociden en artikel 7:1, eerste lid, van de Algemene wet bestuursrecht, binnen zes weken na de dag waarop dit besluit bekend is gemaakt een bezwaarschrift indienen bij: het College voor de toelating van gewasbeschermingsmiddelen en biociden (Ctgb), Postbus 217, 6700 AE WAGENINGEN. Het Ctgb heeft niet de mogelijkheid van het elektronisch indienen van een bezwaarschrift opengesteld.

 

 

Wageningen, 11 mei 2012

 

 

HET COLLEGE VOOR DE TOELATING VAN  GEWASBESCHERMINGSMIDDELEN EN  BIOCIDEN,





ir. J.F. de Leeuw

Voorzitter

 



 

HET COLLEGE VOOR DE TOELATING VAN GEWASBESCHERMINGSMIDDELEN EN BIOCIDEN

 

BIJLAGE I bij het besluit d.d. 11 mei 2012 tot toelating van het middel BIOBAN(TM) GA 50 Antimicrobial, toelatingnummer 13696 N

 

 

 

A.

WETTELIJK GEBRUIKSVOORSCHRIFT

 

Toegestaan is uitsluitend het gebruik als conserveermiddel in verpakking of opslagvat voor het bacterie- en schimmelbestendig maken van de volgende industriële producten op waterbasis: wasverzachters, hechtmiddelen, latex en slurries gebruikt in de papierindustrie en in verven.

 

De doseringen, inwerktijden en het gebruik van het middel zoals aangegeven in de gebruiksaanwijzing moeten worden aangehouden.

 

Het middel is uitsluitend bestemd voor professioneel gebruik.

 

B.

GEBRUIKSAANWIJZING

 

Conserveermiddel van producten op waterbasis (wasverzachters, hechtmiddelen, latex en slurries)

 

Het middel wordt aan het product toegevoegd in één enkele dosis tijdens productie met behulp van geautomatiseerde doseringssystemen. Het middel dient zodanig aan het vloeibare eindproduct te worden toegediend dat een goede menging ontstaat.

 

Raadpleeg de fabrikant voor het vaststellen van de optimale dosering voor de verschillende te conserveren producten.

 

Dosering: 0,02-0,2% BIOBAN GA 50 Antimicrobial op basis van het watergehalte in het te conserveren product.

 

Voorbeeld: in het geval dat een middel 80% water bevat, komt een dosering van 0,02% overeen met 1,6 g BIOBAN GA 50 Antimicrobial in 10 kg eindproduct.

 

 

 


 

HET COLLEGE VOOR DE TOELATING VAN GEWASBESCHERMINGSMIDDELEN EN BIOCIDEN

 

BIJLAGE II bij het besluit d.d. 11 mei 2012 tot toelating van het middel BIOBAN(TM) GA 50 Antimicrobial, toelatingnummer 13696 N

 

 

Contents                                                                                                                              Page

1      Introduction. 3

2      Identity. 3

3     Physical and chemical properties. 6

4     Efficacy. 7

5     Human toxicology. 10

6     Environment 17

7     Conclusion. 21

8     Classification and labelling. 22

9     References. 23

 

 

 

 

 

 

 


1                  Introduction

Alcodes Wipes, BIOBAN GA 50

This assessment concerns the biocidal products based on the active substances ethanol and glutaraldehyde. These applications have been submitted under the differentiated enforcement policy of biocides.

 

The assessment  includes the following products:

Product

Applicant

PT

Application number

Alcodes Wipes1

Ecolab B.V.

2, 4

20110076 TBR

BIOBAN GA 50 Antimicrobial2

DOW Benelux B.V.

3, 4, 6

20110116 TBR

1Based on ethanol and glutaraldehyde as active substances

2Based on glutaraldehyde as an active substance

 

The active substance ethanol has been notified for product types 1, 2 and 4. The active substance glutaraldehyde has been notified for product types 1-4, 6, 11 and 12. The active substances have not been placed on annex 1 of Directive 98/8/EC yet.

 

2                  Identity

 

2.1            Ethanol

 

2.1.1      Identity of the active substance

 

2.1.1.1  Ethanol

 

General

Active substance (ISO Common Name)

Ethanol (non-ISO)

Name in Dutch

Ethanol

 

Identity

Chemical name (IUPAC)

Ethanol

Chemical name (CA)

Ethanol

CAS No

64-17-5

EC No

200-578-6

Other substance No.

-

Molecular formula

C2H6O

Molecular mass

46.07

Structural formula

 

CH3-CH2-OH

 

The active substance is not yet included in annex I of Directive 98/8/EC.

A CAR of the active substance is available (RMS Greece, PT 1, 2, 4, first draft July 2007).

 

 

 

2.1.2      Physical and chemical properties of the active substance

 

2.1.2.1  Ethanol

 

Physical and chemical properties relevant to the risk assessment

Appearance

Colourless clear liquid

Surface tension

21.82 - 21.97 mN/m

Vapour pressure (Pa)

5726 Pa at 19.6 °C

5903 Pa at 25 °C

Henry’s law constant (Pa m3 mol -1)

0.57 Pa x m3/mol

Solubility in water (g/L or mg/L)

1000 g/L at 25 °C (ethanol is indefinitely miscible with water

Partition coefficient (log POW)

0.31

Dissociation constant

No dissociation within an environmentally relevant pH range.

UV/VIS absorption (max.) (if absorption > 290 nm state e at wavelength)

No UV maximum >290 nm

 

Hazard identification for classification and labelling

Flammability

Flashpoint: Highly flammable

Flammability: N/A

Auto-flammability: 363°C

Oxidising properties

Not oxidising

Explosive properties

Not explosive

 

2.1.3      Analytical methods for the technical active substance

Adequate analytical methodology is available to determine the content of active substance and significant and/or relevant impurities in the technical active substance.

 

2.1.4      Overall conclusions active substance

The identity, physical and chemical properties and analytical methods of the active substance are sufficiently described.

 

2.2            Glutaraldehyde

 

2.2.1      Identity of the active substance

 

2.2.1.1  Glutaraldehyde

 

General

Active substance (ISO Common Name)

Glutaric aldehyde (non-ISO)

Glutaraldehyde (non-ISO)

Name in Dutch

Glutaaraldehyde

 

Identity

Chemical name (IUPAC)

1,5-pentanedial

Chemical name (CA)

Glutaraldehyde

CAS No

111-30-8

EC No

2032-856-5 (EINECS)

Other substance No.

-

Molecular formula

C5H8O2

Molecular mass

100.11

Structural formula

 

 

The active substance glutaric aldehyde is not yet included in annex I of Directive 98/8/EC.

A CAR of the active substance is not yet available.

 

Glutaric aldehyde is not produced in pure form, but always as a 50% technical concentrate. At higher concentrations, the substance may polymerise.

 

2.2.2        Physical and chemical properties of the active substance

Glutaraldehyde

Physical and chemical properties relevant to the risk assessment

Appearance

Clear, colourless liquid (50%TK)

Surface tension

Not surface active

Vapour pressure (Pa)

44 Pa at 20 °C (50%TK)

Henry’s law constant (Pa m3 mol -1)

0.0586 Pa.m3mol-1

Solubility in water (g/L or mg/L)

Readily soluble (> 250g/L)

Partition coefficient (log POW)

-0.3324 (independent on pH)

Dissociation constant

No dissociation within an environmentally relevant pH range.

