Spatiotemporal variation of soil heavy metals in China: The pollution status and risk assessment

Shi, Jiangdan; Zhao, Di; Ren, Futian; Huang, Lei

doi:10.1016/j.scitotenv.2023.161768

Cited by 153 publications

(41 citation statements)

References 35 publications

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“…Woodlands at the most marginal levels of urban and periurban areas are least affected by human activities and therefore have the lowest levels of heavy metal accumulation [21,46] . Huang and Shi et al also found that the heavy metal content of various land use types decreased in the order mining areas> industrial areas> agricultural land > woodland [25,26] .…”

Section: Distribution Of Heavy Metalsmentioning

confidence: 96%

Spatial-temporal variation and source analysis of heavy metal in urban and peri-urban soils：The case study of Beilun District (Ningbo, China) from 2015 to 2022

Zhang,

Hu,

Gao

et al. 2024

Preprint

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The soil environment plays an important role in urban ecosystems. To study the heavy metal contamination of soil in Beilun District, Ningbo, we collected soil samples from 60 points in urban and peri-urban areas of Beilun District and analyzed the spatiotemporal variation and sources of heavy metal pollution in various land-use types. The contents of heavy metals in green belts and woodland in 2022 were higher than those in 2015, while there was no significant change in agricultural land. The heavy metal contents in both years were mainly in the order green belts > agricultural land > woodland. The spatiotemporal analysis showed that heavy metal pollution in Beilun District was concentrated in five industrial areas, and there was a trend toward the disappearance of highly polluted points. The single-factor pollution index, pollution load index (PLI), and geoaccumulation index (Igeo) indicated that there was no significant heavy metal pollution in Beilun District, and individual elements at specific points showed slight pollution. The source analysis results showed that the main source of Hg is chemical, As is mainly derived from agricultural, Cr, Ni and Cu are mainly derived from natural, the main sources of Zn and Cd are electroplating and machinery activities, and the main source of Pb is traffic. This results specify a reference for future investigation on urban soil heavy metals, and the source apportionment results provide a scientific foundation for subsequent soil heavy metal pollution treatment.

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Section: Distribution Of Heavy Metalsmentioning

confidence: 96%

Spatial-temporal variation and source analysis of heavy metal in urban and peri-urban soils：The case study of Beilun District (Ningbo, China) from 2015 to 2022

Zhang,

Hu,

Gao

et al. 2024

Preprint

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“…Due to the quick development of urbanization and industrialization, agricultural wastes, industrial emissions, domestic wastes, and animal husbandry have become important sources of HMs as shown in Figure 1a (Jones et al, 2019; Joseph et al, 2019; Peng et al, 2022; Zhao et al, 2019). According to the latest survey on the soil contamination situation in China, it was found that Pb, Cd, Hg, Cr, As, Ni, and Cu among the HMs accounted for a large proportion of the contaminated soil (Shi et al, 2023). It is estimated by United Nations data that about 80% of industrial and urban wastewater in developing countries is discharged into the environment without any treatment (Joseph et al, 2019).…”

Section: Source Hazards and Migration Of Contaminants In Soil And Gro...mentioning

confidence: 99%

Migration and remediation of typical contaminants in soil and groundwater: A state of art review

Zhao,

Song,

Cheng

et al. 2024

Land Degrad Dev

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Soil and groundwater contamination has always been a global concern. Contaminants are migrated and transformed in the soil and groundwater environments, which in turn pose potential environmental risks to humans. This paper describes four typical contaminants, including heavy metals, polycyclic aromatic hydrocarbons, microplastics, and perfluorinated and polyfluoroalkyl substances. Based on a systematic summary of the sources, hazards, and migration behaviors of these four contaminants, various existing remediation methods are analyzed, and the advantages and disadvantages of different methods are discussed. Finally, the future research prospects of soil and groundwater remediation are described, and the significance of the study of contaminant migration and remediation in the subsurface environment is emphasized. This research can help to provide theoretical and technical support for the study of contaminant migration and removal in soil and groundwater environments, and further improve the removal rate in actual contaminant sites.

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“…Social and industrial developments are causing increasingly severe heavy metal contamination of soil. 1 Contaminated soil can pose great risks to human health. Heavy metals in soil can be absorbed by crops and subsequently consumed by humans and can then interact with and impair the functionalities of proteins and enzymes in the body.…”

Section: Introductionmentioning

confidence: 99%

Decreasing the effect of soil particle size on heavy metal measurement stability using a method involving laser-induced breakdown spectroscopy and solid-phase conversion

Song,

Lin,

et al. 2024

J. Anal. At. Spectrom.

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Spatiotemporal variation of soil heavy metals in China: The pollution status and risk assessment

Cited by 153 publications

References 35 publications

Spatial-temporal variation and source analysis of heavy metal in urban and peri-urban soils：The case study of Beilun District (Ningbo, China) from 2015 to 2022

Spatial-temporal variation and source analysis of heavy metal in urban and peri-urban soils：The case study of Beilun District (Ningbo, China) from 2015 to 2022

Migration and remediation of typical contaminants in soil and groundwater: A state of art review

Decreasing the effect of soil particle size on heavy metal measurement stability using a method involving laser-induced breakdown spectroscopy and solid-phase conversion

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