The Banning of DDT

Paper Summary:

This paper examines the dangers of the notorious chemical DDT and shows why it should be banned by the year 2007, as environmentalist groups have aimed to do. The paper covers issues relating to the chemical including a growing resistance to its use, effective alternatives and the extent of its environmental destruction.

From the Paper:

"The environmental damage that DDT causes is enough in itself to justify a total ban. DDT is a very persistent chemical and because if its molecular structure breaks down very slowly within nature. There are rough estimates that the half-life of DDT is around 12-15 years depending on the climate it is exposed to. This is partly why it is so dangerous in the environment. Another factor is that DDT is able to travel great distances, and is found every where throughout the globe. This is a strange and disturbing discovery because some places have never been sprayed before, such as Antarctica and the ocean bottoms. The spraying of DDT has unintentionally killed some main predators of the mosquito. Dragonfly larva hunt mosquito larva in puddles and stagnant ponds and also the adult dragonfly will hunt adult mosquitoes further reducing their numbers. DDT has worked in the past but as it destroyed fragile ecosystems it has now increased mosquito numbers. DDT is also the linked chemical responsible for the decline in the population of the Bald eagle and the Peregrine falcon. These two species are at the top of the food chain, thus their prey usually have been exposed to DDT."

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