UV/VIS absorption (max.) (if absorption > 290 nm state e at wavelength)

No significant absorption above 290nm

 

Hazard identification for classification and labelling

Flammability

Flashpoint: > 60 °C

Flammability: N/A

Auto-flammability: 395 °C

Oxidising properties

Not oxidising (TK)

Explosive properties

Not explosive (TK)

 

2.2.3      Analytical methods for the technical active substance

Adequate analytical methodology is available to determine the content of active substance and significant and/or relevant impurities in the technical active substance.

 

2.2.4      Overall conclusions active substance

The identity, physical and chemical properties and analytical methods of the active substance are sufficiently described.

 

 

3                  Physical and chemical properties

 

3.1            Alcodes Wipes

 

3.1.1      Identity of the biocidal poduct

Name

Alcodes Wipes

Content active substance

Ethanol 76.8%

Glutaric aldehyde 0.02%

Formulation type

XX (other)

Packaging

HDPE bucket with 500 or 1000 towels

 

3.1.2      Physical and chemical properties of the biocidal product

Appearance

Wet, non-woven, blue wipes, alcohol like odour

Explosive properties

Not explosive

Oxidising properties

Not oxidising

Auto-flammability

< 400 °C

Flashpoint or Flammability

FP: 17 °C

pH 1% solution

Neat: 7.16

1%: 6.31

Relative density

0.849 (T not stated)

Storage stability/ Shelf life

5 months in HDPE

Physical and chemical compatibility

Not applicable

Viscosity

Not applicable

Surface tension

Not applicable

 

3.1.3      Analytical methods for detection and identification

 

3.1.3.1  Analytical methods for analysis of the biocidal product

Preparation (principle of method)

Pharmacopoeia method (GC-FID.

Glutaric aldehyde: GC

 

3.1.3.2  Residue analytical methods

Adequate residue analytical methodology is available to monitor residues of the biocide taking into account all possible exposure scenarios and the toxicity of the active substance(s).

 

3.1.4      Overall conclusions biocidal product

The identity, the physical and chemical properties and the analytical methods of the biocidal product are sufficiently described.

 

3.2  BIOBAN GA 50 Antimicrobial

 

3.2.1        Identity of the biocidal poduct

Name

BIOBAN GA 50 Antimicrobial

Content active substance

50% pure a.s.

Formulation type

SL

Packaging

25 kg pails (HDPE)

210 kg drums (HDPE)

1040 KG IBC (HDPE)

 

3.2.2        Physical and chemical properties of the biocidal product

Appearance

Clear, colourless liquid

Explosive properties

Not explosive

Oxidising properties

Not oxidising

Auto-flammability

Not self-igniting

Flashpoint

FP > 60 °C

pH 1% solution

4.3 (1%)

Acidity: 0.08% as H2SO4

Neat pH 3 - 4.

Relative density

1.066 at 20 °C

Storage stability/ Shelf life

12 months

Technical characteristics

Based on the composition and intended use of the product, data is not considered required.

Physical and chemical compatibility

Avoid contact with oxidisers and amines, strong bases and acids.

Product is not intended for mixing with other products.

Viscosity

Not applicable

Surface tension

Not applicable

 

3.2.3      Analytical methods for detection and identification

 

3.2.3.1  Analytical methods for analysis of the biocidal product

Preparation (principle of method)

 HPLC-UV

 

3.2.3.2  Residue analytical methods

Adequate residue analytical methodology is available to monitor residues of the biocide taking into account all possible exposure scenarios and the toxicity of the active substance(s).

 

3.2.4      Overall conclusions biocidal product

The identity, the physical and chemical properties and the analytical methods of the biocidal product are sufficiently described.

 

4                  Efficacy

 

4.1            Alcodes Wipes

Function

Alcodes Wipes is a disinfectant (PT02 and PT04) based on ethanol (642 g/L; 76.8%) and glutaraldehyde (0.17 g/L; 0.02%).

Alcodes Wipes are soaked wipes and therefore ready-to-use.

 

Field of use envisaged

The proposed field of use of Alcodes Wipes is the control of bacteria (excluding bacterial spores), yeasts and fungi on surfaces :

-                In the cosmetic and pharmaceutical industry;

-                The production, storage, and consumption area of food, feed and drinks.

These uses are included in PT02 and PT04.

The product is intended for professional use only. 

 

Effects on target organisms and efficacy

The available information was sufficient to evaluate the efficacy of Alcodes Wipes, considering that the authorisation is done under article 121 of the WGB. Several studies testing efficacy were provided for Alcodes Wipes, some were considered to be suitable and acceptable.

Quantitative suspension tests, quantitative surface tests and a simulated use test with mechanical action following standard procedures have been done with the required test organisms, the required interfering substance for soiling and the required test temperature. The tests demonstrated efficacy against bacteria (exclusive bacterial spores and mycobacteria) and yeasts at the use concentration (i.e.3,8 ml / wipe of standard version wipes and 7 ml / wipe of maxi-version wipes) and a contact time of 1 minute. This complies with the intended use as specified on the WG/GA.

No acceptable efficacy test with fungi was provided, therefore the fungal claim has to be removed from the WG/GA.

 

Evaluation of the WG/GA

The applicant has provided a Dutch WG/GA. This has been adapted to our standards. For both versions of wipes, a separate WG/GA is available. Mycobacteria have to be excluded from the bacterial claim as these organisms have not been tested in efficacy tests. For fungi, efficacy was not proven. Therefore, the fungal claim has to be removed from the WG/GA.

 

Mode of action

Ethanol exhibits an unspecific mechanism of effect. It affects the outer cell membrane causing alteration of membrane fluidity and leakage, enters the cytoplasm and destroys the inner structure of the cell molecules and of the cytoplasm's proteins. This process (referred to as denaturation) and the enzymes' coagulation leads to a loss of cellular activity resulting in the cell's death. Ethanol rapidly inactivates the target micro-organisms without time delay due to the unspecific mode of action (topical disinfectant).

 

The main target of aldehydes is the cell surface including the cell wall and cell membrane. The cell is fixed by unspecific oxidising chemical reactions between the aldehyde molecule and surface proteins but also chemical reactions with nucleic acids can be observed. Aldehydes fix the cell structure and cell metabolism and functions are blocked.

 

Resistance

The following information was provided by the applicant. Resistances for Ethanol are not reported. As Ethanol is not specific for just one cellular target but interferes with membrane integrity and denatures proteins, the development of true resistances is not to be expected. Specific resistances against glutaraldehyde have not yet been reported if the substance is used in an adequate dosage and in an adequate way: Efficacy investigations using Standard test procedures such as European Standards (EN phase-2-tests) lead to application conditions in practice where micro-organisms are not able to survive. However, disinfectant application solutions must be bio degradable by environmental organisms e.g. in waste water, where they are diluted to a suitable concentration. That's why a critical application concentration must be applied which is usually obtained as a result of the above mentioned Standard test procedures. If the substance is therefore used under adequate application conditions (application concentration, contact time, one day shelf life of the used solution, adequate treatment of disinfection equipment) microbial resistance / tolerance against Glutaraldehyde have not been observed.

Considering that the authorisation is done under article 121 of the WGB this is acceptable.

 

Conclusions

Based on the data submitted and considering that the evaluation is done under article 121 of the WGB, it can be concluded that Alcodes Wipes, when used in accordance with the proposed label (WG/GA), is effective in controlling bacteria (excluding bacterial spores and mycobacteria) and yeasts on surfaces in

-                the cosmetic and pharmaceutical industry;

-                the production, storage, and consumption area of food, feed and drinks.

