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###### 5. A nationwide study of 139 stream waters found a commonly used detergent surfactant; nonylphenol, in 52% of the 139 streams. The median stream concentration of 4-nonylphenol was 700 ng/L_ Controlled studies to estrogen (namely 17a-ethinyl estradiol) found feminization of fish populations exposed to 2 ng/L_ Consider the information in the following table, would you expect feminization of fish populations exposed to 700 ng/L of 4-nonylphenol? Show all calculations needed to support your answer

5. A nationwide study of 139 stream waters found a commonly used detergent surfactant; nonylphenol, in 52% of the 139 streams. The median stream concentration of 4-nonylphenol was 700 ng/L_ Controlled studies to estrogen (namely 17a-ethinyl estradiol) found feminization of fish populations exposed to 2 ng/L_ Consider the information in the following table, would you expect feminization of fish populations exposed to 700 ng/L of 4-nonylphenol? Show all calculations needed to support your answer. Chemical 17a-ethiny estradiol 4-nonylpheno _ Estrogenic activity 1.0 0.0oo1 A scientific study reported the half life of NP in soil as 1.4 days: Calculate the time needed for degradation of 99.9% of NP applied to soil based on the above half life

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