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Short-term toxicity to aquatic invertebrates

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Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
experimental study
Adequacy of study:
supporting study
Study period:
February 07, 2013 - February 17, 2014
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Reason / purpose:
reference to other study
Qualifier:
equivalent or similar to
Guideline:
OECD Guideline 202 (Daphnia sp. Acute Immobilisation Test)
Version / remarks:
Range finding study of OECD Guideline 211
GLP compliance:
no
Analytical monitoring:
no
Test organisms (species):
Daphnia magna
Test type:
static
Water media type:
freshwater
Limit test:
yes
Total exposure duration:
48 h
Nominal and measured concentrations:
100 mg/L (nominal)
Key result
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
> 100 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mobility
Validity criteria fulfilled:
not applicable
Conclusions:
A non GLP preliminary range finding test was carried out as acute immobilisation test to Daphnia magna STRAUS. No immobilisation was observed after 24 h and 48 h at a nominal loading rate of 100 mg/L. The 48-h EC50 was determined to be greater than 100 mg/L.
Endpoint:
short-term toxicity to aquatic invertebrates
Data waiving:
study scientifically not necessary / other information available
Justification for data waiving:
the study does not need to be conducted because a long-term aquatic toxicity study on invertebrates is proposed to be conducted

Description of key information

According to Annex VII of REACH Regulation, the study does not need to be conducted because a long-term study on Daphnia magna is available.

However, a non GLP preliminary range finding test is available as acute immobilisation test to Daphnia magna STRAUS. No immobilisation was observed after 24 h and 48 h at a nominal loading rate of 100 mg/L. The 48-h EC50 was determined to be greater than 100 mg/L (nominal).

Key value for chemical safety assessment

Additional information