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In New Zealand in the 1930s, farmers reportedly had trouble with exploding trousers as a result of attempts to control ragwort, an agricultural weed. [1] Farmers had been spraying sodium chlorate, a government recommended weedkiller, onto the ragwort, and some of the spray had ended up on their clothes. Sodium chlorate is a strong oxidizing ...
Pesticides can enter the body through inhalation of aerosols, dust and vapor that contain pesticides; through oral exposure by consuming food/water; and through skin exposure by direct contact. [96] Pesticides secrete into soils and groundwater which can end up in drinking water, and pesticide spray can drift and pollute the air.
The development of organophosphate insecticides dates back to the 1930s and is generally credited to Gerhard Schrader. [28] At the time pesticides were largely limited to arsenic salts (calcium arsenate, lead arsenate and Paris green) [29] or pyrethrin plant extracts, all of which had major problems. [30]
In 1931 Hickson & Welch Ltd was founded, from the site that had been destroyed in 1930. From 1944 the company made DDT, becoming the UK's largest manufacturer. Hickson and Welch (Holdings) Ltd was incorporated on 28 September 1951. It made dyestuffs, DDT , and timber preservatives. It had the subsidiaries Hickson & Welch Ltd, and Hickson's ...
Pentachlorophenol (PCP) is an organochlorine compound used as a pesticide and a disinfectant. First produced in the 1930s, it is marketed under many trade names. [5] It can be found as pure PCP, or as the sodium salt of PCP, the latter of which dissolves easily in water. It can be biodegraded by some bacteria, including Sphingobium ...
Monsanto's potato plants producing Bt toxin (genetically modified to make a crystalline insecticidal protein from Bacillus thuringiensis) are approved for sale by the Environmental Protection Agency, after having approved by the U.S. FDA, making it the first pesticide-producing genetically modified crop to be approved in the United States. [28 ...
Zyklon B (German: [tsyˈkloːn ˈbeː] ⓘ; translated Cyclone B) was the trade name of a cyanide-based pesticide invented in Germany in the early 1920s. It consists of hydrogen cyanide (prussic acid), as well as a cautionary eye irritant and one of several adsorbents such as diatomaceous earth .
Nine killed by apple cider contaminated by a pesticide. [2] 1930, United States. Jake Leg poisoning. 1936, Japan. A massive food poisoning incident occurred when many prepackaged rice cakes, manufactured by Miyoshino confectionery shop, were supplied to Hamamatsu First Junior High School. On May 11, 2,072 people were afflicted, resulting in 47 ...