Arsenic Contamination of Groundwater at Zimapán, Mexiko

Armienta, M. A.; Rodríguez, Ramiro; Aguayo, A.; Ceniceros, N.; Villaseñor, G.; Cruz, O.

doi:10.1007/s100400050111

Cited by 90 publications

(38 citation statements)

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“…Also, a deposition phenomenon is suggested by the direct relation between fine grain and organic matter (Charriau et al 2011), carbonates content, and Al. As during this season is inversely related to organic matter, which may suggest the release of As from sediments with the changing redox conditions produced by the oxidation of organic matter (Armienta et al 1997).…”

Section: Resultsmentioning

confidence: 99%

Impacts of Geochemical and Environmental Factors on Seasonal Variation of Heavy Metals in a Coastal Lagoon Yucatan, Mexico

Árcega-Cabrera

Garza-Pérez

Noreña-Barroso

et al. 2014

Bull Environ Contam Toxicol

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This study investigated the influence of geochemical and environmental factors on seasonal variation in metals in Yucatan's Chelem lagoon. Anthropogenic activities discharge non-treated wastewater directly into it with detrimental environmental consequences. Accordingly, this study established the spatial and temporal patterns of fine grain sediments and concentrations of heavy metals. Multivariate analyses showed fine grain facies deposition, transition sites dominated by fine grain transport, and fine grain erosion sites. Spatial and temporal variations of heavy metals concentration were significant for Cd, Cu, Cr, and Pb. As, Cd, and Sn were as much as 12 times higher than SQuiRTs standards (Buchman 2008). The results indicate that aquifer water is bringing metals from relatively far inland and releasing them into the lagoon. Thus, it appears that the contamination of this lagoon is highly complex and must take into account systemic connections with inland anthropogenic activates and pollution, as well as local factors.

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Section: Resultsmentioning

confidence: 99%

Impacts of Geochemical and Environmental Factors on Seasonal Variation of Heavy Metals in a Coastal Lagoon Yucatan, Mexico

Árcega-Cabrera

Garza-Pérez

Noreña-Barroso

et al. 2014

Bull Environ Contam Toxicol

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“…Otro de los lugares afectados por la contaminación de metales pesados es el municipio de Zimapán en el estado de Hidalgo, considerado un distrito minero desde 1576 (Ongley et al 2007) y donde hasta la década de los 40 se encontraban en activo cerca de 40 hornos de fundición (Armienta et al 1997b). Las altas concentraciones de arsénico presentes en el acuífero de Zimapán, exceden hasta 10 veces los estándares establecidos por la Organización Mundial de la Salud (Ongley et al 2007).…”

Section: Principales Sitios Contaminados Con Metales Pesados En Méxicounclassified

Contaminación Ambiental Por Metales Pesados en México: Problemática Y Estrategias De Fitorremediación

Covarrubias

Cabriales

2017

Rev. Int. Contam. Ambie.

