TAILIEUCHUNG - Environmental Chemicals IV

Explore the environmental challenges of the Rocky Mountain Arsenal in Colorado as it transitions to a National Wildlife Refuge. • Study the environmental effects, chemical fate and transport, receptors and remedial controls of the Chem-Dyne site in Hamilton, OH. • Explore the environmental clean-up and transition of Midway Island from a Naval Air Station to a sanctuary for over 2,000,000 nesting birds. | Environmental Chemicals IV Principles of Environmental Toxicology Instructor Gregory Möller . University of Idaho Principles of Environmental Toxicology Learning Objectives Explore the environmental challenges of the Rocky Mountain Arsenal in Colorado as it transitions to a National Wildlife Refuge. Study the environmental effects chemical fate and transport receptors and remedial controls of the Chem-Dyne site in Hamilton OH. Explore the environmental clean-up and transition of Midway Island from a Naval Air Station to a sanctuary for over 2 000 000 nesting birds. 2 Principles of Environmental Toxicology Principles of Environmental Toxicology Rocky Mountain Arsenal CO Rocky Mountain Arsenal CO PMRMA Rocky Mountain Arsenal RMA is located approximately 10 miles NE of downtown Denver CO. In 1942 at the height of World War II the . Army purchased the 17 000 acres of land on which to manufacture chemical weapons such as mustard gas white phosphorus and napalm. 3 4 Principles of Environmental Toxicology RMA Between December 1942 and the end of the war in 1945 the Arsenal made 155 000 tons of chlorine mustard gas and arsenic trioxide as well as 87 000 tons of chemical products. Private industry was encouraged to lease facilities at RMA after the war. - Julius Hyman and Company JHC began producing pesticides in 1946. - In 1952 Shell Chemical Company acquired JHC and continued to produce agricultural pesticides on-site until 1982. EPA 5 Principles of Environmental Toxicology RMA Shell Chemical made pesticides insecticides and herbicides at the Arsenal until 1982. In the meantime the Army produced nerve agent at the site from 1953 to 1957. EPA One ton canisters of CB gas PMRMA . 6 Principles of Environmental Toxicology RMA - Basin F The Army and private chemical manufacturers disposed of liquid wastes in numerous unlined waste-disposal basins and trenches which allowed the waste to reach the ground water. By 1955 nearby residents noticed crop damage and voiced .

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