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Ecotoxicological information

Toxicity to aquatic algae and cyanobacteria

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Description of key information

Key studies: Chloroacetyl chloride hydrolyzes quickly to chloroacetic acid. Data on chloroacetic acid are provided. Experimental results: Two studies with Scenedesmus subspicatus were independently performed at two different laboratories. The obtained results for biomass and growth were within the same range, i.e. 25-28 μg/l for biomass and 30-70 μg/l for growth (48-72 hour EC50-values). The results obtained in these studies support the classification included in the harmonised classification and labelling list. 

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Additional information

Key studies: Chloroacetyl chloride hydrolyzes quickly to chloroacetic acid. Data on chloroacetic acid are provided. Experimental results: Two studies with Scenedesmus subspicatus were independently performed at two different laboratories. The obtained results for biomass and growth were within the same range, i.e. 25-28 μg/l for biomass and 30-70 μg/l for growth (48-72 hour EC50-values). The results obtained in these studies support the classification included in the harmonised classification and labelling list.