Sources of and Control Measures for PTE Pollution in Soil at the Urban Fringe in Weinan, China
The environment of the urban fringe is complex and frangible. With the acceleration of industrialization and urbanization, the urban fringe has become the primary space for urban expansion, and the intense human activities create a high risk of potentially toxic element (PTE) pollution in the soil....
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MDPI AG
2021-07-01
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| Series: | Land |
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| Online Access: | https://www.mdpi.com/2073-445X/10/7/762 |
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| author | Lei Han Rui Chen Zhao Liu Shanshan Chang Yonghua Zhao Leshi Li Risheng Li Longfei Xia |
| author_facet | Lei Han Rui Chen Zhao Liu Shanshan Chang Yonghua Zhao Leshi Li Risheng Li Longfei Xia |
| author_sort | Lei Han |
| collection | DOAJ |
| description | The environment of the urban fringe is complex and frangible. With the acceleration of industrialization and urbanization, the urban fringe has become the primary space for urban expansion, and the intense human activities create a high risk of potentially toxic element (PTE) pollution in the soil. In this study, 138 surface soil samples were collected from a region undergoing rapid urbanization and construction—Weinan, China. Concentrations of As, Pb, Cr, Cu, and Ni (Inductively Coupled Plasma Mass Spectrometry, ICP-MS) and Hg (Atomic Fluorescence Spectrometry, AFS) were measured. The Kriging interpolation method was used to create a visualization of the spatial distribution characteristics and to analyze the pollution sources of PTEs in the soil. The pollution status of PTEs in the soil was evaluated using the national environmental quality standards for soils in different types of land use. The results show that the content range of As fluctuated a small amount and the coefficient of variation is small and mainly comes from natural soil formation. The content of Cr, Cu, and Ni around the automobile repair factory, the prefabrication factory, and the building material factory increased due to the deposition of wear particles in the soil. A total of 13.99% of the land in the study area had Hg pollution, which was mainly distributed on category 1 development land and farmland. Chemical plants were the main pollution sources. The study area should strictly control the industrial pollution emissions, regulate the agricultural production, adjust the land use planning, and reduce the impact of pollution on human beings. Furthermore, we make targeted remediation suggestions for each specific land use type. These results are of theoretical significance, will be of practical value for the control of PTEs in soil, and will provide ecological environmental protection in the urban fringe throughout the urbanization process. |
| first_indexed | 2024-03-10T09:34:17Z |
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| id | doaj.art-557497c907bf4c4780ab6c034f34b8f7 |
| institution | Directory Open Access Journal |
| issn | 2073-445X |
| language | English |
| last_indexed | 2024-03-10T09:34:17Z |
| publishDate | 2021-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Land |
| spelling | doaj.art-557497c907bf4c4780ab6c034f34b8f72023-11-22T04:12:22ZengMDPI AGLand2073-445X2021-07-0110776210.3390/land10070762Sources of and Control Measures for PTE Pollution in Soil at the Urban Fringe in Weinan, ChinaLei Han0Rui Chen1Zhao Liu2Shanshan Chang3Yonghua Zhao4Leshi Li5Risheng Li6Longfei Xia7Shaanxi Key Laboratory of Land Consolidation, Xi’an 710054, ChinaSchool of Earth Sciences and Resources, Chang’an University, Xi’an 710054, ChinaShaanxi Key Laboratory of Land Consolidation, Xi’an 710054, ChinaSchool of Land Engineering, Chang’an University, Xi’an 710054, ChinaShaanxi Key Laboratory of Land Consolidation, Xi’an 710054, ChinaSchool of Land Engineering, Chang’an University, Xi’an 710054, ChinaShaanxi Provincial Land Engineering Construction Group, Xi’an 710075, ChinaShaanxi Provincial Land Engineering Construction Group, Xi’an 710075, ChinaThe environment of the urban fringe is complex and frangible. With the acceleration of industrialization and urbanization, the urban fringe has become the primary space for urban expansion, and the intense human activities create a high risk of potentially toxic element (PTE) pollution in the soil. In this study, 138 surface soil samples were collected from a region undergoing rapid urbanization and construction—Weinan, China. Concentrations of As, Pb, Cr, Cu, and Ni (Inductively Coupled Plasma Mass Spectrometry, ICP-MS) and Hg (Atomic Fluorescence Spectrometry, AFS) were measured. The Kriging interpolation method was used to create a visualization of the spatial distribution characteristics and to analyze the pollution sources of PTEs in the soil. The pollution status of PTEs in the soil was evaluated using the national environmental quality standards for soils in different types of land use. The results show that the content range of As fluctuated a small amount and the coefficient of variation is small and mainly comes from natural soil formation. The content of Cr, Cu, and Ni around the automobile repair factory, the prefabrication factory, and the building material factory increased due to the deposition of wear particles in the soil. A total of 13.99% of the land in the study area had Hg pollution, which was mainly distributed on category 1 development land and farmland. Chemical plants were the main pollution sources. The study area should strictly control the industrial pollution emissions, regulate the agricultural production, adjust the land use planning, and reduce the impact of pollution on human beings. Furthermore, we make targeted remediation suggestions for each specific land use type. These results are of theoretical significance, will be of practical value for the control of PTEs in soil, and will provide ecological environmental protection in the urban fringe throughout the urbanization process.https://www.mdpi.com/2073-445X/10/7/762PTEssoilurban fringepollution sourcespreventionrepair |
| spellingShingle | Lei Han Rui Chen Zhao Liu Shanshan Chang Yonghua Zhao Leshi Li Risheng Li Longfei Xia Sources of and Control Measures for PTE Pollution in Soil at the Urban Fringe in Weinan, China Land PTEs soil urban fringe pollution sources prevention repair |
| title | Sources of and Control Measures for PTE Pollution in Soil at the Urban Fringe in Weinan, China |
| title_full | Sources of and Control Measures for PTE Pollution in Soil at the Urban Fringe in Weinan, China |
| title_fullStr | Sources of and Control Measures for PTE Pollution in Soil at the Urban Fringe in Weinan, China |
| title_full_unstemmed | Sources of and Control Measures for PTE Pollution in Soil at the Urban Fringe in Weinan, China |
| title_short | Sources of and Control Measures for PTE Pollution in Soil at the Urban Fringe in Weinan, China |
| title_sort | sources of and control measures for pte pollution in soil at the urban fringe in weinan china |
| topic | PTEs soil urban fringe pollution sources prevention repair |
| url | https://www.mdpi.com/2073-445X/10/7/762 |
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