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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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In a 72 hour toxicity study, the cultures of Diatom (Skeletonema costatumCCAP 1077/5) were exposed to Cardolite NC-603 (technical grade) at nominal concentrations of 0, 62.5, 125, 250, 500 and 100 mg/l nominal WAF loading rate under static in accordance with the guideline ISO 10253 (Water quality - Marine Algal Growth Inhibition Test with Skeletonema costatum and Phaeodactylum tricornutum).


The EL50based biomass was 250 mg/l and the EL50based on growth rate was 1300 mg/l. There were no compound related phytotoxic effects.


The study is classified as Klimisch Code 2 (reliable with restriction) as it was performed to an internationally recognised method (ISO 10253) and was conducted to Good Laboratory Practice.