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Ecotoxicological information

Toxicity to soil microorganisms

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Description of key information

EC50 (28d) > 1.2 mg/kg soil dry weight equivalent to 900.0 g/ha

Key value for chemical safety assessment

Additional information

The effect of the test substance on soil microflora was investigated in one study (Mallett and Hayward, 1999) that was carried out according to GLP and the method described in EPPO Bulletin 24, 1-16 (1994) using a loamy sand soil sample from grassland that had not been treated with pesticides within 5 years prior to the study. The substance was applied at a concentration of 1.2 mg/kg soil dry weight, equivalent to 900 g/ha. When present at this concentration, the substance did not give rise to any statistically significant effects greater than ± 3 % of the control values on soil microflora respiration and greater than ± 6 % of the control values on soil nitrogen transformation after 28 days incubation.