 

4.2            Bioban GA 50 Antimicrobial

Function

BIOBAN (TM) GA 50 Antimicrobial is a disinfectant (PT03 and PT04) and a preservative (PT06, PT11 and PT13) based on Glutaraldehyde (50% w/w).

 

 

Field of use envisaged

The proposed field of use of BIOBAN (TM) GA 50 Antimicrobial is

  • the control of bacteria and viruses in animal housing and caging (PT03);
  • the control of bacteria and viruses on footwear of workers and on animals hoofs (PT03);
  • the control of bacteria and viruses on hatching eggs (PT03);
  • the control of bacteria and fungi on surfaces in places where food is processed and stored (PT04);
  • the control of bacteria and fungi on vessels and machinery used for food processing (PT04);
  • in-can preservative of the following water based products: fabric softeners, slurries, adhesives and latexes & paints, by the control of deteriorating bacteria and fungi (PT06);
  • preservation of water used as a solvent for extraction of sugar from sugar beets by the control of deteriorating bacteria (PT11);
  • preservation of metal working fluids by the control of deteriorating bacteria and fungi in (PT13).

These uses are included in PT03, PT04, PT06, PT11 and PT13. The product is intended for professional use only.

 

Effects on target organisms and efficacy

Several studies testing efficacy were provided for BIOBAN (TM) GA 50 Antimicrobial, some were considered suitable and acceptable. Quantitative suspension and surface tests following EN standard procedures have been done with the required standard organisms, the required interfering substance for soiling and the required test temperature. The tests demonstrated efficacy against bacteria (exclusive bacterial spores and mycobacteria) at a concentration of 0,40% w/w of Bioban™ GA 50 (which is a 50% glutaraldehyde solution in water) at a contact time of 30 minutes. This is in accordance with the proposed label (WG/GA). For the intended uses as basic requirement efficacy against bacteria and yeasts is set. However, no tests with yeasts are provided with the required soiling circumstances for PT04 and with the required test temperature for PT 03. Therefore the basic requirements of bactericidal and yeasticidal efficacy are not satisfied for the PT03 and PT04 applications as disinfectant in animal housing and caging, as disinfectant of footwear of workers, as disinfectant on hatching eggs, and as disinfectant in places where food is processed and stored and on vessels and food processing industry. These uses have to be removed from the WG/GA. For the intended use of hoof disinfection a bactericidal claim is sufficient, however no efficacy has been demonstrated at the required contact time of maximum 5 minutes. Therefore, this use has also to be removed from the WG/GA.

 

Evaluation of the WG/GA

The applicant has provided a Dutch WG/GA. This has been adapted to our standards.

The following uses have to be removed:

  • as disinfectant in animal housing and caging and on footwear of workers, as no efficacy against yeasts has been demonstrated at the required test temperature;
  • as disinfectant of animal hoofs, as no efficacy against bacteria has been demonstrated at the required contact time;
  • as disinfectant on hatching eggs, as no efficacy against yeast has been demonstrated at the required contact time and the required soiling conditions;
  • as disinfectant on surfaces in places where food is processed and stored, and on vessels and machinery used for food processing, as no efficacy against yeast has been demonstrated.
  • preservation of water used as a solvent for extraction of sugar from sugar beets by the control of deteriorating bacteria (PT11), as the applicant decided to withdraw this claim.
  • preservation of metal working fluids by the control of deteriorating bacteria and fungi in (PT13), as the applicant decided to withdraw this claim.

 

Mode of action

Glutaraldehyde, the active ingredient in BIOBAN ™ GA 50 Antimicrobial, reacts with primary amines located in the cell wall of the micro-organisms.  The reaction is known as cross-linking. These crossed-linked microbial cells can not transport nutrients or perform any critical metabolic functions. Glutaraldehyde also deactivates various membrane-bound enzymes. As a consequence of these actions, the micro-organisms die. In viruses, the main targets for Glutaraldehyde are nucleic acid, proteins and envelope constituents. The established reactivity of Glutaraldehyde with proteins suggests that the viral capsid or viral-specific enzymes are vulnerable to Glutaraldehyde treatment.

 

Resistance

The applicant has stated that no development of resistance is known or has been reported after several decades of use.

Considering that the authorisation is done under article 121 of the WGB this is acceptable.

 

Conclusions

Considering that the evaluation is done under article 121 of the WGB and that the product has already been on the market for some time, it can be concluded that BIOBAN (TM) GA 50 Antimicrobial, when used in accordance with the proposed label (WG/GA), may be expected to be effective as

  • in-can preservative of the following water based products: fabric softeners, slurries, adhesives and latexes & paints, by the control of deteriorating bacteria and fungi (PT06).

 

The following uses of BIOBAN (TM) GA 50 Antimicrobial have to be removed from the WG/GA, as the applicant decided to withdraw these claims:

  • preservation of water used as a solvent for extraction of sugar from sugar beets by the control of deteriorating bacteria (PT11);
  • preservation of metal working fluids by the control of deteriorating bacteria and fungi in (PT13).

 

The following uses of BIOBAN (TM) GA 50 Antimicrobial have to be removed from the WG/GA as no efficacy data are provided to substantiate the claim:

  • the control of bacteria and viruses in animal housing and caging (PT03);
  • the control of bacteria and viruses on footwear of workers and on animals hoofs (PT03);
  • the control of bacteria and viruses on hatching eggs (PT03);
  • the control of bacteria and fungi on surfaces in places where food is processed and stored (PT04);
  • the control of bacteria and fungi on vessels and machinery used for food processing (PT04).

 

 

5                  Human toxicology

 

5.1  Human health effects assessment active substance

Glutaraldehyde

Glutaraldehyde is an existing active substance, not included in Annex I of 98/8/EG. An application for inclusion is submitted, for which Finland is the Reporting Member State. This assessment is based on the physical chemical and toxicological data as published by the Pest Management Regulatory Agency (PMRA) from Canada on glutaraldehyde (September 2007), the Reregistration Eligibility Decision (RED) report on glutaraldehyde (September 2007), published by the US Environmental  Protection Agency (US EPA). In addition data from the draft CAR (April 2011) are used where data from the other documents showed inconsistencies.

 

When glutaraldehyde is applied dermally a large proportion of the dose retains in the skin. Dermal absorption has set at 10% based on a weight of evidence approach (draft CAR). Absorbed glutaraldehyde is rapidly eliminated, mainly via urine.

Oral LD50 values reported for glutaraldehyde vary between 66 and 733 mg/kg bw. The LD50 for dermal toxicity > 1000 mg/kg bw (draft CAR). Glutaraldehyde is toxic via the inhalation route (LC50 > 0.28-0.35 mg/L). Glutaraldehyde is corrosive and a skin sensitizer.

Several subchronic oral, dermal and inhalation toxicity studies were conducted with glutaraldehyde. The critical effects reported were related to irritation/degeneration of tissues at the entrance site. Similar findings were reported in chronic studies (oral and inhalation). There was no evidence of carcinogenicity in rats or mice.

In vitro and in vivo studies investigating the genotoxic properties of glutaraldehyde showed effects in in vitro studies, but generally not in in vivo studies. It is, however, unlikely that glutaraldehyde has genotoxic properties (opinion of SCF 119th meeting, 1999).

No developmental or reproductive toxicity was reported at and below maternally toxic doses.

 

Local effects

Due to its corrosive properties, glutaraldehyde produces local effects after a single exposure (skin and eye irritation) and repeated exposure (GI-tract irritation), therefore local acceptable exposure levels (AELlocal) will be determined.

