# Outside the city of Five Points, a small illegal dump is found containing old computer monitors. The concentration of lead in the soil is 200 ppm in…

Outside the city of Five Points, a small illegal dump is found containing old computer monitors. The concentration of lead in the soil is 200 ppm in a primary area, a circular region with a radius of 7 meters centered at the dump. A secondary area with an additional width of 7 meters has a concentration of 20 ppm.

Lead can be treated at a cost of \$9/m2 with phytoremediation with sunflowers or \$45/m3 with removal of soil by excavation.

Show your work in each calculation below.

a. What is the range of lead concentrations in mg/kg?b. What is the area of the primary area? What is the area of the secondary area?c. Evaluate the cost of remediation through phytoremediation and excavation to 1 meter for the primary and secondary area.d. Discuss two viable methods for reducing lead in computer monitors.e. Explain a shortcoming of one of the methods you identified in Part d.11. Outside the city of Five Points, a small illegal dump is found containing old computer monitors. The concentration of lead in the soil is 200 ppm in a primary area, a circular region with a radius of 7 meters centered at the dump. A secondaryarea with an ad onal width of 7 meters has a concentration of 20 ppm. Pr’liurv In with – Semdty unwim ariﬁus ennui-a with at” Mandacommmbn aim: of (“mum of“: of 200 ppm 20 mm Lead can be treated at a cost of \$9/m2 with phytoremediation with sunﬂowers or \$45/m3 with removal of soil by excavation.Show your work in each calculation below. a. What is the range of lead concentrations in mg/kg? b. What Is the area of the primary area? What Is the area of the secondary area? c. Evaluate the cost of remediation through phytoremediation and excavation to 1 meter for the primary and secondary area.d. Discuss two viable methods for reducing lead in computer monitors. e. Explain a shortcoming of one of the methods you identiﬁed in Part d.

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