城市化
工业化
污染
环境科学
环境保护
中国
土壤污染
人类健康
环境工程
污染
重金属
土壤水分
环境化学
环境卫生
地理
生态学
化学
土壤科学
经济
考古
生物
医学
市场经济
作者
Fengjie Li,Yang Hong-wei,Ramamoorthy Ayyamperumal,Yang Liu
出处
期刊:Chemosphere
[Elsevier]
日期:2022-09-13
卷期号:308: 136396-136396
被引量:69
标识
DOI:10.1016/j.chemosphere.2022.136396
摘要
Heavy metal pollution in urban soils and dust is mostly caused by extensive anthropogenic activity during urbanization and industrialization. In this research study, the pollution characteristics, sources, ecological and human health risks of heavy metals in urban soil, and dust have been thoroughly evaluated. The research findings demonstrate that dust has a higher level of contamination than urban soil, such as Pb, Cu, and Zn metals are more contaminated in both urban soil and dust throughout the city, and Hg and As are also found in locations with a high concentration of heavy industrial companies. This implies that traffic emissions are still a significant source of metals in urban areas, though industrial companies also contribute. The health risk assessment model used to calculate human exposure revealed that the non-carcinogenic and carcinogenic risks of selected metals in soil and dust were generally in the low range, except for the carcinogenic risk from Cr in children. Statistical analysis revealed that Cr and Ni concentrations were mainly of natural origin, Cu and Zn have been sourced from traffic, whereas Pb, Hg, and As have been sourced from industrial activities. The overall recommendation is that the road traffic environment and municipal construction facilities need to be improved to ensure the sustainable development of the city's environment, while pollution from industrial waste is strongly controlled.
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