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EC number: 204-598-6
CAS number: 123-07-9
Table 1: Mean measured concentrations tested and corresponding cumulative percent and number of immobilized organisms made during the 48-hour static acute exposure of daphnids (Daphnia magna) to ethyl phenols (actual number of immobilized daphnids is presented in parentheses).
The purpose of this study was to estimate the acute toxicity (EC50) of ethyl phenols to daphnids (Daphnia magna) under static test conditions.
Based on the results of this test, the 48-hour EC50 value for ethyl phenols and Daphnia magna was determined to be 9.0 mg/L, with 95% confidence intervals of 6.2 to 12 mg/L. The No-Observed-Effect Concentration (NOEC) was determined to be 2.4 mg/L.
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