Spatial Distribution of Heavy Metals in Top Soils Around the Industrial Facilities of Cromatos de México, Tultitlan Mexico

作者: Ofelia Morton-Bermea , Elizabeth Hernández-Álvarez , Rufino Lozano , Janin Guzmán-Morales , Gerardo Martínez

DOI: 10.1007/S00128-010-0124-8

关键词: Environmental scienceEnvironmental chemistryChromiumPollutionTopsoilEcotoxicologySoil contaminationSpatial distributionSoil classificationSoil waterToxicologyHealth, Toxicology and MutagenesisGeneral Medicine

摘要: The environmental damage caused by industrial activities in Cromatos de Mexico, (Tultitlan, Mexico) has been evaluated terms of heavy metal concentrations topsoils the surrounding area. lead, copper and zinc demonstrate a significant enrichment with respect to unpolluted levels. Their maximum factors are 37.7, 21.1 9.6 mg kg−1, respectively; such increase is related traffic emissions. Nickel show no difference analyzed samples. Total chromium decrease distance from facilities, ranging 15 1,837 kg−1. (total), background values reach up 40.8 In spite this pronounced increase, only three samples (VI) over 0.5 kg−1 (instrumental detection limit) do not exceed recommended Mexican official norm. current results that present studied area does represent serious health risks zone, nevertheless, it necessary consider oxidation (III) determinate changes redox and/or pH conditions which would imply impacts upon its toxic risk. This study suggests waste material generated during Mexico represents relevant pollution source for even 30 years after closure facilities.

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