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Ecological Risk Evaluation and Source Identification of Heavy Metal Pollution in Urban Village Soil Based on XRF Technique

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  • Siqi Liu

    (Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an 710075, China
    Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an 710075, China
    Key Laboratory of Degraded and Unused Land Consolidation Engineering, The Ministry of Natural Resources, Xi’an 710075, China)

  • Biao Peng

    (Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an 710075, China
    School of Land Engineering, Chang’an University, Xi′an 710054, China)

  • Jianfeng Li

    (Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi’an 710075, China
    Key Laboratory of Degraded and Unused Land Consolidation Engineering, The Ministry of Natural Resources, Xi’an 710075, China)

Abstract

The rapid urbanization in China has resulted in significant differences between urban and rural areas. The emergence of urban villages is inevitable in this context, for which complex problems regarding land use, industrial management and ecological environment have arisen. This study performed a case study on a typical urban village, by assessing heavy metal pollution and ecological risk in soil. It detected a total of 80 basic units through portable X-ray fluorescence (XRF) instrument. A total of 25 high-risk contaminated points were selected, sampled and analyzed in laboratory as confirmation. The results showed the mean concentrations of Pb, Cu, Zn and Ni in soil were significantly higher than background values. Pb, Zn and Ni showed obvious pairwise correlation, and the high-value zones could be attributed to automobile traffic and industrial activities. In addition, the pollution problem is complicated by a combination of agricultural activities, the absence of clear division between different functional zones, as well as a general lack of environmental awareness. All of these lead to increased ecological risk and are a serios threaten to public health.

Suggested Citation

  • Siqi Liu & Biao Peng & Jianfeng Li, 2022. "Ecological Risk Evaluation and Source Identification of Heavy Metal Pollution in Urban Village Soil Based on XRF Technique," Sustainability, MDPI, vol. 14(9), pages 1-19, April.
    • Handle: RePEc:gam:jsusta:v:14:y:2022:i:9:p:5030-:d:799638
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    References listed on IDEAS

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    1. Mirjana Tešić & Nadežda Stojanović & Milan Knežević & Danijela Đunisijević-Bojović & Jovana Petrović & Pavle Pavlović, 2022. "The Impact of the Degree of Urbanization on Spatial Distribution, Sources and Levels of Heavy Metals Pollution in Urban Soils—A Case Study of the City of Belgrade (Serbia)," Sustainability, MDPI, vol. 14(20), pages 1-21, October.
    2. Yingyan Xu & Xiaoxing Huang, 2022. "Community Bargaining with Urban Growth: The Case of J Village in Guangzhou," IJERPH, MDPI, vol. 19(13), pages 1-15, June.
    3. Bing Wu & Keming Yang & Yanru Li & Jiale He, 2023. "Hyperspectral Inversion of Heavy Metal Copper Content in Corn Leaves Based on DRS–XGBoost," Sustainability, MDPI, vol. 15(24), pages 1-21, December.

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