State of: 2007-12-19

SIDS Initial Assessment Repor t

For

SIAM 25 16-19 October 2007, Helsinki

1. Chemical Name: Category of Alkyl sulfates, Alkane sulfonates and -Olefin sulfonates

2. CAS Number: See Tables 1-1 and 1-2

3. Sponsor Country: Germany Contact Point: BMU (Bundesministerium fr Umwelt, Naturschutz und Reaktorsicherheit) Contact person: Dr. Reiner Arndt Postfach 12 06 29 D-53048 Bonn

4. Shared Partnership with: SDA / Alkylsulfate Consortium

5. Roles/Responsibilities of the Partners:

Name of industry sponsor /consortium SDA / Alkylsulfate Consortium

Process used The BUA Peer Review Process: see next page

6. Sponsorship History

How was the chemical or category brought into the SIDS Program?

By ICCA HPV Initiative

7. Review Process Prior to the SIAM:

last literature search (update): 31 August 2006 (Ecotoxicology and Human Health): databases Biosis, Embase, Medline, Toxline, Scisearch; search profile CAS-No. and special search terms

8. Quality check process: As basis for the SIDS-Dossier the IUCLID was used. All data have been checked and validated by BUA. A final evaluation of the human health part has been performed by the Federal Institute for Risk Assessment (BfR) and of the ecotoxicological part by the Federal Environment Agency (UBA).

9. Date of Submission: Deadline for circulation: 18 July 2007

state of: 2007-02-22 2

10. Date of last Update:

11. Comments:

OECD/ICCA - The BUA*

Peer Review Process

Qualified BUA personnel (toxicologists, ecotoxicologists) perform a quality control on the full SIDS dossier submitted by industry. This quality control process follows internal BUA guidelines/instructions for the OECD/ICCA peer review process and includes:

- a full (or update) literature search to verify completeness of data provided by industry in the IUCLID/HEDSET

- Review of data and assessment of the quality of data

- Review of data evaluation

- Check of adequacy of selection process for key studies for OECD endpoints, and, where

relevant, for non-OECD endpoints by checking original reports/publications

- Review of key study description according robust summaries requirements; completeness and correctness is checked against original reports/publications (if original reports are missing: reliability (4), i.e. reliability not assignable)

- Review of validity of structure-activity relationships

- Review of full SIDS dossier (including SIAR, SIAP and proposal for conclusion and

recommendation for further work)

- In case of data gaps, review of testing plan or rationale for not testing

* BUA (GDCh-Beratergremium fr Altstoffe): Advisory Committee on Existing Chemicals of the Association of German Chemists (GDCh)

OECD SIDS CATEGORY OF ALKYL SULFATES, ALKANE SULFONATES AND ALPHA-OLEFIN SULFONATES

3

CONTENTS

1 identity 8

1.1 IDENTIFICATION OF THE SUBSTANCES 8

1.2 PURITY/IMPURITIES/ADDITIVES 13

1.3 PHYSICO-CHEMICAL PROPERTIES 15

1.4 CATEGORY JUSTIFICATION 22

2 general information on exposure 29

2.1 PRODUCTION VOLUMES AND USE PATTERN 29

2.2 ENVIRONMENTAL EXPOSURE AND FATE 33 2.2.1 SOURCES OF ENVIRONMENTAL EXPOSURE 33 2.2.2 PHOTODEGRADATION 36 2.2.3 STABILITY IN WATER 37 2.2.4 TRANSPORT BETWEEN ENVIRONMENTAL COMPARTMENTS 37 2.2.5 BIODEGRADATION 39 2.2.6 BIOACCUMULATION 44

2.3 HUMAN EXPOSURE 45 2.3.1 OCCUPATIONAL EXPOSURE 45 2.3.2 CONSUMER EXPOSURE 46

3 human health hazards 49

3.1 EFFECTS ON HUMAN HEALTH 49 3.1.1 TOXICOKINETICS, METABOLISM AND DISTRIBUTION 49 3.1.2 ACUTE TOXICITY 54 3.1.3 IRRITATION 64 3.1.4 SENSITIZATION 70 3.1.5 REPEATED DOSE TOXICITY 76 3.1.6 MUTAGENICITY 89 3.1.7 CARCINOGENICITY 96 3.1.8 TOXICITY FOR REPRODUCTION 101