 

AELlocal dermal

From the human volunteer- and occupational studies an NOEL of 0.2% glutaraldehyde was derived. For the risk assessment an AELlocal dermal of 0.2% (without additional assessment factors) will be used.

 

AELlocal inhalation

The Dutch Expert Committee on Occupational Standards recommends a health-based occupational exposure limit (HBR-OEL) for glutaraldehyde in the air of 0.4 mg/m3 as a ceiling value (for 15 minutes), based on the sensory irritation, especially of the eyes, nose and throat. Furthermore, because human data indicate that the frequency of exposure is of relevance in the occurrence of sensory irritation effects, the committee warrants an HBR-OEL of 0.08 mg/m3 as an eight-hour time-weighted average concentration (8-h TWA) (Health Council of the Netherlands, October 1993). For the risk assessment an AELlocal inhalation of 0.08 mg/m3 will be used.

 

Data requirements active substance

No additional data requirements are identified.

 

Ethanol

Ethanol is an existing active substance, not included in Annex I of Directive 98/8/EC. This assessment is based on the LoE submitted by the applicant, but also on public data from previous evaluations made at Ctgb for ethanol. A draft CA-report is not yet available.

For 2-Ethanol a EPA RED (1995) and a DECOS evaluation (2006) are available.

 

List of Endpoints

In previous evaluations no threshold values are set to be used for the risk assessment. Threshold values were not required based on the representative use.

 

At the request of the Minister of Social Affairs and Employment, the Health Council of the Netherlands sets health-based recommended occupational exposure limits for chemicals in air at the workplace in 2006. These recommendations are made by the Council’s Dutch Expert Committee on Occupational Standards (DECOS).

Epidemiological studies suggest that consumption levels below 10-12 grams of ethanol per day, will probably not cause liver cirrhosis. However, the Committee on Alcohol consumption

and reproduction concluded that at these consumption levels effects on fertility and development have been reported. Even long term oral exposure to levels of 1-12 gram ethanol per day might result in effects on the development (like increased incidence of spontaneous abortion, foetal death, pre-term delivery and decreased length of gestation) and fertility, according to the Committee on Alcohol consumption and reproduction. Considering the fact that the maximal alcohol concentration in blood after one (oral) drink is approximately 10-100 times higher than the ethanol concentration in blood after inhalatory exposure to1300 mg/m3, the committee was of the opinion that a HBC-OCRV (Health based calculated occupational cancer risk value) of 1300 mg/m3 is low enough to protect against these effects. Other toxic effect manifest after exposure to higher exposure levels. DECOS calculates an HBC-OCRV of 1300 mg/m3, resulting in a breast cancer risk of 4 additional death cases per 1000 (4*10-3) deaths for 40 years.

In addition, DECOS recommends a short term exposure limit (STEL) of 1900 mg/m3 twa 15 minutes and a skin notation. As dermal exposure can substantially contribute to the body burden of ethanol, DECOS recommends a skin notation.

In the report was described that as a worst case estimate, a penetration rate of 0.7 mg/cm2/h can be used to calculate the internal dose after dermal exposure. From the available meta-analysis and pooled studies, the committee concluded that drinking of one glass of alcoholic beverage per day the internal intake will be 10 gram ethanol.

 

Data requirements active substance

No additional data requirements are identified.

 

5.2            Human exposure assessment active substance

 

5.2.1      General aspects

Alcodes Wipes are ready-to-use soaked wipes and contain ethanol (642 g/L) and glutaraldehyde (0.17 g/L) as active substances. The proposed fields of use are:

PT2:    Surface disinfection in the food- and beverage industry

PT4:    Surface disinfection in the cosmetic and pharmaceutical industry

 

BIOBAN™GA 50 Antimicrobial is a liquid an contains 50% glutaraldehyde. After evaluation by the aspect Efficacy, the remaining field of use is:

PT6: In-can preservation of fabric softeners, slurries, adhesives and latexes & paints

 

5.2.2      Identification of main paths of professional exposure towards active substance from its use in biocidal product

An assessment of uses and exposure scenarios was made for the products. A summary of the evaluated uses is given in Table T.1 below. For Bioban GA 50, the intended uses PT3, 4, 11 and PT13 were not included in this evaluation as insufficient data on Efficacy were available to substantiate claims for these product types, and several uses were withdrawn by the applicant.

 

Table T.1       Summary of uses

 

Concentration a.s. in product

Use concentration

PT

Application method

Frequency

Potential secondary exposure

Alcodes Wipes

Ethanol 642 g/l (76.80%)

Glutaraldehyde 0.17  g/l (0.02%)

Ethanol 642 g/l (76.80%)

Glutaraldehyde 0.17  g/l (0.02%)

21

Soaked wipe, surface disinfection, rubbing surface (0.5-0.9 m2)

1-8 times per day

co-workers

Ethanol 642 g/l (76.80%)

Glutaraldehyde 0.17  g/l (0.02%)

Ethanol 642 g/l (76.80%)

Glutaraldehyde 0.17  g/l (0.02%)

41

Soaked wipe, surface disinfection, rubbing surface (0.5-0.9 m2)

1-8 times per day

co-workers

BIOBAN™GA 50 Antimicrobial2

Glutaraldehyde 50%

Glutaraldehyde 0.01-0.1%

61

Automatic dosing

1-7 applications per week

Consumers: contact with treated materials, e.g. hand washing, dishwashing, contact with painted surfaces, or contact with paper.

1Professional use

2 For Bioban GA 50, the intended uses PT3, 4, 11  and PT13 were not included in this evaluation as product types were withdrawn or insufficient data on Efficacy were available to substantiate claims for these product types

 

Ethanol

Dermal exposure of professionals to ethanol will be possible during use of the Alcodes Wipes, during surface wiping, with a concentration of 76.80% ethanol.

Respiratory exposure to ethanol during surface wiping cannot be excluded.

 

Glutaraldehyde

Dermal exposure of professionals to glutaraldehyde will be possible during mixing and loading or during wiping of surfaces.

Two scenarios will be considered as a worst-case:

-          Mixing and loading of with BIOBAN™GA 50 Antimicrobial. For mixing and loading a 50% concentration is considered.

-          Wiping of surfaces with Alcodes Wipes with a concentration of 0.02% glutaraldehyde.

 

Inhalation exposure to glutaraldehyde cannot be excluded based on the vapour pressure of glutaraldehyde[1]. The same scenarios as for dermal exposure will be considered as a worst-case. As all products are used by trained professionals, oral exposure is considered negligible.

 

5.2.3        Identification of main paths of non-professional exposure towards active substance from its use in biocidal product

The formulations are for professional use.

 

5.2.4        Indirect exposure as a result of use of the active substance in biocidal product

Exposure scenario’s for secondary exposure are:

-          Co-worker dermal contact with treated surfaces (76.80% ethanol and 0.02% glutaraldehyde) In the food- and beverage industry and in the cosmetic and pharmaceutical industry, after use of Alcodes Wipes, dermal contact with treated surfaces. It can be assumed that dermal contact longer than a few seconds with the recently cleaned and wet surfaces by co-workers is not to be expected.

-          BIOBAN GA 50 Antimicrobial is used to control bacterial and fungal infestation of water based products such as detergents & laundry additives, building materials (such as concrete adhesives & adhesives), latex & paints, paper additives (such as mineral slurries), printing inks and wipes.  Consumer dermal exposure might occur during hand washing, dishwashing, contact with painted surfaces, or contact with paper. Both adults and children may exposed dermally to the products. The maximum concentration in the products is 0.1%. In addition, for children concomitant oral exposure via hand-mouth contact may be possible.

