The studies that realise the organisms in charge of the maintenance of the environmental cleaning have determined that the regions and zones which it affects plus the contamination of the water are the following: the rivers Guaire and Tuy the tributary lake of Valencia and rivers the valleys of the rivers Tocuyo and Aroa the rivers Unare, Neveri, Apple orchards, Guarapiche, and its affluents the lake of Maracaibo the coastal waters of south-east of the gulf of Venezuela; as product of petroleum spills, fall of industrial and petrochemical remainders. It insists on to indicate, that in this environmental problem the constant increase of waters served as domestic origin is important, in which there are excess of organic rest, amounts of detergents and other residuals that transform the balance of waters, generating in her contamination that worsens with the presence of microorganisms. All these circumstances cause serious damage. One is due to take into account that the varied animal species and vegetables that are developed in the aquatic habitats are not there for serving simply as adornment, they daily act as of oxidation of waters and to clean them of injurious and strange organisms to that habitat. What it will not be obtained, if by toxic remainders, the fauna and the flora disappear. But the most determining reason for the contamination of waters is the concentration of population in the urban zones. Before this reality the indicated authors ask Like defending to us? To the respect they indicate that to control the negative effects of the contamination of waters she is made necessary to front attack the dangers that it contributes with three specific things but: 1. Programmings and development official with implementation of investigation of the zones but damaged by the contamination and the zones of high-priority attention.
2. Promulgation of laws of environmental protection, like specific legal instruments and the spreading of such laws, to extend the education of the citizenship in the natural resource and environmental conservation.