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La pollution des eaux souterraines en Lorraine : le cas des nitrates

Abstract : aThe pollution of waters by the nitrates can have three origins: agricultural, industrial, domestic. it results from a main process, the mineralization of organic nitrogen, that is to say its transformation in soluble nitrogen. Because of different agents (climate, vegetation, etc) the nitrates are more or less drawled away to the phreatic sheets. In Lorraine, the analyses of underground waters show the irregular but general progression of the nitrates between 1976 and 1989. The examination of polluted areas will allow us to estimate the part of physical factor ( prheatic sheets vulnerability) and human factor ( nitrogenous throw ) in pollution phenomena.
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Submitted on : Tuesday, April 24, 2018 - 4:06:17 PM
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Annie Turin. La pollution des eaux souterraines en Lorraine : le cas des nitrates. Géographie. Université Nancy 2, 1991. Français. ⟨NNT : 1991NAN21010⟩. ⟨tel-01776783⟩



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