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Diss Factsheets

Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Administrative data

Link to relevant study record(s)

Description of key information

In the only available and reliable study, the test substance's toxicty to algae was determined to be EC50(growth rate, 72 hr) =18.8 mg/L, EC50(biomass, 72 hr)=7.2 mg/L; EC10(Growth rate, 72 hr) = 1.9 mg/L; EC10 (biomass, 72 hr) =0.6 mg/L; EC50(growth rate, 96 hr)=14.5 mg/L; EC50(biomass, 96 hr) = 4.9 mg/l.; EC10(growth rate, 96 hr)=2.2 mg/L; EC10(biomass, 96 hr) = 0.6 mg/l.;

Key value for chemical safety assessment

EC50 for freshwater algae:
18.8 mg/L
EC10 or NOEC for freshwater algae:
1.9 mg/L

Additional information

The test substance was tested for aquatic toxicity against the algae Scenedesmus subspicatus according to the method DIN 38412/9.

The study is reliable and was assigned as key study.

After 72h exposure the aquatic toxicity was determined to be: EC10(growth rate) = 1.9 mg/l, EC50(growth rate)= 18.8 mg/l.