[Impact of vector control on the aquatic environment].

Environmental impact of pesticides used in vector control programmes against Onchocerciasis, Trypanosomiasis, Malaria and Bilharziasis, depends on chemicals used and control strategies. Dealing with the experience of the Onchocerciasis control Programme in West Africa, we introduce in what perspective, it is possible to establish an environmental monitoring programme in order to minimize the impact of treatments. In tropical Africa, vector control chemicals pressure, decreased in the years 1980.