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Ecotoxicological information

Long-term toxicity to fish

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Description of key information

No effect on the growth of the fish was observed at the highest concentration (100 mg/L). Therefore, the NOEC was determined to be > 100 mg/L.

Key value for chemical safety assessment

Additional information

The chronic toxicity of 1,2,4-Triazole to juvenile Rainbow Trout (Oncorhynchus mykiss) was determined in a static-renewal test over an exposure period of 28 days accoding to OECD 215 guideline and GLP requirements (Dorgerloh, 2001). In this test fish were exposed to nominal concentrations of 1.00, 3.20, 10.0, 32.0 and 100 mg test item/L. The concentrations were maintained during the test. The fish wet weights on day 28 and the 'pseudo' specific growth rates show no sigificant difference compared to the pooled control groups in the period of 0 - 28 days. So, the NOErC (0-28d) is > 100 mg test item/L.