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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

A culture of Skeletonema costatum were exposed to a series of test concentrations of Petasan. The test was carried out according to Dynea SOP No 30 which is an extract of the ISO Protocol : iso dp 10253. In addition to balnk, nominal concentrations ranging from 1 to 1000 mg/l seawater were tested. The test lasted for 72 hrs and the EC50 was calculated to be 20 mg/litre. 

Key value for chemical safety assessment

EC50 for marine water algae:
20 mg/L
EC10 or NOEC for marine water algae:
11 mg/L

Additional information