Dichlorodiphenyltrichloroethane (DDT) is an extremely persistent and effective organochloride insecticide that was widely used in the first half of the 20th century to control vectors that spread dysentery, typhus, malaria and other diseases. Although it was banned in most countries by the Stockholm Convention in 2004 due to its extremely harmful effects on human health and the environment, it is still used in many African countries to combat malaria because its benefits outweigh its harm. The process of bioaccumulation leads to an increase in the concentration of DDT residues in animals that are higher in the food chain. DDT is found in all the components of the environment because it can be transported by the atmosphere, and the greatest impact is on soil and water. It does not move in soil, so it remains in surface layers where it is absorbed by plants, and thus by e animals that feed on them. It can evaporate from soil again and enter the atmosphere, and the half-life of DDT in soil is from half a year to even more than 16 years depending on local conditions and soil type. Today, the biggest problem is water contamination because DDT is extremely hydrophobic, so it is absorbed byorganic sediment particles and thus accumulates in the organisms that live in them So far, no suitable alternative has been found that has as high efficiency and a wide range of use as DDT.