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DDT was replaced primarily by methoxychlor, which contains about 50% DMDT.
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Carnivorous birds that fed on organisms exposed to this chemical produced fragile eggs The chemical is?
DDT
Is ddt a mixture or compound?
Chlorine is an elemental gas, but is technically a compound in its naturally occurring state because, like many gases, it occurs as CL2, rather than Cl. It can be part of a mixture if it is in solution with other gases or liquids.
When was ddt first made?
DDT, dichlorodiphenyltrichloroethane, was first synthesized in 1874, but the insect killing properties of this chemical were not realized until 1939. It was eventually banned in the US and some other countries because of the hazards it poses to other life. A link can be found below.
What body tissue is DDT stored in humans?
DDT can be stored in fatty tissues of humans. In women who are pregnant, DDT exposure can occur even in the fetus.
Why did DDT stop being used?
"The pesticide DDT was banned in the United States in 1972 because it contributed to the near extinction of birds, including the bald eagle and the peregrine falcon. DDT is a persistent chemical that becomes concentrated in animal tissues, rising in concentration in animals that are higher in the food chain. It is particularly toxic to fish, aquatic invertebrates and insects (including some that are beneficial). While not immediately toxic to birds, DDT causes long-term reproductive problems by causing eggshells to weaken and crack, threatening the survival of many bird species. Because of its chemical nature, once DDT is applied in a field or other environment, it remains in an active form for decades. People throughout the United States still carry DDT and its metabolites in their bodies, 30 years after the pesticide was banned in this country. Most other developed countries have also banned DDT, but it is still used in many developing countries."Letter to U.S. Agency for International Development (AID) [PDF document] -- April 2004 letter from Environmental Defense to U.S. AID, urging the agency to consider limited indoor use of DDT for malaria control in regions where malaria is spread by indoor-dwelling mosquitoes until better alternatives are developed.
What are the four elements in DDT?
The chemical formula of DDT is C14H9Cl5.
What do you mean by DDT?
DDT is a strong pesticide: dichlorodiphenyltrichloroethane, with the chemical formula C14H9Cl5.
Why is DDT not a banned chemical in North America?
After my knowledge the use of DDT is banned in USA, with the exception of use for health.
What does dichlorodiphenyltrichloroethane mean?
Dichlorodiphenyltrichloroethane is the chemical name for the insecticide DDT
Carnivorous birds that fed on organisms exposed to this chemical produced fragile eggs The chemical is?
DDT
Who female biologist wrote about the dangers of the chemical ddt?
Racheal Carson
Who was a biologist who wrote about the dangers of the chemical DDT and other pesticides?
CARSON
What could make the Bald Eagle extinct?
a chemical called DDT.
What chemical did author Rachel Carson speak out against in her book?
DDT
What are the chemical elements are common to both DDT and freon?
Chlorine and Fluorine
What chemical contributed to ecological problems in the 1950's - 1970's?
DDT?
What chemicals have been banned in most countries of the world?
Chemical weapons and DDT.
