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DDT was first synthesized in 1874 by the Austrian chemist Othmar Zeidler. DDT's insecticidal action was discovered by the Swiss chemist Paul Hermann Müller in 1939. DDT was used in the second half of World War II to limit the spread of the insect-borne diseases malaria and typhus among civilians and troops.
Fish may eat many of these organisms, causing the DDT and PCBs to accumulate in fish tissue. Fish-eating birds, marine mammals, and birds of prey that feed on both accumulate more of the toxins. [6] Since 1985, fish consumption advisories and health warnings have been posted in Southern California because of elevated DDT and PCB levels.
The use of DDT in the United States was banned in 1972, except for a limited exemption for public health uses. Public concern about the usage of DDT was largely influenced by the book, Silent Spring, written by Rachel Carson. [9] The ban on DDT is cited by scientists as a major factor in the comeback of the bald eagle in the continental United ...
J. Gordon Edwards (August 24, 1919 – July 19, 2004) was an American entomologist and proponent of the use and safety of the pesticide DDT.He was professor of entomology at San Jose State University for 40 years, and namesake to the university's entomology museum.
DDT has also been known to kill beneficial insects, such as wasps that kill caterpillars that, unchecked, destroy thatched roofs. [14] As a result, Mozambique's chief of infectious disease control, Avertino Barreto, says that resistance to DDT spraying is "homegrown", not due to "pressure from environmentalists". "They only want us to use DDT ...
Diazinon is a contact insecticide which kills insects by altering normal neurotransmission within the nervous system of the insect. As mentioned above, diazinon inhibits the enzyme acetylcholinesterase (AChE), which hydrolyzes the neurotransmitter acetylcholine (ACh) in cholinergic synapses and neuromuscular junctions .
Luigi Mangione, who authorities accuse of murdering UnitedHealthcare CEO Brian Thompson, allegedly wrote in a notebook that he considered bombing Manhattan to carry out the killing but did not ...
Silent Spring is an environmental science book by Rachel Carson. [1] Published on September 27, 1962, the book documented the environmental harm caused by the indiscriminate use of DDT, a pesticide used by soldiers during World War II.