 

Secondary inhalation exposure to ethanol and glutaraldehyde are also considered, due to the vapour pressure of both substances.

 

Since glutaraldehyde is a highly reactive compound, the substance will rapidly degrade at the site of first contact with organic matter. Therefore, accumulation of glutaraldehyde is not expected after repeated exposure use of the products.

 

5.3            Human health effects assessment product

 

5.3.1      Toxicity of the formulated product

Alcodes Wipes

No studies with Alcodes Wipes have been submitted and the classification and labelling of the formulation has been prepared based on the calculation method described in Annex II of Directive 1999/45/EC.

The formulation Alcodes Wipes does not need to be classified for acute oral, dermal and inhalation toxicity.

The formulation Alcodes Wipes does not need to be classified for skin and eye irritation, and skin sensitization.

 

BIOBAN GA 50 Antimicrobial

No studies with BIOBAN GA 50 Antimicrobial have been submitted and the classification and labelling of the formulation has been prepared based on the calculation method described in Annex I of CLP.

 

The formulation BIOBAN GA 50 Antimicrobial is classified with H301 ‘Toxic if swallowed’ and H331 ‘Toxic if inhaled’.

The formulation BIOBAN GA 50 Antimicrobial is classified with H314 ‘Causes severe skin burns and eye damage’.

The formulation BIOBAN GA 50 Antimicrobial is classified with H317 May cause and allergic skin reaction’, and H334 ‘May cause allergy or asthma symptoms or breathing difficulties if inhaled’. 

BIOBAN GA 50 Antimicrobial is classified with H335 ‘May cause respiratory irritation’.

 

5.3.2      Data requirements formulated product

No additional data requirements are identified.

 

5.4            Risk characterisation for human health

 

5.4.1      Professional users

Ethanol

Dermal exposure of professionals to ethanol will be possible during use of the Alcodes Wipes, during surface wiping, with a concentration of 76.80% ethanol. In addition, respiratory exposure cannot be excluded, based on the vapour pressure of ethanol.

 

For a product based on 84% ethanol, meant for hygienic hand disinfection, a safe use was calculated (for dermal and respiratory exposure of professionals in hospitals). It was assumed that 108 ml of this product was rubbed into the dry hands as a worst-case scenario. It was concluded that there was no additional risk for human health when compared to the intake by drinking one alcoholic consumption and/or the use of cosmetics as lotions and perfume.

Considering the concentration of ethanol in Alcodes Wipes (76.80%), and based on the anticipated exposure through wiping or foam spraying compared to already authorized products based on ethanol, unacceptable health effects for the professional user through use of Alcodes Wipes are not to be expected.

 

Glutaraldehyde

Considering standard hygienic procedures in professional settings, oral exposure to Glutaraldehyde can be excluded.

 

The AELlocal is set at 0.2% Glutaraldehyde.

The concentration of the active substance in Alcodes Wipes is 0.02%. Therefore, no adverse health effects are to be expected after dermal exposure to glutaraldehyde after use of Alcodes Wipes. The inhalation exposure is calculated using the TNsG model 1 for manual surface disinfection and wiping surfaces.

A respiratory exposure of 0.046 mg/m3 is calculated, based on 10 minutes application per day. Considering the HBR-OEL for glutaraldehyde of 0.4 mg/m3 as a ceiling value (for 15 minutes), a safe use is considered for the exposure to glutaraldehyde during the application of Alcodes Wipes.

 

BIOBAN™GA 50 Antimicrobial is added to the system via an automated dosing system, therefore the professional user could be inhalatory and dermally exposed to 50% glutaraldehyde during (un)connecting the automated dosing system. In accordance to Table 3.2 of Regulation (EC) 1272/2008 formulations with ≥50% glutaraldehyde should be classified with H301 ‘Toxic if swallowed’, H331 ‘Toxic if inhaled’ and H314 ‘Causes severe skin burns and eye damage’. Therefore, the professional user should wear suitable gloves, protective clothing and eye/face protection.

During connecting/disconnecting the exposure period will be very short, therefore inhalatory exposure is expected to be very low and will not exceed the AELlocal inhalation. Furthermore, chemical industries have to comply to the Dutch “Arbeidsomstandighedenregeling”, which ensures that the unprotected worker is not exposed to air concentrations glutaraldehyde exceeding the eight-hour time-weighted average concentration (HBR-OEL of 0.08 mg/m3; Health Council of the Netherlands, October 1993).

Considering standard hygienic procedures in professional settings, oral exposure to Glutaraldehyde can be excluded.

 

On the basis of the above considerations, it can be concluded that the risk after exposure to Alcodes Wipes for the unprotected professional user is acceptable.

 

On the basis of the above considerations, it can be concluded that the risk after exposure to BIOBAN™GA 50 Antimicrobial for the protected (suitable gloves, protective clothing and eye/face protection) professional user is acceptable.

 

5.4.2        Non-professional users, including the general public

The formulations are for professional use.

 

5.4.3        Indirect exposure as a result of use

In the food- and beverage industry and in the cosmetic and pharmaceutical industry, after use of Alcodes Wipes, dermal contact with treated surfaces might occur (76.80% ethanol and 0.02% glutaraldehyde). It can be assumed that dermal contact longer than a few seconds with the recently cleaned and wet surfaces by co-workers is not to be expected.

Exposure to both ethanol and glutaraldehyde will be lower or maximally equivalent to professional exposure. As no unacceptable health effects for the professional user were concluded, a safe use can also be concluded for indirect exposure after use of Alcodes Wipes.

 

Indirect exposure to glutaraldehyde, might also occur after use of BIOBAN™GA 50 Antimicrobial in consumer products. BIOBAN GA 50 Antimicrobial is used to control bacterial and fungal infestation of water based products such as detergents & laundry additives, building materials (such as concrete adhesives & adhesives), latex & paints, paper additives (such as mineral slurries), printing inks and wipes. 

The concentrations of glutaraldehyde in the end-products (PT6) that were treated with the formulations under evaluation are below the dermal AELlocal for glutaraldehyde (0.2%). Therefore it can be concluded that secondary exposure of professionals and non-professionals (adults and children) is negligible and not expected to lead to local dermal effects.

Users of BIOBAN GA 50 Antimicrobial treated products can be inhalatory exposed to maximally 0.1% glutaraldehyde.

Although pure gutaraldehyde has relatively high volatility, the volatility of glutaraldehyde from aqueous solutions containing this substance at low concentrations is relatively low, based on the low Henry’s law value (Henry’s law value of 1x10-7 atm.m3/mole (worst-case)). The vaporisation of glutaraldehyde from very diluted solutions found in end-use products is expected to be very low, and therefore it is not expected that the exposure will exceed the AELlocal inhalation of 0.08 mg/m3.

 

By using BIOBAN GA 50 Antimicrobial treated fluids in paper production, the general public could be potentially exposed to glutaraldehyde residues in food via migration of residues from paper or cardboard used as “food contact material”. The main requirements for the use as “food contact material” is established in REGULATION (EC) No 1935/2004 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 27 October 2004 on materials and articles intended to come into contact with food and repealing Directives 80/590/EEC and 89/109/EEC. The principle underlying this Regulation is that any material or article intended to come into contact directly or indirectly with food must be sufficiently inert to preclude substances from being transferred to food in quantities large enough to endanger human health or to bring about an unacceptable change in the composition of the food or

a deterioration in its organoleptic properties. The regulation shall apply for the intended use of both products in the paper and cardboard industry.

