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Evaluation of Health Risks due to Heavy Metals in a Rural Population Exposed to Atoyac River Pollution in Puebla, Mexico

机译：由于墨西哥普埃布拉普埃克拉河污染的农村人口中的重金属，对健康风险的评价

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The health risks of Emilio Portes Gil’s population, for the exposition to the Atoyac River pollution in the State of Puebla, was evaluated. The objective was to determine the concentration of nine heavy metals by ingesting water from wells and spri ngs. The chronic daily water intake (CDI), hazard quotient (HQ), hazard index (HI), and carcinogenic risk index (CRI) in adults, teenagers, and children were estimated. The results showed that the concentration of Fe, Al, Ni, and Pb in some of the samples exceeded the recommended standards for human consumption and was significantly higher in the dry season. The hazard index (HI), due to the collective intake of metals, was higher in children (>50% compared to adults), due to the consumption of spring water in the dry season. Risk of noncancerous diseases was not detected in the long term, since the indices did not exceed the unit (reference value). The carcinogenic risk from oral exposure to Cr (CRIchildren = 3.2 × 10−4), was greater than the acceptable limit (1 × 10−6) in the water spring, and Cr and Pb were the main metals that contributed to the potential health risk of the inhabitants. The study showed the risks by the intake of polluted water from the sources of supply in the region, and that the risk is higher in the dry season (>100% compared with rainy season).
机译：埃米利奥·波特斯·吉尔人口的健康风险，为博览会的阿托亚克河的污染在普埃布拉州，进行了评价。其目的是通过从孔中，并SPRI NGS摄取水，以确定九个重金属的浓度。在成人，青少年和儿童的慢性每日水的摄入量（CDI），危害商（HQ），危害指数（HI），和致癌风险指数（CRI）估计。结果表明，铁，铝，镍，铅的一些样品的浓度超过用于人类消费的建议的标准和在干燥的季节是显著高。危险指数（HI），由于进气集体金属，是在儿童较高（> 50％，较成人），由于泉水在旱季的消耗。在长期未检测到非癌性疾病的风险中，由于指数不超过单元（参考值）。从口腔接触致癌危险为Cr（CRIchildren = 3.2×10-4），比在水中弹簧可接受的限度（1×10-6）时，和Cr和Pb是其促进了潜在健康的主要金属居民的风险。该研究表明的风险进行的污染的水从供应该区域的源的进气，和（>与雨季相比100％）的危险是在旱季更高。

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