Match up the following: a. Depuration b. BAF c. Piston velocity d. BCF e. AVS f.
ID: 1710671 • Letter: M
Question
Match up the following: a. Depuration b. BAF c. Piston velocity d. BCF e. AVS f. Hydrophobic g. Ingestion rate h. Thin-film model i. Assimilation factor j. Trophic levels Equilibrium with water Amorphous iron sulfide Excretion of pollutant Nonpolar Contaminant uptake from food and water Percent of food actually utilized Amount of food eaten per day Food chain steps Reacration coefficient times depth Laminar interfacial layer True story. In the 1970s, large amounts of waste products from the production of Agent Orange herbicide were disposed of in shallow trenches near Alkali Lake in South Central Oregon. A principal toxic contaminant at the site is pentachlorophenol. Assume that pure NAPL pentachlorophenol has seeped through groundwater from the disposal site and is pooled in small quantities on the bottom of Alkali Lake. Because of the wet spring in 2017. Alkali Lake (a block-fault basin lake) actually has water in it (in dry years it is a dry desert playa). a. What is the maximum possible concentration of pentachlorophenol in the air directly above the surface of the lake? Give answer in units of mg m^-3 (ppb m/v). b. The occupational safety (OSHA) standard for 8-hour workplace exposure to pentachlorophenol is 0.5 mg m-3. Based on your calculation, would it be a good idea to require safety respirators for workers at the Alkali Lake site?Explanation / Answer
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Depuration Excretion of pollutant BAF Contaminant uptake from food and water Piston velocity Reaeration coefficient times depth BCF Equilibrium with water AVS Amorphous iron sulphide Hydrophobic Non polar Ingestion rate Amount of food eaten per day Thin-film model Laminar interfacial layer Assimilation factor Percent of food actually utilized Tropic level Food chain steps