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首页> 外文期刊>Revista internacional de contaminación ambiental >Contenido de Cd y Pb en suelo y plantas de diferentes cultivos irrigados con aguas residuales en el Valle del Mezquital, Hidalgo, México
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Contenido de Cd y Pb en suelo y plantas de diferentes cultivos irrigados con aguas residuales en el Valle del Mezquital, Hidalgo, México

机译：墨西哥伊达尔戈的梅斯基塔尔谷地废水灌溉的不同作物的土壤和植物中的镉和铅含量

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摘要

Heavy metals have had many industrial uses for hundreds of years and consequently these elements can be found in dangerous concentrations in the environment. Two of the most toxic metals are Cd and Zn that cause various human diseases. The Mesquital Valley region in the state of Hidalgo is characterized by the use of wastewater for agricultural purposes, but it is likely that these waters contain heavy metals that may be absorbed by plants through irrigation water. The aim of this work was to determine the Cd and Pb amount and their mobility within the plant. Two maize, two sunflower and one alfalfa variety including soil were sampled. The plants were cut and divided into three equal thirds and the concentrations of the two metals were determined in the soil and in each of the fractions in which the plant was divided. Corn Cd values were statistically equal in each of the three thirds (0.06 mg/kg), this value being lower than that observed in soil (0.09 mg/kg). The same behavior was observed in the case of Pb. The alfalfa Cd concentration in the plant was higher than that found in the soil (0.07 mg/kg in the first third of the plant and 0.03 mg/kg soil), while the lowest concentrations for both metals were found in the sunflower.
机译：重金属在工业上已有数百年的历史，因此这些元素可以在环境中以危险浓度被发现。毒性最高的两种金属是Cd和Zn，它们会导致多种人类疾病。伊达尔戈州的麦斯基谷山谷地区的特点是将废水用于农业目的，但是这些水可能含有重金属，植物可能会通过灌溉水吸收这些重金属。这项工作的目的是确定镉和铅的含量及其在工厂中的迁移率。采样了两种玉米，两种向日葵和一种苜蓿，包括土壤。将植物切开并分成三等分，并测定土壤中和植物所分成的每个部分中两种金属的浓度。三分之三的玉米Cd值在统计学上均相等（0.06 mg / kg），该值低于在土壤中观察到的Cd（0.09 mg / kg）。在Pb的情况下观察到相同的行为。植物中的苜蓿Cd浓度高于土壤中的浓度（植物前三分之一为0.07 mg / kg，土壤中为0.03 mg / kg），而向日葵中两种金属的浓度最低。

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