Risk Assessment of Soil Heavy Metals in the Jiahe River Basin of Yantai City, China

The issues related to soil environmental contamination caused by heavy metals have garnered increasing attention. In particular, the soil pollution risk in the eastern coastal regions of China has attracted widespread concern. This study surveyed heavy metals in the soils near the Jiahe River Basin...

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Main Authors: Xizhuo Chen, Pengfei Zhao, Jiaxin Huang, Jun Liu, Xiaoli Cao, Jing Che, Hui Liao, Xiaolong Zhu, Qingjie Gong
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Applied Sciences
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Online Access:https://www.mdpi.com/2076-3417/15/1/70
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author Xizhuo Chen
Pengfei Zhao
Jiaxin Huang
Jun Liu
Xiaoli Cao
Jing Che
Hui Liao
Xiaolong Zhu
Qingjie Gong
author_facet Xizhuo Chen
Pengfei Zhao
Jiaxin Huang
Jun Liu
Xiaoli Cao
Jing Che
Hui Liao
Xiaolong Zhu
Qingjie Gong
author_sort Xizhuo Chen
collection DOAJ
description The issues related to soil environmental contamination caused by heavy metals have garnered increasing attention. In particular, the soil pollution risk in the eastern coastal regions of China has attracted widespread concern. This study surveyed heavy metals in the soils near the Jiahe River Basin of Yantai City in Shandong Province, China. A total of 213 soils were sampled and analyzed for 12 items: Cr, Hg, As, Pb, Cd, Cu, Ni, Zn, Co, V, Mn, and pH. The 11 heavy metals were evaluated using the national standard GB15618-2018, with three risk levels of background, screening, and intervention, and using pollution indices, including the contamination factor (C<sub>f</sub>), ecological risk factor (Er), enrichment factor (EF), and index of geo-accumulation (I<sub>geo</sub>), with different respective risk levels. The results indicate a strong consistency between the evaluations both for the index I<sub>geo</sub> and for GB15618-2018 on five metals (i.e., Cr, Hg, As, Pb, and Cd). Therefore, the index I<sub>geo</sub> may serve as a supplementary indicator for assessing the pollution risks of heavy metals in agricultural soils regarding samples of Cu, Ni, and Zn that exceed the screening values in GB15618-2018, as well as for Co, V, and Mn, which have not yet been established in GB15618-2018. According to the three-level classification of risk in GB15618-2018, the seven commonly used levels of the index I<sub>geo</sub> are also incorporated into the three levels of background, screening, and intervention. The overall pollution risk of 11 heavy metals in the soils of the Jiahe River Basin of Yantai City belongs to the background level. Specifically, Hg and Pb in the total area are classified at the background level. Manganese, V, Co, Zn, Ni, and Cr are recognized at the screening level sporadically, while Cu, As, and Cd are found at the screening level in small areas. No areas within the region are classified at the intervention level.
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spelling doaj-art-83bd923f80a34f1a81ccdc6cb7925a332025-01-10T13:14:20ZengMDPI AGApplied Sciences2076-34172024-12-011517010.3390/app15010070Risk Assessment of Soil Heavy Metals in the Jiahe River Basin of Yantai City, ChinaXizhuo Chen0Pengfei Zhao1Jiaxin Huang2Jun Liu3Xiaoli Cao4Jing Che5Hui Liao6Xiaolong Zhu7Qingjie Gong8Yantai Center of Coastal Zone Geological Survey, China Geological Survey, Yantai 264000, ChinaYantai Center of Coastal Zone Geological Survey, China Geological Survey, Yantai 264000, ChinaSchool of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, ChinaYantai Center of Coastal Zone Geological Survey, China Geological Survey, Yantai 264000, ChinaYantai Center of Coastal Zone Geological Survey, China Geological Survey, Yantai 264000, ChinaYantai Center of Coastal Zone Geological Survey, China Geological Survey, Yantai 264000, ChinaYantai Center of Coastal Zone Geological Survey, China Geological Survey, Yantai 264000, ChinaYantai Center of Coastal Zone Geological Survey, China Geological Survey, Yantai 264000, ChinaSchool of Earth Sciences and Resources, China University of Geosciences, Beijing 100083, ChinaThe issues related to soil environmental contamination caused by heavy metals have garnered increasing attention. In particular, the soil pollution risk in the eastern coastal regions of China has attracted widespread concern. This study surveyed heavy metals in the soils near the Jiahe River Basin of Yantai City in Shandong Province, China. A total of 213 soils were sampled and analyzed for 12 items: Cr, Hg, As, Pb, Cd, Cu, Ni, Zn, Co, V, Mn, and pH. The 11 heavy metals were evaluated using the national standard GB15618-2018, with three risk levels of background, screening, and intervention, and using pollution indices, including the contamination factor (C<sub>f</sub>), ecological risk factor (Er), enrichment factor (EF), and index of geo-accumulation (I<sub>geo</sub>), with different respective risk levels. The results indicate a strong consistency between the evaluations both for the index I<sub>geo</sub> and for GB15618-2018 on five metals (i.e., Cr, Hg, As, Pb, and Cd). Therefore, the index I<sub>geo</sub> may serve as a supplementary indicator for assessing the pollution risks of heavy metals in agricultural soils regarding samples of Cu, Ni, and Zn that exceed the screening values in GB15618-2018, as well as for Co, V, and Mn, which have not yet been established in GB15618-2018. According to the three-level classification of risk in GB15618-2018, the seven commonly used levels of the index I<sub>geo</sub> are also incorporated into the three levels of background, screening, and intervention. The overall pollution risk of 11 heavy metals in the soils of the Jiahe River Basin of Yantai City belongs to the background level. Specifically, Hg and Pb in the total area are classified at the background level. Manganese, V, Co, Zn, Ni, and Cr are recognized at the screening level sporadically, while Cu, As, and Cd are found at the screening level in small areas. No areas within the region are classified at the intervention level.https://www.mdpi.com/2076-3417/15/1/70heavy metalssoilgeo-accumulation indexpollution indicesGB15618-2018
spellingShingle Xizhuo Chen
Pengfei Zhao
Jiaxin Huang
Jun Liu
Xiaoli Cao
Jing Che
Hui Liao
Xiaolong Zhu
Qingjie Gong
Risk Assessment of Soil Heavy Metals in the Jiahe River Basin of Yantai City, China
Applied Sciences
heavy metals
soil
geo-accumulation index
pollution indices
GB15618-2018
title Risk Assessment of Soil Heavy Metals in the Jiahe River Basin of Yantai City, China
title_full Risk Assessment of Soil Heavy Metals in the Jiahe River Basin of Yantai City, China
title_fullStr Risk Assessment of Soil Heavy Metals in the Jiahe River Basin of Yantai City, China
title_full_unstemmed Risk Assessment of Soil Heavy Metals in the Jiahe River Basin of Yantai City, China
title_short Risk Assessment of Soil Heavy Metals in the Jiahe River Basin of Yantai City, China
title_sort risk assessment of soil heavy metals in the jiahe river basin of yantai city china
topic heavy metals
soil
geo-accumulation index
pollution indices
GB15618-2018
url https://www.mdpi.com/2076-3417/15/1/70
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