Registration Dossier

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

Currently viewing:

Administrative data

Link to relevant study record(s)

Description of key information

The results of a number of published and proprietary studies in different species are available.

Key value for chemical safety assessment

EC50 for freshwater algae:
1.1 mg/L

Additional information

The results of a number of studies in different species are available and are summarised below.

Species

Endpoint

Time

Comment

Reference

Microcystis aeruginosa

Toxicity threshold: 4.1 mg/L

8d

 

Bringmann & Kuehn, 1978

Scenedesmus subspicatus

Toxicity threshold: 3.2 mg/L

8d

 

Bringmann & Kuehn, 1978

Scenedesmus subspicatus

EC50 1.1-1.3 mg/L (biomass); 2.8-4.2 mg/L (growth)

96h

 

Kuehn & Pattard, 1990

Selenastrum capricornutum

EC50 4.4 mg/L

96h

Data access unclear

Burgess & Wirth, 1990

Chlorella emersonii

EC50 5-10 mg/L

48h

 

Dave et al, 1979

Phytoplankton species

EC100 50 mg/L

LOEC 5 mg/L

14d

 

Blanck et al, 1984