 

The concentrations of glutaraldehyde in the end-products (PT6) that were treated with the formulations under evaluation are below the AELlocal for glutaraldehyde (0.2%). Therefore it can be concluded that secondary exposure of professionals and non-professionals (adults and children) is negligible and not expected to lead to local dermal effects.

 

Based on the above considerations, it can be concluded no adverse health effects are expected for indirect exposure of the (non-)professional users, including the general public.

 

5.4.4      Combined exposure

Alcodes Wipes is a mixture of 2 active substances. The combined toxicological effect of these active substances has not been investigated with regard to repeated dose toxicity.

Both substances induce different type of effects, and therefore the combined exposure to these active substances will not lead to a different toxicological profile than the profile(s) based on the individual substances.

 

5.5            Overall conclusions for the aspect human health

Alcodes Wipes

The proposed field of use of Alcodes Wipes is:

PT2:    Surface disinfection in the food- and beverage industry

PT4:    Surface disinfection in the cosmetic and pharmaceutical industry

 

The product is intended for professional use only.

 

As a result of the assessment:

  • A safe use is concluded for the unprotected professional during use of Alcodes Wipes.
  • A safe use is concluded for indirect exposure.

 

Overall a safe use is concluded for the proposed use.

 

BIOBAN GA 50 Antimicrobial

An assessment was made for PT6 only, as insufficient data were available for the evaluation of Efficacy for the other uses (PT3, PT4 and PT13) .

 

The proposed field of used assessed for BIOBAN GA 50 Antimicrobial is:

  • PT6: In-can preservation of fabric softeners, slurries, adhesives and latexes & paints

 

As a result of the assessment:

  • A safe use is concluded for the protected professional during mixing and loading (suitable gloves, protective clothing and eye/face protection)
  • A safe use is concluded for indirect exposure.

 

Overall a safe use is concluded for the proposed use in PT6.

 

6                  Environment

 

6.1            Introduction

Authorisation is requested for the products Alcodes Wipes and Bioban GA 50. Alcodes Wipes containing glutaraldehyde and ethanol as active substances. Bioban GA 50 contains solely glutaraldehyde as active substance. The intended and evaluated uses of the biocidal products are summarized in table E.1. For Bioban GA 50, the intended uses PT3, 4, 11 and PT13 were not included in this evaluation as insufficient data on Efficacy were available to substantiate claims for these product types, and several uses were withdrawn by the applicant.

 

Table E.1.      Intended uses of Alcodes Wipes – Alcodes Maxiwipes and Bioban GA 50.

Product and intended use

Indoor/outdoor use

Professional/non-professional use

Glutaraldehyde

conc. g/L

ethanol

conc.

g/L

Alcodes Wipes

 

 

 

 

1

PT02: Disinfection of industrial areas –surfaces

Indoor

Professional

0.17

642

2

PT04: Disinfection in food, drink and milk industries –surfaces

Indoor

Professional

0.17

642

Bioban GA 50*

9

PT06 – in can preservatives of water based laundry detergents, mineral slurries in paper industry and paints, glues and adhesives and latex.

Indoors and outdoors use of the treated articles

The end-products can be used by non-professional users/consumers.

0.1-1

 -

* For Bioban GA 50, the intended uses PT3, 4, 11 and PT13 were not included in this evaluation as insufficient data on Efficacy were available to substantiate claims for these product types

 

6.2            Environmental profile of active substance

Ethanol is present in Alcodes Wipes, for disinfection of surfaces in PT02 and PT04. It is to be expected that most of the ethanol and will evaporate and the main emission into the environment will be to air. The risk to air is assessed in a qualitative manner and therefore no PNECs are presented for ethanol.

The predicted no effect levels (PNECs) for glutaraldehyde, based on the ecotoxicological data, are presented in Table E.2. Glutaraldehyde has a low potential for bioaccumulation due to its low log Kow (-0.52). Primary poisoning due to direct exposure to this product is not expected (see section 6.3.2), therefore the risk to birds and mammals is relatively low and these PNECs are not presented.

 

Table E.2.      PNECs for glutaraldehyde

Compartment

Lowest endpoint

AF

PNEC

Test/species

Aquatic – fresh water

NOEC 25 µg a.s./L

10

2.5 µg a.s./L

Freshwater algae

STP

LC50 = 510 mg a.s./L

100

0.51 mg a.s./L

Respiration inhibition

 

6.3            Environmental exposure assessment

 

6.3.1      Chemistry and/or metabolism

Glutaraldehyde is a poly-aldehyde and ethanol is a primary alcohol. No major persistent metabolites are known for ethanol. Under anaerobic conditions, glutaraldehyde is transformed to three major metabolites: compound A, 5-hydroxy-pentanal and 1,5-pentanediol. These metabolites will not be taken into account as EPI suite calculations show that the toxicity of these compounds is lower than glutaraldehyde. This is because these compounds are neutral organic compounds (1,5-pentanediol) or a mono-aldehyde (5-hydroxy-pentanal), which show a lower toxicity to aquatic organisms because glutaraldehyde is a poly-aldehyde. For compound A it is also assumed that it is either a neutral organic compound or a mono-aldehyde and thus less toxic than its parent. Furthermore, they are predicted to be readily biodegradable just as glutaraldehyde under aerobic conditions (EPI suite). The risk for these metabolites to the environment is thus predicted to be much lower than glutaraldehyde, and degradation in anaerobic conditions is not taken into account. Therefore the risk assessment of glutaraldehyde covers the risk of its metabolites.

 

Possible pH effects in the environment were not considered, because the STP and receiving environmental compartments are expected to have sufficient buffering.

 

6.3.2      Distribution in the environment

Various phases in the life cycle of a product may cause emissions and environmental exposure. In the risk assessment, emissions from the application phase, service life and waste phase of the product are considered. Emissions from active substance production and product formulation are not part of the risk assessment. Table E.3 summarises the receiving environmental compartments that have been identified as potentially exposed during the use of the products for the different applications.

 

Table E.3.      Foreseeable routes of entry into the environment on the basis of the                    intended use.

Main scenario

Environmental compartments and groups of organisms exposed

STP#

Fresh-water*

Marine-water*

Soil**

Air

Birds and mammals

PT02 - Disinfection of industrial areas –surfaces

-

-

-

-

++

-

PT04 – Disinfection in food, drink and milk industries

-

-

-

-

++

-

PT06 – In can preservatives – laundry detergents

++

+

-

-

-

-

PT06 – In can preservatives – paints and adhesives, mineral slurries in paints

-

(+)

-

(+)

+

-

PT06 – In can preservatives – mineral slurries in paper industry

++

+

-

-

-

-

++ Compartment primarily exposed, + Compartment secondarily exposed (surface water from STP discharge, vertebrates eating contaminated fish), (+)Compartment potentially exposed, Compartment not exposed, (+)/- The compartment is potentially exposed or not. This depends on the specific use and the characteristics of the active substance, * Including sediment, ** Including groundwater, bees and non-target arthropods, #In the Netherlands, surplus sludge of public STPs is not applied for fertilization and soil improvement of agricultural soil. Therefore, exposure of soil and groundwater via STP surplus sludge application is not part of the risk assessment.

 

The main and major emission route for the proposed use in product type PT02 and PT04, is release to air. The main component of the product is ethanol and the product evaporates. Glutaraldehyde is a relatively volatile substance (vapour pressure = 44 Pa at 20 ˚C), and thus it can be assumed that glutaraldehyde will also evaporate with the ethanol. Therefore there is only direct emission to air and no significant emission to STP will occur.

