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Under the conditions of this studies, the test items did not induce evident mortality or pathological symptoms of adult earthworms after an exposure to the test item concentration of 1000 mg test item/kg soil dry weight for 28 days. Also, the biomass increase of the adult earthworms after 28 days was not statistically significantly reduced compared to the pooled control at the test item concentration of 1000 mg test item/kg soil dry weight. After eight weeks of exposure the earthworm reproduction was not statistically significantly reduced at the limit test item concentration of 1000 mg test item/kg soil dry weight compared to the pooled control.

Thus, the No Observed Effect Concentration (NOEC) with respect to mortality, body weight and reproduction of Eisenia fetida fetida after 8 weeks of exposure in artificial soil was determined to be at 1000 mg test item/ kg soil dry weight.

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