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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

The EC50 value for the 72-h inhibition of growth rate of P. subcapitata is  > 100 mg/L (WAF).  The EC10 value for the 72-h inhibition of growth rate of P. subcapitata is  > 100 mg/L (WAF).

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The toxic effects of the water accommodated fractions of silicic acid, zirconium salt, cadmium pigment encapsulated on the growth rate of algae (Pseudokirchneriella subcapitata) were studied in a state-of-the-art test according to OECD Guideline 201 (Wenzel, 2013). The EC50 value for the 72-h inhibition of growth rate of P. subcapitata is  > 100 mg/L (WAF).

The long-term toxic effects of the Water Accommodated Fractions (WAF) of silicic acid, zirconium salt, cadmium pigment encapsulated on the growth rate of algae (Pseudokirchneriella subcapitata) were studied in a state-of-the-art test according to OECD Guideline 201 (Wenzel, 2013). The EC10 value for the 72-h inhibition of growth rate of P. subcapitata is  > 100 mg/L (WAF).