Registration Dossier

Diss Factsheets

Ecotoxicological information

Toxicity to terrestrial arthropods

Currently viewing:

Administrative data

Endpoint:
toxicity to terrestrial arthropods: short-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 for the read across category approach is included in IU section 13.

Data source

Materials and methods

Test material

Constituent 1
Reference substance name:
Benzenesulfonic acid, C10-13-alkyl derivs., sodium salts
EC Number:
270-115-0
EC Name:
Benzenesulfonic acid, C10-13-alkyl derivs., sodium salts
Cas Number:
68411-30-3
Molecular formula:
C16-19 H25-31 Na O3 S
IUPAC Name:
sodium 4-undecylbenzenesulfonate
Details on test material:
C10-13 LAS was obtained as an aqueous sodium salt solution with an active matter concentration of 16.1% (w/w), average molecular weight = 342 g/mol, distribution of the linear alkyl chains: C10 14%, C11 34%, C12 31%, and C13 21%; average alkyl chain length = C11.6

Study design

Results and discussion

Effect concentrationsopen allclose all
Duration:
21 d
Dose descriptor:
EC10
Effect conc.:
82 mg/kg soil dw
Nominal / measured:
nominal
Basis for effect:
reproduction
Remarks on result:
other: Hypoaspis aculeifer
Duration:
21 d
Dose descriptor:
EC10
Effect conc.:
100 mg/kg soil dw
Nominal / measured:
nominal
Basis for effect:
reproduction
Remarks on result:
other: Hypogastrura assimilis

Applicant's summary and conclusion

Conclusions:
Groups of H. assimilis and H. aculeifer were exposed to various concentrations of test material for 21 days. At the end of this period, the number of offspring were counted. Based on reproduction, The EC10 for H. assimilis was 100 mg/kg dry weight, and the EC10 for H. aculeifer was 82 mg/kg dry weight. The EC10 for H. assimilis was 100 mg/kg dry weight, and the EC10 for H. aculeifer was 82 mg/kg dry weight.