Assessing risk of heavy metals from consuming food grown on sewage irrigated soils and food chain transfer
Assessing risk of heavy metals from consuming food grown on sewage irrigated soils and food chain transfer
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DOI：
10.1016/j.ecoenv.2007.04.013
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发表时间：
2008-03-01
影响因子：
6.8
通讯作者：
Raj, D. Samuel Suman
中科院分区：
文献类型：
--
作者：
Chary, N. Sridhara;Kamala, C. T.;Raj, D. Samuel Suman
污水和废水灌溉造成的土壤重金属污染由于其潜在的风险而引起人们的关注。在本研究中，木寺河及其周围地区的重金属污染进行了评估。研究领域进行了评估，锌，铬，铜，镍，钴和铅的土壤，牧草，牛奶从牛，叶和非叶类蔬菜。土壤的分配模式揭示了高水平的锌，铬，铜与不稳定的部分，使他们更移动的和植物可用。使用危险商（HQ）评估相关风险。通过分析静脉血和尿液中的金属浓度，对已知食用这些受污染食物的人进行了人体风险评估。结果显示，铅，锌，铬，镍的含量高于允许的限度。HQ被认为是高锌其次是铬和铅，特别是叶菜类蔬菜，特别是菠菜和苋菜。(c)2007年爱思唯尔公司All rights reserved.
Heavy metal pollution of soils resulting from sewage and wastewater irrigation is causing major concern due to the potential risk involved. In the present study Musi River and its environs were assessed for heavy metal contamination. The study area was assessed for Zn, Cr, Cu, Ni, Co and Ph in soils, forage grass, milk from cattle, leafy and non-leafy vegetables. Partitioning pattern of soil revealed high levels of Zn, Cr, and Cu associated with labile fractions, making them more mobile and plant available. The associated risk was assessed using hazard quotient (HQ). Human risk was assessed in people known to consume these contaminated foods by analyzing metals concentrations in venous blood and urine. Results showed high amounts of Pb, Zn, Cr, and Ni compared to permissible limits. HQ was found to be high for Zn followed by Cr and Ph with special reference to leafy vegetables particularly spinach and amaranthus. (c) 2007 Elsevier Inc. All rights reserved.