Реферат

Реферат на тему Pesticides Essay Research Paper There are 25

Работа добавлена на сайт bukvasha.net: 2015-06-14

Поможем написать учебную работу

Если у вас возникли сложности с курсовой, контрольной, дипломной, рефератом, отчетом по практике, научно-исследовательской и любой другой работой - мы готовы помочь.

Предоплата всего

от 25%

Подписываем

договор

Выберите тип работы:

Скидка 25% при заказе до 11.11.2024


Pesticides Essay, Research Paper

There are 2.5 billion pounds of pesticides being applied to agricultural

products each year in the United States. This is ten times more than was applied

forty years ago. It is still unknown as to what type of exact effects these

chemicals may have on individuals. Some farmers that have been using pesticides

in their fields and developed leukemia are finding that the cause of their

disease is from inhaling pesticides. These chemicals are still in use today and

most of them have never been tested for the short or long-term effects that they

may have on humans. Each year there are 10,000 pesticide related poisonings. On

July 4th 1985, over 300 Californians became sick after eating watermelons

treated with the pesticide tenik. Testing supermarket produce is a way of

determining the amount of exposure the consumer receives through common produce

like carrots, tomatoes and lettuce. 44% of foods that were tested in

supermarkets were found to have some traces of pesticide residue on them. Of all

the pesticides found, nineteen of them were a pesticide called DDT. DDT was

banned in this country 12 years prior to the testing. It was believed that these

chemicals might have entered this country from another country that doesn?t

have pesticide restrictions as the U.S. does. Pesticides are contaminating the

Earth?s water supplies. There are seventeen pesticides found in twenty-three

state?s water supplies right now. Scientists at Cornell University conclude

that 99% of pesticides miss the intended source and find their way into the

water, air and soil. Most of the pollution isn?t strong enough to create an

immediate impact on humans so the wildlife is the primary target to these

contaminates. Animals such as the European Starling birds are constantly being

tested and found that they are greatly affected both behaviorally and

psychologically. Farming practices that do not use pesticides/herbicides are

slowly becoming introduced bit biologically created pesticides are not nearly as

productive as found in preliminary testing. Biotechnology has shown to have

successfully resisted pests in plants that were destroyed by pesticides but

still hasn?t proven itself as a better alternative. William Liebhardt Ph.D. is

an Agricultural Specialist at the University of California, Davis and he says,

?When you start spraying with pesticides, you disrupt the natural balance that

exists in nature. As a result, you end up killing beneficial insects, then

insects that were not a problem become problems and this happens repeatedly?

requiring more and more spraying. Spraying crops with chemicals may not have an

immediate effect on humans but the environment needs to be preserved for years

to come in order for crop production to remain a vital link to the human diet.

By not treating the crops, you face a possible situation of a major reduction in

agricultural produce. The non-chemical approach may be the answer but it is

obvious that there needs to be a lot more testing done on these products as well

and they are not economically reasonable yet. But then paying more now is a

small price to pay to have fewer problems later.


1. Курсовая Рынок зерна как рынок совершенной конкуренции
2. Реферат Манипуляция как форма общения
3. Статья Пеларгония
4. Биография на тему Іван Кочерга
5. Реферат на тему Ritalin Essay Research Paper Ritalin is a
6. Реферат Князь Святослав Завойовник
7. Реферат на тему История медной промышленности Урала XVIII XX вв
8. Контрольная работа на тему Калининский район Уфы
9. Реферат на тему История Татарстана в XIX веке
10. Курсовая Металлургический комплекс Кольского полуострова