A case study on pollution and a human health risk assessment of heavy metals in agricultural soils around Sinop province, Turkey
A case study on pollution and a human health risk assessment of heavy metals in agricultural soils around Sinop province, Turkey
复制标题
DOI：
10.1016/j.chemosphere.2019.125015
复制
发表时间：
2020-02-01
期刊：
影响因子：
8.8
通讯作者：
Ozcelik, Ali Erdem
中科院分区：
文献类型：
--
作者：
Baltas, Hasan;Sirin, Murat;Ozcelik, Ali Erdem
本研究采用能量色散x射线荧光光谱法（EDXRF）测量了土耳其锡诺普省周围88个采样点土壤样品中Cr、Fe、Ni、Cu、Zn、as和Pb等重金属的浓度水平。利用重金属富集因子（EF）、土壤累积指数（I-geo）、污染因子（CF）和污染负荷指数（PLI）等重金属污染参数和地理空间分布格局来解释和评价土壤重金属污染状况和分布。Cr、Fe、Ni、Cu、Zn、As和Pb的平均浓度分别为194.73、39,848.57、85.02、43.19、65.10、5.66和17.01 mg/kg。结果表明，除Fe、Cu和As外，Cr、Ni、As和Pb的平均浓度均超过世界地壳平均浓度。多因素分析结果表明，调查区域的Cr、Ni、Zn、As和Pb水平受农业实践等人为输入的高度影响。根据美国环保局引入的健康风险评估模型对人体健康风险进行评估，儿童的非致癌风险高于阈值水平，而成人的非致癌风险较低。研究区域内儿童和成人的总潜在致癌健康风险均在可接受范围内。总体而言，在评估健康风险时，结果表明，与成年人相比，儿童更容易受到微量金属对健康的非致癌性和致癌性影响。(C) 2019 Elsevier Ltd.版权所有。
In the present study, the concentration levels of heavy metals such as Cr, Fe, Ni, Cu, Zn, As and Pb in soil samples collected from 88 sampling locations around Sinop Province, Turkey were measured using energy dispersive X-ray fluorescence spectroscopy (EDXRF). To interpret and to evaluate the pollution status and distribution of heavy metals in soil, metal pollution parameters such as enrichment factor (EF), geo accumulation index (I-geo), pollution factor (CF) and pollution load index (PLI) and geo-spatial distribution patterns were used. The mean concentrations of Cr, Fe, Ni, Cu, Zn, As, and Pb were found to be 194.73, 39,848.57, 85.02, 43.19, 65.10, 5.66, and 17.01 mg/kg, respectively. Results indicated that the mean concentrations of Cr, Ni, As, and Pb exceeded the world crustal average, with the exception of Fe, Cu, and As. Multivariate analysis results showed that Cr, Ni, Zn, As, and Pb levels in the investigated region were highly influenced by anthropogenic inputs such as agricultural practices. According to the health risk assessment model introduced by USEPA to evaluate the human health risks, the non carcinogenic risk for children was above the threshold level, but low for adults. Total potential carcinogenic health risks for both children and adults in the study area were in acceptable range. Overall, when health risks are evaluated, it shows that children are more susceptible to non carcinogenic and carcinogenic health effects of trace metals compared to adults. (C) 2019 Elsevier Ltd. All rights reserved.