3.4. A lake has the following characteristics: Volume = 1 X 106 m3 Surface Area = 1 x 10 m² 1 Water residence time = 0.7

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3 4 A Lake Has The Following Characteristics Volume 1 X 106 M3 Surface Area 1 X 10 M 1 Water Residence Time 0 7 1 (148.77 KiB) Viewed 26 times

3.4. A lake has the following characteristics: Volume = 1 X 106 m3 Surface Area = 1 x 10 m² 1 Water residence time = 0.75 yr A soluble pesticide is input to the lake at a rate of 10 x 106 mg yr-). The in-lake concentration is 0.8 mg L-!. (a) Determine the inflow concentration (assume inflow = outflow). (b) Determine the transfer function. (c) If the only removal mechanism (other than flushing) is volatilization, compute the flux of the pesticide out the lake's surface and to the atmosphere. (d) Express the result of part (c) as a volatilization velocity.