DDT (from its trivial name, dichlorodiphenyltrichloroethane) is one of the most well-known synthetic pesticides. It is a chemical with a long, unique, and controversial history.
First synthesized in 1874, DDT's insecticidal properties were not discovered until 1939. In the second half of World War II, it was used with great effect to control mosquitoes spreading malaria and lice transmitting typhus among civilians and troops, resulting in dramatic reductions in the incidence of both diseases. The Swiss chemist Paul Hermann Müller was awarded the Nobel Prize in Physiology or Medicine in 1948 "for his discovery of the high efficiency of DDT as a contact poison against several arthropods."[2] After the war, DDT was made available for use as an agricultural insecticide, and soon its production and use skyrocketed.[3]
In 1962, Silent Spring by American biologist Rachel Carson was published. The book catalogued the environmental impacts of the indiscriminate spraying of DDT in the US and questioned the logic of releasing large amounts of chemicals into the environment without fully understanding their effects on ecology or human health. The book suggested that DDT and other pesticides may cause cancer and that their agricultural use was a threat to wildlife, particularly birds. Its publication was one of the signature events in the birth of the environmental movement. Silent Spring resulted in a large public outcry that eventually led to most uses of DDT being banned in the US in 1972.[4] DDT was subsequently banned for agricultural use worldwide under the Stockholm Convention, but its limited use in disease vector control continues to this day and remains controversial.[5]
Along with the passage of the Endangered Species Act, the US ban on DDT is cited by scientists as a major factor in the comeback of the bald eagle, the National bird of the United States[6], from near-extinction in the contiguous US.[7]
pesticide used heavily in the 50' it has saved many lives from maleria and hunger but turned out to be extrimly residual causing many ecological promlems
Rh factor is named after the Rhesus monkey which was the source of testing. It refers to the plus or minus after one's blood type which determines compatibility.
The concentration of DDT in the fish is 430,000 times greater than the concentration of DDT in the water.
Eagle populations recovered after the ban on DDT.
DDT or dichlorodiphenyltrichloroethane is a colorless crystalline substance that is used as an insecticide. DDT and some related compounds are primarily stored in fats and other organic solvents.
DDT is used as an insecticide which kills on contact. It is extremely harmful and was banned in United States since 1972. Before it was banned, it was used to protect crops from insect damage, but it killed too many animals and plants, while insect populations grew more and more resistant to DDT. This led to ban in DDT in many countries.
The initials DDT stand for a type of pesticide. The full name is dichlorodiphenyltrichloroethane.
ddt stands for DichloroDiphenylTrichloroethane. It is a synthetic pesticide
The initials CIW stand for Certified Internet Webmaster which is a type of software and program for private, executive and corporate users on the Internet.
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ddt in wrestling stands for direct diving takedown
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The initials "PBR" stand for the perscriber of the medication.
HP Lovecraft's initials stand for Howard Phillips.
On 1972 DDT stands for Dichloro-Diphenyl-Trichloroethanedichlorodiphenyltrichloroethane, it is an insecticide that is toxic to people and animals.
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The initials PBR can stand for many things. One thing that they stand for is pro bull riding.