Place of DDT pesticide
DDT pesticide is a powerful insecticide. This pesticide is banned in many countries because of its toxicity, the ability to accumulate in animal and human tissues, and pollution of the environment. From chemical standpoint DDT pesticide is dichlorodiphenyltrichloroethane, its formula is C14H9Cl5. This compound is a colorless, odorless substance with potent insect killing properties. DDT pesticide is extremely toxic to animals and humans. Dichlorodiphenyltrichloroethane pesticide is a contact nerve poison. Initially, DDT pesticide was used to control typhus fever spread by lice. Later, DDT pesticide was used to control malaria borne by mosquitos. This pesticide was also extensively used as an insecticide in agriculture. Research of DDT pesticide demonstrated its persistence in the environment and its capacity for accumulation in animal tissues. This pesticide compound can imitate hormonal activity and derange endocrine systems in birds, animals, and humans.
History of DDT pesticide
This compound appeared as the first synthetic insecticide in the 1940s. At first the substance was used against vectors of some human diseases and for insect control in farms, gardens, and homes. However, the wide global use of DDT pesticide resulted in the development of resistance among numerous species of insects.
Health and environmental concerns
In the 1950s and 1960s the first regulatory actions to proscribe numerous of DDT pesticide applications were undertaken. The reasons were countless cases of detrimental environmental effects and intoxications. Research results gave rise to increasing public concerns associated with the hazards of incorrect use of this pesticide and the necessity for improved monitoring. The pesticide was canceled as a consequence of its unfavorable environmental effects on wildlife and health risks for humans. This pesticide is considered as a possible carcinogen. The pesticide produces detrimental effects on liver, kidneys, nervous and immune systems. The compound is a strong endocrine disrupter. The substance is persistent in soils, can drift long distances in the atmosphere, and may accumulate in fatty tissue. After the use of DDT pesticide was stopped in the United States, the concentration of this chemical in the environment has decreased; however, due to its persistence, dangerous residues from the past use are still detected.
Current position of DDT pesticide
It is significant to regulate the use of this pesticide. Many countries united together to elaborate international restrictions on the compound. The adopted Convention presupposes limited exemption for the application of this insecticide to control mosquitoes which can carry malaria. The World Health Organization supports cautious indoor use of this insecticide in African countries because malaria still remains their important health problem. The case is that benefits of this pesticide here outweigh the risks for health and environment. Countries themselves decide to use or not to use this pesticide. The general goal is to use DDT only against the background of Integrated Vector Management programs, avoiding its use in agricultural sectors.