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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Link to relevant study record(s)

Description of key information

Study was conducted according to OECD guideline 201, data are reliable without restrictions. 

Key value for chemical safety assessment

EC50 for freshwater algae:
100 mg/L
EC10 or NOEC for freshwater algae:
100 mg/L

Additional information

The toxicity of Silastol H 200 TS on the growth of the fresh water green alga Desmodesmus subspicatus was tested in a study

according to OECD guideline 201.

No significant effects were observed up to and including the highest test concentration (WAF of 100 mg/L Silastol H 200 TS).

Growth rate:

EC50: > 100 mg/L (nominal)

NOEC:100 mg/L (nominal)


EC50: > 100 mg/L (nominal)

NOEC:100 mg/L (nominal)