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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:
other information
Reliability:
2 (reliable with restrictions)
Cross-reference
Reason / purpose:
reference to same study

Data source

Reference
Reference Type:
publication
Title:
Toxicity of aryl- and benzylhalides to Daphnia magna and classification of their mode of action based on quantitative structure-activity relationship
Author:
Marchini, Silvia; Passerini, Laura; Hoglund Marrilynn D.; Pino Anna; Nendza, Monika
Year:
1999
Bibliographic source:
Environmental Toxicology and Chemistry (1999), 18(12), 2759-2766

Materials and methods

Principles of method if other than guideline:
Immobilisation test.

Test material

Reference
Name:
Unnamed
Type:
Constituent
Details on test material:
Source: Fluka AG (Buchs, Switzerland)

Sampling and analysis

Analytical monitoring:
yes

Test organisms

Test organisms (species):
Daphnia magna
Details on test organisms:
Age of test organisms: less than 24 hours

Study design

Total exposure duration:
48 h

Test conditions

Test temperature:
21.5 °C
pH:
8.3
Details on test conditions:
16:8 hours light:dark

Results and discussion

Effect concentrations
Duration:
48 h
Dose descriptor:
EC50
Effect conc.:
0.39 mg/L
Remarks on result:
other: 0.35 - 0.44

Applicant's summary and conclusion

Conclusions:
With the indicated test data the EC50 of 2,6-dichlorobenzal chloride to Daphnia magna under the conditions of the test was estimated to be 0.39 mg/L.