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Spatiotemporal Variation and Pollution Assessment of Pb/Zn from Smelting Activities in China

Author

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  • Zhenfeng Zang

    (Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

  • Yonghua Li

    (Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China)

  • Hairong Li

    (Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China)

  • Zhaohui Guo

    (Institute of Environmental Engineering, School of Metallurgy and Environment, Central South University, Changsha 410083, China)

  • Ru Zhang

    (Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China
    University of Chinese Academy of Sciences, Beijing 100049, China)

Abstract

Nonferrous smelting is an important source of heavy metals in soil, which causes different degrees of soil pollution, especially in lead–zinc (Pb/Zn) smelting areas. Based on the Pb/Zn environmental release during the Pb/Zn mineral smelting processes in 31 Chinese provinces from the period 2000 to 2015, the study analyzed the spatiotemporal variations in Pb/Zn environmental release at the national level and then evaluated the degree of soil pollution and potential ecological risk based on the heavy metal content in soil from Pb/Zn smelting areas. The results showed that from the period 2000 to 2015, the Pb release had a discrete trend, transferring from the middle east to the west, and the provinces with higher Pb releases were Henan Province, Yunnan Province, and Hunan Province. However, the Zn release showed a tendency towards spatial aggregation, and the release center of this heavy metal presented a shifting trend from south to north; additionally, the release of Zn was highest in Hunan Province. The pollution index analyses indicated that Cd, Pb, Cu, and Zn in Zhuzhou and Huludao all reached extremely polluted levels, while Tongguan was at a safe level. In Gejiu, Mianxian, Fengxian, Zhuzhou, Huludao, and Shaoguan, there were very high potential ecological risks, with Cd having the highest potential ecological risk in most smelting areas, followed by Pb.

Suggested Citation

  • Zhenfeng Zang & Yonghua Li & Hairong Li & Zhaohui Guo & Ru Zhang, 2020. "Spatiotemporal Variation and Pollution Assessment of Pb/Zn from Smelting Activities in China," IJERPH, MDPI, vol. 17(6), pages 1-13, March.
    • Handle: RePEc:gam:jijerp:v:17:y:2020:i:6:p:1968-:d:333481
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    References listed on IDEAS

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    1. Sana Khalid & Muhammad Shahid & Natasha & Irshad Bibi & Tania Sarwar & Ali Haidar Shah & Nabeel Khan Niazi, 2018. "A Review of Environmental Contamination and Health Risk Assessment of Wastewater Use for Crop Irrigation with a Focus on Low and High-Income Countries," IJERPH, MDPI, vol. 15(5), pages 1-36, May.
    2. Moussa M. Diawara & Sofy Shrestha & Jim Carsella & Shanna Farmer, 2018. "Smelting Remains a Public Health Risk Nearly a Century Later: A Case Study in Pueblo, Colorado, USA," IJERPH, MDPI, vol. 15(5), pages 1-15, May.
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    1. Elica Valkova & Vasil Atanasov & Milena Tzanova & Stefka Atanassova & Ivaylo Sirakov & Katya Velichkova & Margarita H. Marinova & Kristian Yakimov, 2022. "Content of Pb and Zn in Sediments and Hydrobionts as Ecological Markers for Pollution Assessment of Freshwater Objects in Bulgaria—A Review," IJERPH, MDPI, vol. 19(15), pages 1-25, August.

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