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Diss Factsheets

Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
key study
Study period:
24.04.-05.10.2004
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: GLP guideline study with acceptable restrictions.

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Report date:
2004

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method C.2 (Acute Toxicity for Daphnia)
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
2-bromo-N-[4-chloro-2-(2-chlorobenzoyl)phenyl]acetamide
EC Number:
226-844-1
EC Name:
2-bromo-N-[4-chloro-2-(2-chlorobenzoyl)phenyl]acetamide
Cas Number:
5504-92-7
Molecular formula:
C15H10BrCl2NO2
IUPAC Name:
2-bromo-N-[4-chloro-2-(2-chlorobenzoyl)phenyl]acetamide
Test material form:
solid: particulate/powder
Remarks:
migrated information: powder

Sampling and analysis

Analytical monitoring:
yes

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
48 h

Test conditions

Test temperature:
19 - 20.5 °C
pH:
7.9
Dissolved oxygen:
8.8
Nominal and measured concentrations:
nominal 100 mg/l

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility

Any other information on results incl. tables

The measured concentration of the test item after 0h, 24h and 48h was < LOQ.

The LOQ was 0.09 mg/l.

Applicant's summary and conclusion

Conclusions:
The acute toxicity of BDB to Daphnia magna was tested in a limit test according to the guideline 92/69/EEC. For the toxicity test the Daphnia were exposed to the test item in a nominal concentration of 100 mg/L for 48 hours. No immobilisation of the Daphnia occurred in the control and the test group during the test.