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Ecotoxicological information

Short-term toxicity to aquatic invertebrates

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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: These data were published in the peer-reviewed scientific literature. Though the studies were not performed under Good Laboratory Practices nor according to a validated guideline, the data are sufficiently documented and acceptable.

Data source

Reference
Reference Type:
publication
Title:
Acute Toxicity of Priority Pollutants to Water Flea (Daphnia magna)
Author:
LeBlanc, G.A.
Year:
1980
Bibliographic source:
Bull. Environ. Contam. Toxicol., Vol. 24, Iss. 5, pp. 684-691.

Materials and methods

Test guideline
Qualifier:
no guideline followed
Principles of method if other than guideline:
The study authors employed standard acute toxicity testing methods.
GLP compliance:
no

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
- Name of test material (as cited in study report): Bromine
- Analytical purity: >=80%

Sampling and analysis

Analytical monitoring:
not specified

Test solutions

Vehicle:
no

Test organisms

Test organisms (species):
Daphnia magna

Study design

Test type:
static
Water media type:
freshwater
Limit test:
no
Total exposure duration:
24 h
Post exposure observation period:
Not reported

Test conditions

Hardness:
173 mg/L CaCO3
Test temperature:
22 ºC
pH:
7.4 to 9.4
Dissolved oxygen:
6.5 to 9.1 mg/L
Salinity:
Not reported
Nominal and measured concentrations:
Mean value of 1500 micrograms/L with a range of 1000 to 2200 micrograms/L.
Reference substance (positive control):
no

Results and discussion

Effect concentrations
Duration:
24 h
Dose descriptor:
LC50
Effect conc.:
ca. 1 500 µg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
mortality
Remarks on result:
other: 1000-2200 micrograms/L

Applicant's summary and conclusion

Conclusions:
A 24-hour LC50 was reported in water fleas at a concentration of 1500 micrograms/L.