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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Guideline study with sufficient documentation.

Data source

Reference
Reference Type:
publication
Title:
Toxicity of fluoranthene and its biodegradation metabolites to aquatic organisms
Author:
Ester Sepic, Mihael Bricelj, Hermina Leskovsek
Year:
2003
Bibliographic source:
Chemosphere 52 (2003) 1125–1133

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
ISO 8692 (Water Quality - Fresh Water Algal Growth Inhibition Test with Scenedesmus subspicatus and Selenastrum capricornutum)
Version / remarks:
1989
Deviations:
yes
Remarks:
Modified ISO standard (Volenveider, 1974; ISO, 1989).
GLP compliance:
not specified

Test material

Reference
Name:
Unnamed
Type:
Constituent

Sampling and analysis

Analytical monitoring:
yes

Test organisms

Test organisms (species):
Desmodesmus subspicatus (previous name: Scenedesmus subspicatus)
Details on test organisms:
S. subspicatus from the National Institute of Biology (NIB, Ljubljana, Slovenia).

Study design

Test type:
static
Water media type:
freshwater
Total exposure duration:
7 d

Results and discussion

Effect concentrations
Duration:
7 d
Dose descriptor:
EC50
Effect conc.:
7.1 mg/L
Nominal / measured:
nominal
Conc. based on:
test mat.
Basis for effect:
growth rate
Remarks:
regression method

Applicant's summary and conclusion

Validity criteria fulfilled:
yes