Exposure assessment of persistent organic pollutants and metals in Mexican children

Trejo-Acevedo, Antonio; Dı́az-Barriga, Fernando; Carrizales, Leticia; Domínguez, Gabriela; Costilla, Rogelio; Ize-Lema, Irina; Yarto-Ramírez, Mario; Gavilán-García, Arturo; Mejía-Saavedra, Jesús; Pérez-Maldonado, Iván N.

doi:10.1016/j.chemosphere.2008.10.030

Cited by 97 publications

(64 citation statements)

References 38 publications

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“…Other than background exposure via air, water, and soil [1], the frequent hand-to-mouth activity of children and dermal contact with contaminated toys or other children's products may increase their health risks [2]. Many studies show that children's toys and other children's products contain different kinds of metals.…”

Section: Introductionmentioning

confidence: 99%

Total lead content and its bioaccessibility in base materials of low-cost plastic toys bought on the Beijing market

Kang

Zhu

2013

J Mater Cycles Waste Manag

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The neurological hazards of lead are wellknown. Few studies have focused on lead content in plastic toys, especially in China. Therefore, this study aimed to determine total lead content in low-cost plastic toys bought in Beijing, based on the bioaccessibility (BA) of lead through an in vitro leaching method. A total of 27 of the 72 items (37.5 %) examined exceeded the American toy safety limit (100 mg/kg), but HCl extraction results showed that all the samples met the Chinese standard (\90 mg/kg). The BA of lead ranged from 0.80 to 8.86 %, with averages of 1.53 ± 0.74, 3.65 ± 1.28, 4.09 ± 1.83 and 2.62 ± 0.82 % for diluted HCl and three other leaching solutions, respectively. Our results indicated that the bioavailability risk of lead in plastic toys might be underestimated, as the HCl extraction was regulated under the standard procedures of toy safety testing. Total Pb content measurement combined with RIVM methods would be helpful in efforts to reduce children's exposure to toxic heavy metals.

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Section: Introductionmentioning

confidence: 99%

Total lead content and its bioaccessibility in base materials of low-cost plastic toys bought on the Beijing market

Kang

Zhu

2013

J Mater Cycles Waste Manag

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“…DDT, DDE and DDD are collectively referred to as DDX. Organochlorine pesticides (OCPs) have been recognized as a potential health risk due to their bioaccumulation, recalcitrance to degradation, and potential toxicity to humans and wildlife (Jones and de Voogt, 1999;Turusov et al, 2002;Behrooz et al, 2009;Trejo-Acevedo et al, 2009). Furthermore, DDT and DDE are the known endocrine disrupting compounds (Amaral mendes, 2002).…”

Section: Introductionmentioning

confidence: 99%

Application of zerovalent iron (Fe0) to enhance degradation of HCHs and DDX in soil from a former organochlorine pesticides manufacturing plant

et al. 2010

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“…Actualmente en esta zona se cultivan importantes productos agrícolas de consumo humano como frijol y maíz, sobre los cuales existen reportes que indican la acumulación de arsénico y plomo (González-Dávila et al 2012). Asimismo, se ha reportado la presencia de niveles elevados de plomo y cadmio en sangre, así como arsénico en orina de niños del lugar (Trejo-Acevedo et al 2009). …”

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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Exposure assessment of persistent organic pollutants and metals in Mexican children

Cited by 97 publications

References 38 publications

Total lead content and its bioaccessibility in base materials of low-cost plastic toys bought on the Beijing market

Total lead content and its bioaccessibility in base materials of low-cost plastic toys bought on the Beijing market

Application of zerovalent iron (Fe0) to enhance degradation of HCHs and DDX in soil from a former organochlorine pesticides manufacturing plant

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

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