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Palabras clave: remediación, microorganismos, suelos RESUMEN La contaminación por metales pesados en México es un problema que va en aumento debido a la actividad antrópica, específicamente la minería. Los metales contaminantes más importantes en México, dada su toxicidad y abundancia son: mercurio, arsénico, plomo y cromo. Entre los sitios más afectados por las altas concentraciones de metales pesados en suelos se encuentran los estados de Zacatecas, Querétaro, Hidalgo y San Luis Potosí. Una alternativa para contribuir a la solución de este problema, es el uso de especies vegetales para la remoción de metales pesados del suelo o "fitorremediación". Al respecto, en México se han caracterizado especies con capacidad de acumulación de metales, como Scirpus americanus, Typha latifolia, Jatropha dioica, Eichhornia crassipes y Amaranthus hybridus. Una estrategia para mejorar el proceso de fitoextracción de metales es a través de la inoculación de microorganismos del suelo. Bacterias de los géneros Rhizobium, Agrobacterium, Arthrobacter, Microbacterium, Curtobacterium, Rhodococcus, Xanthomonas y Pseudomonas, han mostrado resultados promisorios al ser empleados en estos tratamientos, así como el uso de hongos micorrízicos arbusculares específicamente del género Glomus. Sin embargo, son necesarios más estudios para optimizar los sistemas de tratamiento basados en la selección de las mejores plantas y bacterias endémicas de los sitios contaminados.Key words: remediation, microorganisms, soils ABSTRACT Heavy metal pollution is a growing problem due to anthropic activities such as mining. The most hazardous metals in Mexico are mercury, arsenic, lead, and chromium. States like Zacatecas, Querétaro, Hidalgo, and San Luis Potosi have been affected by the pollution of soils with heavy metals. In this sense, phytoremediation has emerged as an alternative to solve this problem. In Mexico, plant species with metal accumulative capacity have been identified. These include Scirpus americanus, Typha latifolia, Jatropha dioica, Eichhornia crassipes and Amaranthus hybridus. Metal phytoextraction could be improved by coupling bioaugmentation of soil microorganism. Bacteria from the genus Rhizobium, Agrobacterium, Arthrobacter, Microbacterium, Curtobacterium, Rhodococcus, Xanthomonas and Pseudomonas, have shown promising results enhancing Rev. Int. Contam. Ambie. 33 (Especial Biotecnología e ingeniería ambiental) 7-21, 2017

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“…Arsenic levels in groundwater are recorded as high as 1100 μg/L [73,74], and shallow wells contaminated by mine tailings and fumes emanating from the smelters reportedly have As concentrations as high as 530 μg/L [75]. Elevated levels of natural As are also reported in groundwater from the unconfined alluvial aquifers in the region around Lagunera, causing adverse health effects in both people and livestocks [75].…”

Section: Latin Americamentioning

confidence: 99%

Natural Arsenic in Global Groundwaters: Distribution and Geochemical Triggers for Mobilization

et al. 2016

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The elevated concentration of arsenic (As) in the groundwaters of many countries worldwide has received much attention during recent decades. This article presents an overview of the natural geochemical processes that mobilize As from aquifer sediments into groundwater and provides a concise description of the distribution of As in different global groundwater systems, with an emphasis on the highly vulnerable regions of Southeast Asia, the USA, Latin America, and Europe. Natural biogeochemical processes and anthropogenic activities may lead to the contamination of groundwaters by increased As concentrations. The primary source of As in groundwater is predominantly natural (geogenic) and mobilized through complex biogeochemical interactions within various aquifer solids and water. Sulfide minerals such as arsenopyrite and As-substituted pyrite, as well as other sulfide minerals, are susceptible to oxidation in the near-surface environment and quantitatively release significant quantities of As in the sediments. The geochemistry of As generally is a function of its multiple oxidation states, speciation, and redox transformation. The reductive dissolution of As-bearing Fe(III) oxides and sulfide oxidation are the most common and significant geochemical triggers that release As from aquifer sediments into groundwaters. The mobilization of As in groundwater is controlled by adsorption onto metal oxyhydroxides and clay minerals. According to recent estimates, more than 130 million people worldwide potentially are exposed to As in drinking water at levels above the World Health Organization's (WHO's) guideline value of 10 μg/L. Hence, community education to strengthen public awareness, the involvement and capacity building of local stakeholders in targeting As-safe aquifers, and direct action and implementation of best practices in identifying safe groundwater sources for the installation of safe drinking water wells through action and enforcement by local governments and international water sector professionals are urgent necessities for sustainable As mitigation on a global scale.

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Arsenic Contamination of Groundwater at Zimapán, Mexiko

Cited by 90 publications

References 0 publications

Impacts of Geochemical and Environmental Factors on Seasonal Variation of Heavy Metals in a Coastal Lagoon Yucatan, Mexico

Impacts of Geochemical and Environmental Factors on Seasonal Variation of Heavy Metals in a Coastal Lagoon Yucatan, Mexico

Contaminación Ambiental Por Metales Pesados en México: Problemática Y Estrategias De Fitorremediación

Natural Arsenic in Global Groundwaters: Distribution and Geochemical Triggers for Mobilization

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