3.2 INITIAL ASSESSMENT FOR HUMAN HEALTH 108

4 hazards to the environment 112

OECD SIDS CATEGORY OF ALKYL SULFATES, ALKANE SULFONATES AND ALPHA-OLEFIN SULFONATES

4

4.1 AQUATIC EFFECTS 112

4.2 TERRESTRIAL EFFECTS 133

4.3 OTHER ENVIRONMENTAL EFFECTS 134

4.4 INITIAL ASSESSMENT FOR THE ENVIRONMENT 134

5 recommendations 137

6 references 138

Annex I: Category Rationale for the Anionic Surfactants (ANS) Category 164

Annex II 180

ANNEX III 183

ANNEX IV 191

Annex V: Use and Exposure Information 219

OECD SIDS CATEGORY OF ALKYL SULFATES, ALKANE SULFONATES AND ALPHA-OLEFIN SULFONATES

5

Tables

Table 1-1: HPV substances of the ANS category ......................................................................................................... 9Table 1-3: Composition of the HPV substances of the ANS category ......................................................................... 14Table 1-4: Surfactant properties for some alkyl sulfates (for references cf. IUCLID datasets) ................................... 16Table 1-5: Summary of physico-chemical properties of HPV chemicals with single chain length .............................. 18Table 1-6: Estimated (EPI Suite v. 3.12, 2005) and experimentally derived solubilities of single chain alkyl sulfates, sodium salts in distilled and reconstituted water .......................................................................................................... 21Table 2-1: Estimated production volumes of HPV substances in 1993 in Germany (BUA, 1998) .............................. 31Table 2-2: Chain length distribution of the European tonnage of alkyl sulfates via CESIO survey (HERA, 2002) .... 31Table 2-3: Consumption of alkyl sulfates [tonnes/a] by World Region in 2003 (CEH, 2004) ..................................... 32Table 2-4: Alkyl sulfate concentrations at WWTPs in the river Rur (Schroeder, 1995) .............................................. 34Table 2-5: Alkyl sulfates concentrations measured in 3 treatment plants and the receiving surface waters in the USA and in porewater (Sanderson et al., 2006b) .................................................................................................................. 35Table 2-6: Estimated atmospheric half-lives of chemicals of the ANS category (EPI Suite v. 3.12, 2005) ................. 36Table 2-7: Experimentally derived sediment-water partition coefficients Kd (l/kg) and sorption coefficients (KOC) for alkyl sulfates on sediment (Marchesi et al., 1991) ....................................................................................................... 37Table 2-8: Biodegradation of alkyl sulfates, sodium salts in the Closed Bottle Test (OECD 301 D) ......................... 39Table 2-9: Biodegradation rates (after 28 days) of alkyl sulfates, sodium salts in OECD 301 F and 84/449/EEC tests (Shell, 1992a) ............................................................................................................................................................... 40Table 2-10: Biodegradation of alkyl sulfates with different counter ions .................................................................... 40Table 2-11: Biodegradation of -olefin sulfonates (HPV substances in bold) ............................................................ 42Table 2-12: Bioconcentration factors of alkyl sulfates in fish ...................................................................................... 45Table 3-1: Data availability for toxicokinetics, metabolism and distribution ............................................................... 50Table 3-2: Metabolites formed from alkyl sulfates with even chain length ................................................................. 52Table 3-3: Influence of chain length on elimination of alkyl sulfates .......................................................................... 53Table 3-4: Comparison of elimination of alkyl sulfates and alkane sulfonates of same chain length .......................... 53Table 3-5: Acute dermal toxicity studies in experimental animals (substances sorted by chain length) ...................... 59Table 3-6: Acute oral toxicity studies in experimental animals (substances sorted by chain length) ........................... 60Table 3-7: Results of different studies on skin irritation in rabbits (substances sorted by chain length) ...................... 64Table 3-8: Counter ion effects on primary skin irritation of C12ASO4 ......................................................................... 66Table 3-9: Developmental Toxicity Teratogenicity in experimental animals (substances sorted by chain length) ... 104Table 4-1: Influence of the counter ion on acute toxicity ............................................................................................. 115Table 4-2: Acute toxicity of alkyl sulfates to Oryzias latipes and Cyprinus carpio prelarva ....................................... 116Table 4-3: Acute toxicity of alkyl sulfates to Leuciscus idus (values refer to nominal test substance concentrations) 117Table 4-4: Long-term toxicity of alkyl sulfates to fish ................................................................................................. 118Table 4-5: Acute toxicity of -olefin sulfonates to fish (all values refer to nominal concentrations) ......................... 120Table 4-6: Acute toxicity of alkyl sulfates to Daphnia magna and Ceriodaphnia dubia ............................................. 122Table 4-7: Acute toxicity results of alkyl sulfates to Daphnia magna from the same laboratory (values refer to nominal test substance concentrations) .....................................................................................................................