Tonic water and is used mostly for its flavor. As a result of the lower quinine content, it is less bitter, and is also usually sweetened, often with high-fructose corn syrup or sugar. Some manufacturers also produce diet (or slimline) tonic water, which may contain artificial sweeteners such as aspartame. Traditional-style tonic water with little more than quinine and carbonated water is less common but may be preferred by those who desire the bitter flavor. In the United States, the US Food and Drug Administration (FDA) limits the quinine content in tonic water to 83 ppm (83 mg per liter if calculated
History of malaria opened in 1962 by "Silent Spring", written by American biologist Rachel Carson, which launched the environmental movement in the West. The book catalogued the environmental impacts of indiscriminate DDT spraying and suggested that DDT and other pesticides cause cancer and that their agricultural use was a threat to wildlife. The U.S. Agency for International Development supports indoor DDT spraying as a vital component of malaria control programs and has initiated DDT and other insecticide spraying programs in tropical countries. Other insecticides are available for mosquito control, as well as physical measures, such as draining the wetland breeding grounds and the