CHROMIUM POLLUTION EVALUATION IN GROUNDWATERS OF NORTH MEXICO CITY
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Abstract
Groundwater pollution by soluble chromium species was surveyed throughout a one-year, monthly analysis of 38 wells at the "Municipio de Tultitlán", north of México City. The chosen wells were located in the vicinity of the industrial disposal site of the former plant "Cromatos de México, S.A.", where 75,000 tons of waste material were inadequately confined. The study showed a considerable contamination of the wells closest to the site, due to leaching of chromate salts found in the disposed wastes. The high amount of water consumption by the surrounding industries, is preventing chromium dispersion.
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