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Ecotoxicological information

Short-term toxicity to fish

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Description of key information

The UVCB substance is  acutely harmful to fish with 96 h LL50 of 3.8 mg/L. 

Key value for chemical safety assessment

LC50 for freshwater fish:
3.8 mg/L
LC50 for marine water fish:
46 mg/L

Additional information

The acute aquatic toxicity of the test substance was evaluated using rainbow trout and was conducted in accordance with OECD Guideline 203. The 96 h LL (Lethal Loading Rate) 50 value of the substance was determined to be 3.8 mg/l. The NOEL was 1.8 mg/l.

Since tests on toxicity of the substance itself to salt water fish are not available, a conclusion by analogy approach according to Annex XI of REACH has been applied. The 96 h LC50 and NOEL values for an analog of this substance, EC 270-608-0, with the saltwater species Cyprinodon variegatas was determined to be 46 mg/l and less than 26 mg/l, respectively.