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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

Administrative data

Endpoint:
short-term toxicity to aquatic invertebrates
Type of information:
migrated information: read-across from supporting substance (structural analogue or surrogate)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)

Data source

Reference
Reference Type:
publication
Title:
Statistical models to predict the toxicity of major ions to Cerodaphnia Dubia, Daphnia Magna and Pimephales Promelas (Fathead Minnows)
Author:
Mount David R.
Year:
1997
Bibliographic source:
Enviromental Toxicology and Chemistry, Vol. 16, No. 10, pp.2009-2019

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
other: EPA/600/4-90/027
GLP compliance:
no

Test material

Constituent 1
Chemical structure
Reference substance name:
Calcium sulfate
EC Number:
231-900-3
EC Name:
Calcium sulfate
Cas Number:
7778-18-9
Molecular formula:
Ca.O4S
IUPAC Name:
Calcium sulfate

Sampling and analysis

Analytical monitoring:
yes

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Daphnia magna

Study design

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

Test conditions

Test temperature:
25ºC
pH:
7.5-9
Dissolved oxygen:
>40% saturation

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
LC50
Effect conc.:
> 1 970 mg/L
Conc. based on:
test mat.
Basis for effect:
mortality

Applicant's summary and conclusion

Validity criteria fulfilled:
yes
Conclusions:
LD50 (CaSO4) (48h)> 1970 mg/l