Characteristics, source apportionment and health risk assessment of heavy metals in urban road dust of the Pearl River Delta, South China
To investigate the characteristics of heavy metals (As, Cd, Cr, Cu, Pb, Hg, Ni and Zn) in urban road dust from different cities and functional areas in the Pearl River Delta (PRD), South China, a total of 294 dust samples were analyzed. The contamination characteristics and health risk of heavy meta...
| Main Authors: | , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-05-01
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| Series: | Ecotoxicology and Environmental Safety |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S014765132200330X |
| _version_ | 1818523918124711936 |
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| author | Chushan Huang Lijuan Zhang Jiuling Meng Yunjiang Yu Jianying Qi Peng Shen Xin Li Ping Ding Mianbiao Chen Guocheng Hu |
| author_facet | Chushan Huang Lijuan Zhang Jiuling Meng Yunjiang Yu Jianying Qi Peng Shen Xin Li Ping Ding Mianbiao Chen Guocheng Hu |
| author_sort | Chushan Huang |
| collection | DOAJ |
| description | To investigate the characteristics of heavy metals (As, Cd, Cr, Cu, Pb, Hg, Ni and Zn) in urban road dust from different cities and functional areas in the Pearl River Delta (PRD), South China, a total of 294 dust samples were analyzed. The contamination characteristics and health risk of heavy metals in the dust were assessed, their chemical speciation were distinguished, and their sources were identified by the correlations, cluster and principal component analysis (PCA). The mean concentrations of As (15.89 mg/kg), Cd (1.59 mg/kg), Cr (143.75 mg/kg), Cu (184.42 mg/kg), Pb (114.82 mg/kg), Hg (0.11 mg/kg), Ni (41.53 mg/kg) and Zn (645.94 mg/kg) in urban road dust were in high or moderate levels compare with other previous researches. In this case, the contamination of Cr, Cu, Ni and Zn in the industrial area (IA) and the contamination of Cd and Hg in the commercial area (CA) were significantly higher relative to other functional areas (P < 0.05), and the contamination of heavy metals in Foshan City was significantly higher than other cities (P < 0.01). The order of mobility of the heavy metals with higher concentration in urban road dust of the Pearl River Delta declined in the following order: Zn, Ni, Cu, Pb and Cr. Statistical analysis result showed the contaminated heavy metals in urban road dust were mainly contributed by industrial activities, traffic activities and building pollution. There were no significant carcinogenic and noncarcinogenic risks for adults, children however showed significant noncarcinogenic effect caused by As and Cr in partial points, albeit with low contamination level of the two metals. The ingestion was a principal pathway for heavy metals via urban road dust to exposure population. More protection measures should be considered to reduce children’s exposure to the dust, especially in the CA and IA. |
| first_indexed | 2024-12-11T05:50:42Z |
| format | Article |
| id | doaj.art-c54f03e9050545178ba2b3d9d32231fc |
| institution | Directory Open Access Journal |
| issn | 0147-6513 |
| language | English |
| last_indexed | 2024-12-11T05:50:42Z |
| publishDate | 2022-05-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ecotoxicology and Environmental Safety |
| spelling | doaj.art-c54f03e9050545178ba2b3d9d32231fc2022-12-22T01:18:49ZengElsevierEcotoxicology and Environmental Safety0147-65132022-05-01236113490Characteristics, source apportionment and health risk assessment of heavy metals in urban road dust of the Pearl River Delta, South ChinaChushan Huang0Lijuan Zhang1Jiuling Meng2Yunjiang Yu3Jianying Qi4Peng Shen5Xin Li6Ping Ding7Mianbiao Chen8Guocheng Hu9State Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, ChinaState Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, ChinaState Key Laboratory of Geological Process and Mineral Resources, School of Earth Sciences, China University of Geosciences, Wuhan 430074, ChinaState Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, ChinaState Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, ChinaChinese Research Academy of Environmental Sciences, Beijing 100012, ChinaState Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, ChinaState Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, ChinaState Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, ChinaState Environmental Protection Key Laboratory of Environmental Pollution Health Risk Assessment, South China Institute of Environmental Sciences, Ministry of Ecology and Environment, Guangzhou 510655, China; Corresponding author.To investigate the characteristics of heavy metals (As, Cd, Cr, Cu, Pb, Hg, Ni and Zn) in urban road dust from different cities and functional areas in the Pearl River Delta (PRD), South China, a total of 294 dust samples were analyzed. The contamination characteristics and health risk of heavy metals in the dust were assessed, their chemical speciation were distinguished, and their sources were identified by the correlations, cluster and principal component analysis (PCA). The mean concentrations of As (15.89 mg/kg), Cd (1.59 mg/kg), Cr (143.75 mg/kg), Cu (184.42 mg/kg), Pb (114.82 mg/kg), Hg (0.11 mg/kg), Ni (41.53 mg/kg) and Zn (645.94 mg/kg) in urban road dust were in high or moderate levels compare with other previous researches. In this case, the contamination of Cr, Cu, Ni and Zn in the industrial area (IA) and the contamination of Cd and Hg in the commercial area (CA) were significantly higher relative to other functional areas (P < 0.05), and the contamination of heavy metals in Foshan City was significantly higher than other cities (P < 0.01). The order of mobility of the heavy metals with higher concentration in urban road dust of the Pearl River Delta declined in the following order: Zn, Ni, Cu, Pb and Cr. Statistical analysis result showed the contaminated heavy metals in urban road dust were mainly contributed by industrial activities, traffic activities and building pollution. There were no significant carcinogenic and noncarcinogenic risks for adults, children however showed significant noncarcinogenic effect caused by As and Cr in partial points, albeit with low contamination level of the two metals. The ingestion was a principal pathway for heavy metals via urban road dust to exposure population. More protection measures should be considered to reduce children’s exposure to the dust, especially in the CA and IA.http://www.sciencedirect.com/science/article/pii/S014765132200330XUrban road dustHeavy metal contaminationChemical speciationHuman healthSource identification |
| spellingShingle | Chushan Huang Lijuan Zhang Jiuling Meng Yunjiang Yu Jianying Qi Peng Shen Xin Li Ping Ding Mianbiao Chen Guocheng Hu Characteristics, source apportionment and health risk assessment of heavy metals in urban road dust of the Pearl River Delta, South China Ecotoxicology and Environmental Safety Urban road dust Heavy metal contamination Chemical speciation Human health Source identification |
| title | Characteristics, source apportionment and health risk assessment of heavy metals in urban road dust of the Pearl River Delta, South China |
| title_full | Characteristics, source apportionment and health risk assessment of heavy metals in urban road dust of the Pearl River Delta, South China |
| title_fullStr | Characteristics, source apportionment and health risk assessment of heavy metals in urban road dust of the Pearl River Delta, South China |
| title_full_unstemmed | Characteristics, source apportionment and health risk assessment of heavy metals in urban road dust of the Pearl River Delta, South China |
| title_short | Characteristics, source apportionment and health risk assessment of heavy metals in urban road dust of the Pearl River Delta, South China |
| title_sort | characteristics source apportionment and health risk assessment of heavy metals in urban road dust of the pearl river delta south china |
| topic | Urban road dust Heavy metal contamination Chemical speciation Human health Source identification |
| url | http://www.sciencedirect.com/science/article/pii/S014765132200330X |
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