As glutaraldehyde has a high vapour pressure, it is assumed that the main exposure is to air of glutaraldehyde in paints and adhesives and mineral slurries added to paints.

 

6.3.3      Predicted environment concentration calculations

 

An overview of the chosen models is given in Table E.4.

 

Table E.4.  Relevant exposure scenarios for the intended uses as in-can preservatives

application

scenario applied

In-can preservation of  water based detergents and laundry products – domestic use  (total emission for a city)

ESD for washing detergents as presented in dCAR IPBC – PT06

Paints coatings, latexes and plasters, building materials - professional and non-professional use (outdoors)

Not assessed as emission is mainly to air due to relatively high volatility of  glutaraldehyde 

Mineral slurries and fountain solutions for paper production

Exposure is calculated according to the ESD for paper finishing products, Ineris 2001

 

6.4            Risk characterisation for the environment

 

6.4.1        Aquatic compartment (incl. sediment) and STP

 

6.4.1.1  Water and sediment organisms and micro-organisms in the STP

The risk to STP and aquatic organisms (including sediment organisms) is shown in Table E.3. The other intended uses do not have emission to STP or an on site WWTP and will thus not indirectly emit to surface water. The risk ratios for aquatic organisms and microorganisms in STP/WWTP are  < 1 and thus the criteria for microorganisms in a STP and aquatic organisms have been met.

 

Table E.3: Predicted emission rates to STP in kg/day of glutaraldehyde for PT06 – laundry detergents.

Compartment

PEC

PNEC

PEC/PNEC

units

PT06 laundry detergents

 

Aquatic

2.16E-03

0.0025

0.865

mg/L

STP

2.16E-02

0.51

0.042

mg/L

PT06 - mineral slurries in paper industry

 

Aquatic

2.04E-04

0.0025

0.082

mg/L

WWTP

5.11E-02

0.51

0.100

mg/L

 

6.4.1.2  Surface water intended for the abstraction of drinking water

Ethanol and glutaraldehyde have been on the Dutch market for > 3 years. From the general scientific knowledge collected by the Ctgb about the products and their active substances, the Ctgb concludes that there are in this case no concrete indications for concern about the consequences of these products for surface water from which drinking water is produced, when used in compliance with the directions for use. Glutaraldehyde, ethanol nor their metabolites are on the recommended list of biocides to be monitored for drinking water from surface water (RIVM, 2010). The standards for surface water destined for the production of drinking water are met for all products.

 

6.4.2      Atmosphere

Criteria for the examination of environmental risks to air are not specified in the form of a numerical standard. The assessment of potential impacts on air quality, yet, is aimed to minimize the risk for stratospheric ozone depletion. As there are no indications that glutaraldehyde nor ethanol contribute to depletion of the ozone layer (calculated half lives are for both active substances below the trigger of < 2 days. Glutaraldehyde nor ethanol are listed as ‘controlled substance’ listed in Annex I of Regulation (EC) No 1005/2009 of the European Parliament and thus the environmental risk to air is considered acceptable.

 

6.4.3      Terrestrial compartment

 

6.4.3.1  Soil organisms and non target arthropods (including bees)

Bioban GA 50 is added as a preservative in paints and latexes. Paints and latexes can be used outdoors and potentially emit glutaraldehyde directly to soil or surface water. However, glutaraldehyde is a relatively volatile substance (vapour pressure = 44 Pa at 20 ˚C), and thus it can be assumed that glutaraldehyde will evaporate while the paint is applied and is drying. The emission to soil is therefore expected to be negligible. There is no exposure expected to soil for the PT02 and PT04 applications of Alcodes Wipes. Therefore the products meet the criteria for soil organisms.

 

The risk to bees is considered acceptable as ethanol and glutaraldehyde are not systemic pesticides in plants and emission to soil is considered negligible.

 

6.4.3.2  Groundwater

Assessment of the drinking water criterion defines that the concentration of the active substance and the relevant metabolites in groundwater for the preparation of drinking water needs to be < 0.1µg/L. Ethanol and glutaraldehyde have no emission to soil and thus not to groundwater. Hence, the risk for groundwater is considered acceptable for the intended uses.

 

6.4.3.3  Persistence in soil

Exposure to soil is not expected for ethanol and glutaraldehyde by the intended uses. Hence, the criteria for the persistency in soils are met.

 

6.4.4      Non compartment specific effects relevant to the food chain

 

6.4.4.1  Bioconcentration

Ethanol and glutaraldehyde have low potentials for bioaccumulation due to their low log Kow (0.31 and -0.52).

 

6.4.4.2  Primary and secondary poisoning of birds and mammals

The low BCF (see above) indicates that the risk for birds and mammals is low regarding secondary poisoning. Hence the products meet the standards for the risk to birds and mammals. Primary poisoning is not expected for the intended uses.

 

6.5            Measures to protect the environment (risk mitigation measures)

Alcodes Wipes

The applicant did not include any risk mitigation measures for the environment in the draft proposed label (WG/GA) and PGB-PUB. Additional risk mitigation measures are not required, considering that risks to the environment are acceptable for the intended uses.

 

BIOBAN GA 50 Antimicrobial.

The applicant has added the following unnecessary sentence to the draft WG/GA:

Dit materiaal is zeer giftig voor Daphnia; voorkom verontreiniging van oppervlaktewater.

 

This sentence will be removed. Additional risk mitigation measures are not required, considering that risks to the environment are acceptable for the intended uses.

 

6.6            Overall conclusion for the aspect environment

All intended uses show acceptable risks to the environment and no additional risk mitigation measures are needed. Therefore, when used in accordance with the legal Instructions for Use (WG/GA), the products  Alcodes Wipes and Bioban GA 50 with active substances glutaraldehyde either or not in combination with ethanol, comply with the environmental standards and will not cause unacceptable effects to the environment.

 

7                  Conclusion

 

Alcodes Wipes

it can be concluded that Alcodes Wipes, when used in accordance with the proposed label (WG/GA), is effective in controlling bacteria (excluding bacterial spores and mycobacteria) and yeasts on surfaces in

-                the cosmetic and pharmaceutical industry;

-                the production, storage, and consumption area of food, feed and drinks.

Overall a safe use is concluded for the product. All intended uses show acceptable risks to the environment and no additional risk mitigation measures are needed.

 

BIOBAN GA 50 Antimicrobial

BIOBAN (TM) GA 50 Antimicrobial, when used in accordance with the proposed label (WG/GA), is  expected to be effective as an in-can preservative of the following water based products: fabric softeners, slurries, adhesives and latexes& paints, by the control of deteriorating bacteria and fungi (PT06).

Several other uses in the original application were removed from the WGGA since the product types were withdrawn by the applicant (PT11 and PT13) or requested efficacy data were not provided (PT03 and PT04).

Overall a safe use is concluded for the proposed use in PT6, the product complies with the environmental standards and will not cause unacceptable effects to the environment..

 

8                  Classification and labelling

 

8.1            Alcodes Wipes

Substances, present in the formulation, which should be mentioned on the label by their chemical name (other very toxic, toxic, corrosive or harmful substances) *:

.............

.............

Symbol:

F

Indication of danger:

Highly flammable

 

 

Indication of danger:

 

 

 

Indication of danger:

 

R phrases

R11

Highly flammable

S phrases

S16

Keep away from sources of ignition – No smoking.

Special provisions:
DPD-phrases

 

 

 

 

 

Child-resistant fastening obligatory?

