Registration Dossier

Administrative data

Endpoint:
short-term toxicity to fish
Type of information:
experimental study
Adequacy of study:
key study
Study period:
30 Jan -03 Feb, 1995
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: done under GLP and OECD method

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1995
Report Date:
1995

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method C.1 (Acute Toxicity for Fish)
Version / remarks:
and OECD nr.203 "Fish, Acute Toxicity Test "
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Oncorhynchus mykiss (previous name: Salmo gairdneri)
Details on test organisms:
Mean std length: 6.4cm (SD: 0.6cm)
Mean std weight: 3.43g (SD: 0.91g)

Study design

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

Test conditions

Hardness:
192 ± 4 mgCaCO3/l
Test temperature:
14°C
pH:
7.5
Dissolved oxygen:
10.0mg/l
Nominal and measured concentrations:
All values expressed in terms of measured concentration. Values were 95% of nominal at 0 and 25 hours, 103% at 72 hours and 91% at 96 hours. TThe NOELhe nominal test concentration was 100 mg/l.
Details on test conditions:
Photoperiod: 16hr light, 8hr dark.

Results and discussion

Effect concentrations
Duration:
96 h
Dose descriptor:
EC50
Effect conc.:
> 96 mg/L
Nominal / measured:
meas. (initial)
Conc. based on:
test mat.
Basis for effect:
mortality
Details on results:
No observed effect level: 96mg/l

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
The 96hr LC50 and NOEL for the test substance is estimated to be >= 96mg/l