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A B C D E F G H I J K L M N O P Q R S T U V W X Y Z ALL You Have Viewed Too Many Free Essays, Term Papers, and Book Reports. DDT DDT DDT and The Environment: The Effects on the Ecosystem As earth's population grows so does the demand for food, and the use of pesticides has become essential in meeting this demand. The first important synthetic organic pesticide was a chlorinated hydrocarbon, dichlorodiphenyltrichloroethane or DDT. DDT was discovered in 1939 by Swiss chemist Paul Müeller. In its early days, DDT was a popular pesticide because it was toxic to a wide range of insect pests, yet it appeared to have low toxicity to mammals. DDT was also persistent, which meant the pesticide didn't break down rapidly in the environment and therefore did not need to be reapplied often and since DDT was insoluble it did not wash off by rain or other weather conditions. Although gradually throughout time it was discovered that many insects had developed resistance to DDT, and it was discovered that DDT did in fact pose to be harmful to the ecosystem. This discovery created wide public interest and made people aware that chemicals were polluting the environment. As a resu! lt DDT was banned for use in North America and other countries in the early 1970’s. Though pesticides, such as DDT, may decrease the number of insects, throughout history ddt, environment, pesticide, food, chemical, soil, pesticides, birds, water, insects, effects, chain, body, animals, higher, effect, discovered, chemicals, because, wildlife, very, time, therefore, plants, negative, humans, exposure, amounts, although, able, within, toxicity, top, thus, through, society, populations, persistent, often, levels, however, first, developed, break, toxic, stored, species, since, result, quantities Word Count: 2159 Acceptance_Essays American_History Anatomy_&_Physiology Animal_Science_&_Zoology Anthropology Architecture Art Astronomy Aviation Biographies Book_Reports Business Computers Creative_Writing Current_Events Economics Education Engineering English Environmental_Science Ethics European_History Film_&_TV Foreign_Languages Geography Government_&_Politics Health_&_Beauty History_Other Human_Sexuality Legal_Issues Marketing Mathematics Medicine Miscellaneous Music Mythology Philosophy Physics Poetry Political_Science Psychology Religion Science Shakespeare Social_Issues Sociology Speech Sports_&_Recreation Supernatural Technology Theater Theses_&_Dissertations

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