Contamination of the Conchos River in Mexico: does it pose a health risk to local residents?

International Journal of Environmental Research and Public Health
Hector Rubio-AriasMelida Gutierrez

Abstract

Presently, water contamination issues are of great concern worldwide. Mexico has not escaped this environmental problem, which negatively affects aquifers, water bodies and biodiversity; but most of all, public health. The objective was to determine the level of water contamination in six tributaries of the Conchos River and to relate their levels to human health risks. Bimonthly samples were obtained from each location during 2005 and 2006. Physical-chemical variables (temperature, pH, electrical conductivity (EC), Total solids and total nitrogen) as well as heavy metals (As, Cr, Cu, Fe, Mn, Ni, V, Zn, and Li) were determined. The statistical analysis considered yearly, monthly, and location effects, and their interactions. Temperatures differed only as a function of the sampling month (P < 0.001) and the pH was different for years (P = 0.006), months (P < 0.001) and the interaction years x months (P = 0.018). The EC was different for each location (P < 0.001), total solids did not change and total nitrogen was different for years (P < 0.001), months (P < 0.001) and the interaction years x months (P < 0.001). The As concentration was different for months (P = 0.008) and the highest concentration was detected in February sample...Continue Reading

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Citations

Jul 22, 2011·International Journal of Environmental Research and Public Health·Hector Rubio-AriasOskar Palacios
Jul 4, 2012·International Journal of Environmental Research and Public Health·Hector Rubio-AriasAdan Pinales-Munguia
Sep 2, 2011·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Myrna NevárezJochen Bundschuh
Nov 20, 2020·The Science of the Total Environment·C Cristina Osuna-MartínezFederico Páez-Osuna

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