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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Ecotoxicological information

Toxicity to soil macroorganisms except arthropods

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Administrative data

Endpoint:
toxicity to soil macroorganisms except arthropods: long-term
Type of information:
read-across based on grouping of substances (category approach)
Adequacy of study:
key study
Justification for type of information:
The justification document on the read across category approach is included in IUCLID section 13.

Data source

Materials and methods

Test material

Constituent 1
Chemical structure
Reference substance name:
Benzenesulfonic acid, C20-24 (even numbered) alkyl derivs.
Molecular formula:
C9H12SO3(CH2)n n=17-21
IUPAC Name:
Benzenesulfonic acid, C20-24 (even numbered) alkyl derivs.
Test material form:
other: liquid
Details on test material:
The test substance is a brown viscous liquid with sulfurous odor.

Results and discussion

Effect concentrationsopen allclose all
Duration:
28 d
Dose descriptor:
EC10
Effect conc.:
46 mg/kg soil dw
Nominal / measured:
nominal
Basis for effect:
reproduction
Remarks on result:
other: A. caliginosa
Dose descriptor:
EC10
Effect conc.:
>= 120 mg/kg soil dw
Nominal / measured:
nominal
Basis for effect:
reproduction
Remarks on result:
other: E. crypticus
Details on results:
No toxicity to E. crypticus was seen at any dose level, including the highest dose level of 120 mg/kg soil. A dose-related inhibition of cocoon production was seen in A. caliginosa at the highest concentration of 150 mg/kg soil.

Applicant's summary and conclusion

Conclusions:
Groups of A. caliginosa were exposed to soil containing 25 -150 mg/kg soil of LAS for 28 days. Groups of E. crypticus were exposed to concentrations of 0, 10, 40, 60, 80, 100, or 120 mg/kg soil (nominal). EC10 values based on reproduction were 46 mg/kg soil for A. caliginosa, and >= 120 mg/kg soil for E. crypticus.