Not applicable

Tactile warning of danger obligatory?

Not applicable

* according to 1999/45/EC, article 10, point 2.3

 

8.2            BIOBAN GA 50 Antimicrobial

The identity of all substances in the mixture that contribute to the classification of the mixture *:

.............

Pictogram:

GHS05

Signal word:

Danger

 

GHS06

Signal word:

Danger

 

GHS08

GHS09

Signal word:

Danger

Warning

H-statements:

H301

Toxic if swallowed

 

H331

Toxic if inhaled

 

H314

Causes severe skin burns and eye damage

 

H317

May cause an allergic skin reaction

 

H334

May cause allergy or asthma symptoms or breathing difficulties if inhaled

 

H335

May cause respiratory irritation

 

H400

Very toxic to aquatic life

P-statements:

P260

Do not breathe dust/fume/gas/mist/vapours/spray

 

P280

Wear protective gloves/protective clothing/eye protection/face protection

 

P285

In case of inadequate ventilation wear respiratory protection

 

P301 + P330 + P331+P310

IF SWALLOWED: rinse mouth. DO NOT induce vomiting and immediately call a POISON CENTER or doctor/physician

 

P303 + P361 + P353 +P310

IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing . Rinse skin with water/shower and immediately call a POISON CENTER or doctor/physician

 

P305 + P351 +

P338 + P310

IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing and immediately call a POISON CENTER or doctor/physician

 

P273

Avoid release to the environment

Supplemental Hazard information:

none

sentence

Child-resistant fastening obligatory?

Tactile warning of danger obligatory?

* according to Reg. (EC) 1272/2008, Title III, article 18, 3 (b)

 

Remarks:

·         P304+ P340 not included as not highly recommended

·                                                                                 P430 + P233 not included as formulation is not volatile

 

 

9                  References

 

ESD PT06

Ineris, 2001; Supplement to the methodology for risk evaluation of biocides. Emission scenario document for biocides used paper coating and finishing (product type 6, 7 & 9). Institute National de l’Environment Industriel et des Risques. INERIS report DRC-01-25582-ECOT-CTi/VMi-n°01DR01183, Verneuil-en-Halatte, France, May 2001

HERA 2005

Human and Environmental Risk Assessment on Ingredients of Household cleaning products. Guidance Document Methodology. 2005

Regulation (EC) no 1005/2009

Regulation (EC) No 1005/2009 of the European Parliament and the Council of 16 September 2009 on substances that deplete the ozone layer.

RIVM, 2010

RIVM, 2010: Biociden in oppervlaktewater voor drinkwaterproductie., National institute for public health and the environment, RIVM-report 601712007/2010, Bilthoven, The Netherlands

TGD

Technical Guidance Document on Risk Assessment in support of Commission Directive 93/67/EEC on Risk Assessment for new notified substances; Commission Regulation (EC) No 1488/94 on Risk Assessment for existing substances; Directive 98/8/EC of the European Parliament and of the Council concerning the placing of biocidal products on the market. Part II. European Commission Joint Research Centre, EUR 20418 EN/2, Ispra, Italy, 2003.

 


Appendix I to chapter 6.  EUSES and Excel calculations

 

STP modelling

Local STP distribution and concentrations

 

 

 

 

Compound:

glutaraldehyde

 

 

 

 

parameter

value

unit

s/o/p

Molecular weight

100.11

g mol-1

s

Octanol-water partition coefficient (Kow)

0.4365

-

s

Vapour pressure at test temperature

44

Pa

s

Test temperature varpour pressure

20.1

°C

s

Solubility

405500

mg L-1

s

Test temperature solubility

20

°C

s

Henry constant at environmental temperature (H)

0.01

Pa m3 mol-1

s

Chemical class for Koc QSAR

Non hydrophobics

 

p

Organic carbon-water partition coefficient (Koc)

6.80

L kgdwt-1

p

Kp (raw sewage):

2.04

L kgdwt-1

p

Kp (activated sludge):

2.52

L kgdwt-2

p

Kp (settled sewage sludge):

2.04

L kgdwt-3

p

Kp effluent sewage sludge):

2.52

L kgdwt-4

p

Characterization of biodegradability

Readily biodegradable

 

p

Rate constant for degradation in a STP

24

d-1

p

Emission rate chemical:

2.0205

kg d-1

s

 

 

 

 

Remarks

 

 

 

Calculation are made by using default parameters for an STP.

 

 

 

 

Summary of distribution

 

 

 

To air

0.00

%

 

To water

12.7

%

 

Via sludge

0.06

 

 

- primary sludge

0.1

%

 

- surplus sludge

0.0

%

 

Degraded

87.3

%

 

 

 

 

 

Concentrations

 

 

 

In air

9.03E-10

g m-3

 

Dry swage sludge

1.64E+00

mg kg-1

 

primary sludge:

2.06E+00

mg kg-1

 

surplus sludge:

3.23E-01

mg kg-1

 

Effluent (total)

1.28E-01

mg L-1

 

dissolved

1.28E-01

mg L-1

 

associated

9.69E-06

mg L-1

 

In solids effluent

3.23E-01

mg kg-1

 

 

 

 

 

PEC for micro-organisms in the STP

1.28E-01

mg L-1

 

 

 

 

 

Calculations are made for an STP with primary settler (9-box). The model is based on SimpleTreat 3.1

s: parameters is required

 

 

 

o: output

 

 

 

p: default value chosen from pick-up list

 

 

 

 

 

 

 

 

Emission to STP calculations of glutaraldehyde

 

Emission of glutaraldehyde from its intended use as a preservative in mineral slurries in the paper industry

Code in ESD

description

unit

Input

source

 

volume of a.i. per kg water

mg/L water

1000

PGB

 

volume of a.i. per kg mineral slurry

mg/ kg slurry

300

PGB

 

fraction mineral clay per tonne paper

 

0.1

Public information

Qsubst

quantity of active substance applied per kg of paper

[kg a.s./kg]

0.00003

 

-

type of paper produced

[-]

 

 

Qpaper

quantity of coated paper produced per day

worst case  - News print

[kg/d]

449000

 

Fbroke

fraction of coated broke produced compared to overall production

[-]

0.2

 

Ffix

fixation fraction

[-]

0

 

Fclosure

degree of closure of the water system

[-]

0.75

 

 

Output

 

 

 

 

Elocal3,water

local emission of active substance to waste water

[kg a.s./d]

2.02E+00

 

 

Emission of glutaraldehyde from its intended use as a preservative in washing detergents

consumption model wash detergents

 

 

 

Number of households per STP (eq)  

 

4000

 

fraction of house holds having a washing machine

 

1

suggested D

washing machines using detergent with PT02 or PT06 claim

4000

O

concentration of disinfectant/preservative

kg/L

0.00100

S

Amount of liquid used in washing machine

L

0.150

HERA TGD (2005), Appendix F, page 85

number of washing events per day of washing machine

 

0.57

HERA TGD (2005), Appendix F, page 85

Penetration factor of disinfectant

Fpenetr

0.5

D

litres used per day

 

342

litres/day

total of active substance per day

 

0.342

kg/day

 



[1] The vapour pressure of glutaraldehyde was assessed to be 20 hPa at 20 °C for a formulation containing 50% water. The vapour pressure is mainly caused by the vapour pressure of the water (draft CAR based on data from BASF and Dow). In the draft CAR a vapour pressure of 40 Pa was included, and it was reported that glutaraldehyde does not easily evaporate from water (Henrys Law Constant 5.86E-02 Pa.m3.mol-1).