Contamination of food crops grown on soils with elevated heavy metals content
Contamination of food crops grown on soils with elevated heavy metals content
复制标题
DOI：
10.1016/j.ecoenv.2015.04.032
复制
发表时间：
2015-08-01
影响因子：
6.8
通讯作者：
Hajok, Ilona
中科院分区：
文献类型：
--
作者：
Dziubanek, Grzegorz;Piekut, Agata;Hajok, Ilona
上西里西亚工业区13个城市的居民接触镉和铅的程度是根据经常消费的蔬菜中的重金属含量估算出来的。这些样本是从这些城市的农田、配额和家庭花园中收集的。测定了土壤和蔬菜--卷心菜、胡萝卜和土豆样品中镉和铅的含量。上西里西亚(Max.)土壤耕层重金属含量较高。48.8和2470 mg kg(-1)dw。分别为Cd和Pb.)解释了当地种植的蔬菜中Cd和Pb2+的高含量，远高于允许的水平。考虑了三种不同浓度的蔬菜中铅和镉的暴露情景。在情景I中，重金属含量等于最大允许水平，铅和镉的危害商(HQ)值分别为0.530和0.704。在假设食用来自上西里西亚的受污染蔬菜的情景中，情景II的铅和镉的危害商(HQ)值分别为0.755和1.337，情景III的危害商(HQ)值分别为1.806和4.542。研究表明，在上西里西亚地区种植的蔬菜在农田、配给和家庭菜园中的消费可能会对健康构成重大风险。(C)2015 Elsevier Inc.保留所有权利。
The exposure of inhabitants from 13 cities of The Upper Silesia Industrial Region to cadmium and lead has been estimated on the basis of heavy metals content in commonly consumed vegetables. The samples were collected from agricultural fields, allotments and home gardens in these cities. Cadmium and lead concentrations in samples of soil and vegetables - cabbage, carrots and potatoes were determined. High content of heavy metals in the arable layer of soil in Upper Silesia (max. 48.8 and 2470 mg kg(-1) d.w. for Cd and Pb, respectively) explained high Cd and Pb concentrations in locally cultivated vegetables which are well above the permissible level. Three exposure scenarios with different concentrations of Pb and Cd in vegetables were taken into consideration. In the Scenario I where the content of heavy metals was equal to maximum permissible level, the value of hazard quotient (HQ) for Pb and Cd was 0.530 and 0.704, respectively. In the scenarios where were assumed consumption of contaminated vegetables from Upper Silesia the value of hazard quotient (HQ) for Pb and Cd was 0.755 and 1.337 for Scenario II and 1.806 and 4.542 for Scenario III. The study showed that consumption of vegetables cultivated in Upper Silesia Region on the agricultural fields, allotments and in home gardens may pose a significant health risk. (C) 2015 Elsevier Inc. All rights reserved.