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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

Key study: Test method OECD 203. GLP study. The 96 hours LC50  value for OS-2200 in rainbow trout was > 100 mg/L and the NOAEL was 100mg/L based on the nominal exposure concentration.

Key value for chemical safety assessment

LC50 for freshwater fish:
100 mg/L

Additional information

Key study: An acute fish test was performed according to EU Method C1 and OECD Guideline 203 under GLP conditions. A limit test was performed on Rainbow trout (Oncorhynchus mykiss) at 100 mg/L of test item. 10 fish per vessel were exposed to 0 (control) and 100 mg/L test item under semi-static conditions for 96 hours. No mortalities or significant treatment-related effects on the fish were noted. Therefore, the 96 hour-LC50 was determined to be >100 mg/L and the NOEL was 100 mg/L based on the nominal concentration.