TAILIEUCHUNG - The Environmental History of DDT and “Silent Spring”

"Over increasingly large areas of the United States spring now comes unheralded by the return of birds, and the early mornings are strangely silent where once they were filled with the beauty of bird song." Rachael Carson, 1962, Silent Spring. | Principles of Environmental Toxicology Silent Spring The Environmental History of DDT and Silent Spring Principles of Environmental Toxicology Instructor Gregory Möller . Over increasingly large areas of the United States spring now comes unheralded by the return of birds and the early mornings are strangely silent where once they were filled with the beauty of bird song. Rachael Carson 1962 Silent Spring 2 Principles of Environmental Toxicology Environmental History Principles of Environmental Toxicology DDT World Health Organization credits DDT with saving 50 000 000 lives. Dichlorodiphenyltrichloroethane Adapted from the review of G. Dewey Keck Graduate Institute for Applied Life Sciences Claremont CA. 3 Principles of Environmental Toxicobgy Success of DDT in Controlling Malaria Country Year Cases Venezuela 1943 1958 8 171 115 800 India 1935 1969 10 000 000 285 962 Italy 1945 1968 411 602 37 Taiwan 1945 1969 1 000 000 9 Principles of Environmental Toxicology The Glory Years for DDT 1945-1960 used to control agricultural pests as well as disease-carrying insects. Other chlorinated insecticides discovered. - Chlordane dieldrin mirex lindane methoxychlor etc. Massive insect-control projects undertaken. - Gypsy moth 4 million acres sprayed 54- 58 Dutch elm disease Fire ant. Growth in DDT production. - 1953 38 million pounds 1957 84 million pounds 1959 125 million pounds. 5 6 1 Principles of Environmental Toxicology Publication of Silent Spring Silent Spring published in 1962. Written by Rachel Carson a respected marine biologist. An expose of the damage to the environment from indiscriminate use of chlorinated pesticides. Principles of Environmental Toxicology Impact of Silent Spring A plea for less harmful methods of insect control and a changed attitude toward nature. - We must abandon the idea of conquering nature and seek instead to work with its processes. Book quickly became a best-seller. - Chemical and pesticide industry alarmed by book s success and .

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