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首页> 外文期刊>Current Science: A Fortnightly Journal of Research >Concentration of selected toxic metals in groundwater and some cereals grown in Shibganj area of Chapai Nawabganj, Rajshahi, Bangladesh
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Concentration of selected toxic metals in groundwater and some cereals grown in Shibganj area of Chapai Nawabganj, Rajshahi, Bangladesh

机译：孟加拉国拉差沙伊Chapai Nawabganj Shibganj地区Shibganj地区地下水和某些谷物中某些有毒金属的浓度

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摘要

This study is an attempt to assess the extent of toxic metals, including Pb, Cd, Cr, Mn and As in groundwater and some cereals collected from Shibganj area of Chapai Nawabganj, Rajshahi, Bangladesh. The chemical results of groundwater show that the mean concentrations of Pb, Cd and Mn exceed the values of WHO, USEPA as well as Bangladesh Drinking Water Standards. However, As content is within the permissible limits in terms of Bangladesh Drinking Water Standards, but exceeds the WHO and USEPA values. Cr is in negligible quantity in the examined groundwater samples. Results reveal wide variation in toxic metal content among the three cereal samples. In general, the mean toxic metal concentrations in cereals (rice, wheat and urid bean) are lower than the respective established safe limits for these elements, except for lead concentration in all samples.
机译：这项研究旨在评估从孟加拉国拉差沙伊州Chapai Nawabganj的Shibganj地区的地下水和一些谷物中采集的有毒金属的含量，包括铅，镉，铬，锰和砷。地下水的化学结果表明，Pb，Cd和Mn的平均浓度超过了WHO，USEPA和孟加拉国饮用水标准的值。但是，砷的含量在孟加拉国饮用水标准的允许范围内，但超过了WHO和USEPA的值。在所检查的地下水样品中，Cr的含量可以忽略不计。结果显示三种谷物样品中有毒金属含量差异很大。通常，谷物（大米，小麦和酸豆）中的平均有毒金属浓度低于这些元素各自的既定安全限值，但所有样品中的铅含量除外。

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