Registration Dossier

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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
Principles of method if other than guideline:
The study was conducted in accordance with EC Methods for
Determination of Ecotoxicity, Annex to Directive 92/69/EEC
(O.J. No. L383A, 1992)Part C, Method 3 "Algal Inhibition
Test" and the OECD Guideline for Testing of Chemiclas No.
201 "Alga, Growth Inhibition Test" (1984) and the proposal
for updating this guideline (Freshwater Alga and
Cyanobacteria, Growth Inhibition Test), document 2-2,
revision 2, dated 18 February 2004.
GLP compliance:
yes

Test organisms

Test organisms (species):
other: Pseudokircheriella subcapitata

Study design

Total exposure duration:
72 h

Results and discussion

Effect concentrationsopen allclose all
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
30.3 mg/L
Basis for effect:
biomass
Duration:
72 h
Dose descriptor:
EC50
Effect conc.:
93.5 mg/L
Basis for effect:
growth rate
Duration:
72 h
Dose descriptor:
NOEC
Effect conc.:
9.33 mg/L
Basis for effect:
growth rate

Applicant's summary and conclusion