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

Content Provider	Springer Nature Link
Author	Morton Bermea, Ofelia Hernández Álvarez, Elizabeth Loza, Rufi Guzmán Morales, Janin Martínez, Gerardo
Copyright Year	2010
Abstract	The environmental damage caused by industrial activities in Cromatos de México, (Tultitlán, México) has been evaluated in terms of heavy metal concentrations in topsoils of the surrounding area. The concentrations of lead, copper and zinc demonstrate a significant enrichment with respect to unpolluted levels. Their maximum enrichment factors are 37.7, 21.1 and 9.6 mg kg−1, respectively; such increase is related to traffic emissions. Nickel concentrations show no significant difference in the analyzed samples. Total chromium concentrations show a significant decrease with distance from the industrial facilities, ranging from 15 to 1,837 mg kg−1. The enrichment factors of chromium (total), with respect to the background values reach up to 40.8 mg kg−1. In spite of this pronounced increase, only three analyzed samples show chromium (VI) concentrations over 0.5 mg kg−1 (instrumental detection limit) and do not exceed the values recommended by the Mexican official norm. The current results show that the chromium present in the studied area does not represent serious health risks and environmental damage in the zone, nevertheless, it is necessary to consider that the oxidation of chromium (III) is determinate by changes in redox and/or pH conditions which would imply significant impacts upon its toxic risk. This study suggests that the waste material generated during the industrial activities of Cromatos de Mexico represents a relevant metal pollution source for the area even 30 years after the closure of the industrial facilities.
Starting Page	520
Ending Page	524
Page Count	5
File Format	PDF
ISSN	00074861
Journal	Bulletin of Environmental Contamination and Toxicology
Volume Number	85
Issue Number	5
e-ISSN	14320800
Language	English
Publisher	Springer-Verlag
Publisher Date	2010-10-09
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Chromium Pollution Mexico Industrial facilities Waste Water Technology / Water Pollution Control / Water Management / Aquatic Pollution Environmental Chemistry Soil Science & Conservation Ecotoxicology Environmental Health
Content Type	Text
Resource Type	Article
Subject	Health, Toxicology and Mutagenesis Pollution Medicine Toxicology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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