1. Bio concentration factors The concentration of pentachlorophenol has been mea

Question

1. Bio concentration factors The concentration of pentachlorophenol has been measured to be 42.8 mu g.L^-1 in Lake Wingra. A study of the carp fish revealed an average lipid concentration of 20,500 mu g. kg^-1. What is the Bio concentration factor for this fish? 2. Review the carbon cycle Rank the major global pools of carbon by the total mass of carbon in each. Indicate the predominant form of carbon in each. 3. Review the nitrogen cycle List the major pathways in the nitrogen cycle, and the chemical species that are transformed in each.

Explanation / Answer

1. bioconcentration factor = chemical conc. in an organism / conc. in water

                                      = 20500/ 42.8 kg./L

                                      = 478.97 kg/L

2. Carbon pool

a) earth's crust - In sedimentary rocks. Together all sedimentary rocks on Earth store 100,000,000 PgC.

b) oceans- The Earth

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