Search results
Results from the WOW.Com Content Network
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.
The wrestler applies a front facelock to the opponent and lifts them up with their free arm. The wrestler then falls backwards, driving the opponent vertically down to the mat head first. The Spike DDT is a version of the DDT which is somewhere between a lifting DDT and a brainbuster. It was used by Shinya Hashimoto.
Some studies have shown that although DDE levels have fallen dramatically, eggshell thickness remains 10–12 percent thinner than before DDT was first used. [ 15 ] Some studies have indicated that DDE is an endocrine disruptor [ 16 ] and contributes to breast cancer , but more recent studies provide strong evidence that there is no ...
First it was the eerie images of barrels leaking on the seafloor not far from Catalina Island. Then the shocking realization that the nation’s largest manufacturer of DDT had once used the ...
Paul Hermann Müller, also known as Pauly Mueller [citation needed] (12 January 1899 – 13 October 1965), was a Swiss chemist who received the 1948 Nobel prize in Physiology or Medicine for his 1939 discovery of insecticidal qualities and use of DDT in the control of vector diseases such as malaria and yellow fever.
DDT was the first organic insecticide. It was introduced during WW2, and was widely used. One use was vector control and it was sprayed on open water. It degrades slowly in the environment, and it is lipophilic (fat soluble). It became the first global pollutant, and the first pollutant to accumulate [58] and magnify in the food chain.
Othmar Zeidler (29 August 1850 – 17 June 1911) [1] [2] [Notes 1] was an Austrian chemist credited with the first synthesis of DDT. He was born on 29 August 1850 in Vienna a son of the Viennese pharmacist Franz Zeidler. Othmar's brother, Franz Zeidler Jr. (1851–1901), also became a chemist and would collaborate with him on several projects. [3]
The World Malaria Report 2009 does not report the amount of DDT used in each country, only whether it is used or not. Accordingly, countries are listed as using 0 or "some" DDT. Use statistics for 2009–2011 are available from a report of Stockholm Convention's DDT Export Group [18]