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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:
supporting study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: No analytical monitoring

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1988
Report date:
1988

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
Deviations:
no
Remarks:
The study was conducted according to guideline in effect at time of study conduct.
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Purity: R7623 Technical, solid

Sampling and analysis

Analytical monitoring:
no

Test solutions

Vehicle:
yes

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
24 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
24 h
Dose descriptor:
EC50
Effect conc.:
20.5 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility
Duration:
24 h
Dose descriptor:
NOEC
Effect conc.:
10 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility

Any other information on results incl. tables

Lowest concentration producing 100% mortality was 32 mg/L.

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
24-hour EC50 = 20.5 mg/L
24-hour NOEC = 10 mg/L
Executive summary:

An acute, static 24-hour test was conducted at nominal concentrations of 0, 10, 18, 32, 56 and 100 mg/L on Daphnia magna. Exposure after 24 hours resulted in 100% immobility at 32 mg/L. Based on nominal concentration , the EC50 was 20.5 mg/L and the NOEC was 10 mg/L.