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Spatial characteristics of ecological and health risks of toxic heavy metal pollution from road dust in the Black Sea coast of Turkey
Geoderma Regional ( IF 4.1 ) Pub Date : 2021-03-27 , DOI: 10.1016/j.geodrs.2021.e00388
Cafer Mert Yesilkanat , Yasar Kobya

The purpose of this study was to investigate the toxic heavy metal (Cd, Cr, Cu, Ni, Pb, Zn) concentrations of dust samples from the Black Sea coastal road in the north of Turkey. The Black Sea coastal road was represented by 50 sampling sites. The highest average concentrations were identified in Ordu for Cd (0.4 mg kg−1), Cu (132 mg kg−1), and Zn (457 mg kg−1), Samsun for Cr (59 mg kg−1) and Ni (46 mg kg−1), and Artvin for Pb (59 mg kg−1). The analysis of the environmental pollution risk levels of heavy metals was evaluated with the geo-accumulation index (Igeo), pollution assessment indexes (CF and NIPI) and pollution load indexes (PLI and PLIzone). The mean values of Igeo were found in the following decreasing order: Zn (1.2) > Cu (0.5) > Cd (0.2) > Pb (−0.4) > Cr (−0.6) = Ni (−0.6). According to pollution assessment indexes (CF and NIPI), and pollution load indexes (PLI and PLIzone), there were relatively high levels of environmental pollution in Samsun, Ordu, and Artvin provinces, compared to other provinces in the study area. Furthermore, it was identified that the significant contribution of the monomial potential ecological risk (Ei) originated from Cu in Rize (57.6%), Artvin (46.6%), Giresun (40.2%), Pb in Trabzon (31.1%), and Cd in Ordu (71.8%) and Samsun (62.6%). The mean potential ecological risk (PER) values of Ordu and Samsun were categorized as considerable risk. The health risks of toxic heavy metals in road dust for adults and children were evaluated in two different categories, as non-carcinogenic (hazard index, HI), and carcinogenic health risks (total cancer risk, TCR), considering the three possible exposure pathways. In the study area, the mean of HI and TCR for children and adults were found in the negligible non-carcinogenic health risk (HI < 1) and the lower cancer risk range (10−6 < TCR ≤ 10−4), respectively.



中文翻译:

土耳其黑海沿岸道路灰尘产生的有毒重金属污染的生态和健康风险的空间特征

这项研究的目的是调查土耳其北部黑海沿岸道路粉尘样品中有毒重金属(Cd,Cr,Cu,Ni,Pb,Zn)的浓度。黑海沿海公路有50个采样点。在Ordu中,Cd(0.4 mg kg -1),Cu(132 mg kg -1)和Zn(457 mg kg -1),Samsun中Cr(59 mg kg -1)和Ni(Ni)的最高平均浓度被确定。46 mg kg -1)和Artvin的Pb(59 mg kg -1)。用地质累积指数(I geo),污染评估指数(CFNIPI)评估了重金属的环境污染风险水平。)和污染负荷指数(PLIPLI)。I geo的平均值按以下降序找到:Zn(1.2)> Cu(0.5)> Cd(0.2)> Pb(-0.4)> Cr(-0.6)= Ni(-0.6)。根据污染评估指标(CFNIPI)以及污染负荷指数(PLIPLI),与研究区域的其他省相比,萨姆松,奥尔杜和阿尔特温省的环境污染水平相对较高。此外,还确定了单项潜在生态风险(E i)源自Rize(57.6%),Artvin(46.6%),Giresun(40.2%),Trabzon(31.1%)中的Pb和Ordu(71.8%)和Samsun(62.6%)中的Cd。Ordu和Samsun的平均潜在生态风险(PER)值被归类为相当大的风险。考虑到三种可能的暴露途径,对成人和儿童道路灰尘中有毒重金属的健康风险进行了两种不同的评估,分别为非致癌性(危险指数,HI)和致癌性健康风险(总癌症风险,TCR)。 。在研究区域,发现儿童和成人的HITCR平均值处于可忽略的非致癌健康风险(HI <1)和较低的癌症风险范围(10)中。-6 < TCR ≤10 -4),分别。

更新日期:2021-04-02
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