Difference in level between water and sediment

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Human exposure to bisphenol A (BPA) can occur in contaminated rivers where levels range from 5 to 1500 ng/L. River sediment levels can range from 5 to 100 µg/kg of sediment. BPA MW 228, Melting Pt. 150 C, log P=4.04, pKa 9.5, water solubility =125 mg/L at 25 C. Compare the range of BPA concentrations in river water and sediment after converting both unit ranges to pp. Why is there this difference in level between water and sediment?

Reference no: EM13663920

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