Soil potentially toxic element pollution at different urbanization intensities: Quantitative source apportionment and source-oriented health risk assessment
Potentially toxic element (PTE) pollution of urban soils has become the focus of social concern, but the differences of the sources, pollution levels and source-oriented human health risks (HHR) of PTE in urban soils among different urban intensity areas is rarely known. This study explored a compre...
| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-02-01
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| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S0147651323000544 |
| _version_ | 1828046721538588672 |
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| author | Xinyun Li Lulu Li Zijun Zhou Ting Li Ji An Shirong Zhang Xiaoxun Xu Yulin Pu Guiyin Wang Yongxia Jia Xiaojing Liu Yun Li |
| author_facet | Xinyun Li Lulu Li Zijun Zhou Ting Li Ji An Shirong Zhang Xiaoxun Xu Yulin Pu Guiyin Wang Yongxia Jia Xiaojing Liu Yun Li |
| author_sort | Xinyun Li |
| collection | DOAJ |
| description | Potentially toxic element (PTE) pollution of urban soils has become the focus of social concern, but the differences of the sources, pollution levels and source-oriented human health risks (HHR) of PTE in urban soils among different urban intensity areas is rarely known. This study explored a comprehensive scheme that combined positive matrix factorization model and source-oriented assessment to quantitatively assess the priority pollution sources and HHR in urban soils from areas with different urbanization intensities. All the average values for PTE concentrations, except for Cr, were higher than their corresponding background values. The contributions made by the four sources (atmospheric deposition, agricultural activities, traffic activities, and natural sources) were relatively similar (22.29–29.89%) in the low urbanization intensity (LUI) area, whereas traffic activities and atmospheric deposition made the greatest contributions in the medium urbanization intensity (MUI) (29.12%) and the high urbanization intensity (HUI) (38.97%) areas, respectively. The geo-accumulation index results revealed that Cd was the most polluting element and the HUI area had the highest pollution levels. The content-oriented assessment of HHR demonstrated that the non-carcinogenic risks were acceptable, but the carcinogenic risks were unacceptable. According to the source-oriented HHR assessment, among the anthropogenic activities, atmospheric deposition contributed the most to carcinogenic risk of children in all areas, and atmospheric deposition, traffic activities and agricultural activities contributed the most to the carcinogenic risk of adults in HUI, MUI and LUI, respectively. This suggest that control measures need to be tailored to the appropriate urbanization intensity to effectively curb PTE pollution caused by anthropogenic activities. |
| first_indexed | 2024-04-10T18:29:57Z |
| format | Article |
| id | doaj.art-8039aba5f80d4016adb12a0238946a47 |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-04-10T18:29:57Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-8039aba5f80d4016adb12a0238946a472023-02-02T04:47:05ZengElsevierEcotoxicology and Environmental Safety0147-65132023-02-01251114550Soil potentially toxic element pollution at different urbanization intensities: Quantitative source apportionment and source-oriented health risk assessmentXinyun Li0Lulu Li1Zijun Zhou2Ting Li3Ji An4Shirong Zhang5Xiaoxun Xu6Yulin Pu7Guiyin Wang8Yongxia Jia9Xiaojing Liu10Yun Li11College of Resources, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Resources, Sichuan Agricultural University, Chengdu 611130, ChinaInstitute of Agricultural Resources and Environment, Sichuan Academy of Agricultural Sciences, Chengdu 610066, China; Corresponding authors.College of Resources, Sichuan Agricultural University, Chengdu 611130, China; Corresponding authors.College of Resources, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Environmental Science, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Environmental Science, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Resources, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Environmental Science, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Resources, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Resources, Sichuan Agricultural University, Chengdu 611130, ChinaCollege of Resources, Sichuan Agricultural University, Chengdu 611130, ChinaPotentially toxic element (PTE) pollution of urban soils has become the focus of social concern, but the differences of the sources, pollution levels and source-oriented human health risks (HHR) of PTE in urban soils among different urban intensity areas is rarely known. This study explored a comprehensive scheme that combined positive matrix factorization model and source-oriented assessment to quantitatively assess the priority pollution sources and HHR in urban soils from areas with different urbanization intensities. All the average values for PTE concentrations, except for Cr, were higher than their corresponding background values. The contributions made by the four sources (atmospheric deposition, agricultural activities, traffic activities, and natural sources) were relatively similar (22.29–29.89%) in the low urbanization intensity (LUI) area, whereas traffic activities and atmospheric deposition made the greatest contributions in the medium urbanization intensity (MUI) (29.12%) and the high urbanization intensity (HUI) (38.97%) areas, respectively. The geo-accumulation index results revealed that Cd was the most polluting element and the HUI area had the highest pollution levels. The content-oriented assessment of HHR demonstrated that the non-carcinogenic risks were acceptable, but the carcinogenic risks were unacceptable. According to the source-oriented HHR assessment, among the anthropogenic activities, atmospheric deposition contributed the most to carcinogenic risk of children in all areas, and atmospheric deposition, traffic activities and agricultural activities contributed the most to the carcinogenic risk of adults in HUI, MUI and LUI, respectively. This suggest that control measures need to be tailored to the appropriate urbanization intensity to effectively curb PTE pollution caused by anthropogenic activities.http://www.sciencedirect.com/science/article/pii/S0147651323000544Potentially toxic elementsUrbanization intensitySource apportionmentRisk assessment |
| spellingShingle | Xinyun Li Lulu Li Zijun Zhou Ting Li Ji An Shirong Zhang Xiaoxun Xu Yulin Pu Guiyin Wang Yongxia Jia Xiaojing Liu Yun Li Soil potentially toxic element pollution at different urbanization intensities: Quantitative source apportionment and source-oriented health risk assessment Ecotoxicology and Environmental Safety Potentially toxic elements Urbanization intensity Source apportionment Risk assessment |
| title | Soil potentially toxic element pollution at different urbanization intensities: Quantitative source apportionment and source-oriented health risk assessment |
| title_full | Soil potentially toxic element pollution at different urbanization intensities: Quantitative source apportionment and source-oriented health risk assessment |
| title_fullStr | Soil potentially toxic element pollution at different urbanization intensities: Quantitative source apportionment and source-oriented health risk assessment |
| title_full_unstemmed | Soil potentially toxic element pollution at different urbanization intensities: Quantitative source apportionment and source-oriented health risk assessment |
| title_short | Soil potentially toxic element pollution at different urbanization intensities: Quantitative source apportionment and source-oriented health risk assessment |
| title_sort | soil potentially toxic element pollution at different urbanization intensities quantitative source apportionment and source oriented health risk assessment |
| topic | Potentially toxic elements Urbanization intensity Source apportionment Risk assessment |
| url | http://www.sciencedirect.com/science/article/pii/S0147651323000544 |
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