Registration Dossier

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Endpoint:
toxicity to aquatic algae and cyanobacteria
Adequacy of study:
other information

Data source

Reference
Reference Type:
other: Body responsible for the test
Title:
Unnamed

Materials and methods

Test guideline
Qualifier:
according to guideline
Principles of method if other than guideline:
- Organization for Economic Co-operation and Development
(OECD), OECD guidelines for Testing of Chemicals, guideline
No. 201: "Freshwater Alga and Cyanobacteria, Growth
Inhibition Test", Adopted March 23, 2006.


- European Economic Community (EEC), EEC directive 92/69,
Part C: Methods for the determination of ecotoxicity,
Publication No. L383, December 1992, C-3: "Algal Inhibition
Test".


- ISO International Standard 8692: "Water quality -
Freshwater algal growth inhibition test with unicellular
green algae", Second edition, 01 October 2004.
GLP compliance:
yes

Test solutions

Details on test solutions:
Identity and concentration of auxiliary solvent for dispersal: None

Test organisms

Test organisms (species):
other: Pseudokirchneriella subcapitata, strain: NIVA CHL 1

Study design

Limit test:
no
Total exposure duration:
48 h

Test conditions

Hardness:
24 mg CaCO3/L

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
4.6 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
4.6 mg/L
Basis for effect:
biomass
Details on results:
%Concentration loss over test: ... 0

Applicant's summary and conclusion