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Heavy Metal Pollution in Settled Dust Associated with Different Urban Functional Areas in a Heavily Air-Polluted City in North China

Author

Listed:
  • Dejun Wan

    (College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China)

  • Zhangxiong Han

    (Provincial Key Laboratory of Mineral Exploration and Utilization, Xi’an 710054, China)

  • Jinsong Yang

    (Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China)

  • Guanglin Yang

    (Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang 050061, China)

  • Xingqi Liu

    (College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China)

Abstract

Understanding variations of heavy metals in atmospheric particles between different functional areas is significant for pollution control and urban planning in cities. To reveal pollution and spatial distribution of heavy metals in atmospheric particles from different urban functional areas in Shijiazhuang in North China, 43 settled dust samples were collected over the main urban area and heavy metal concentrations were determined in their <63 μm fractions using an ICP-OES. The results suggest that Cr, Mn, Fe, Co, Ni, and V in the dust are not or slightly enriched and their concentrations vary slightly between different sites, implying their natural origins; whereas Cu, Zn, Cd, and Pb are often notably enriched and their concentrations vary significantly between different functional areas, indicating their anthropogenic sources. Integrated pollution indexes (IPIs) of the ten heavy metals are 2.7–13.6 (5.7 ± 2.2), suggesting high or very high pollution levels of most dust. Relatively lower IPIs occur mainly in the administration-education area, the commercial area, and other unclassified sites; while peaks occur mainly in the North Railway Station, the northeastern industrial area, and some sites near heavily trafficked areas, implying the significant influence of intensive industrial (including coal combustion) and traffic activities on atmospheric heavy metal accumulation. These results suggest a clear need of mitigating atmospheric heavy metal pollution via controlling emissions of toxic metals (especially Cd and Pb) from industrial and traffic sources in the city.

Suggested Citation

  • Dejun Wan & Zhangxiong Han & Jinsong Yang & Guanglin Yang & Xingqi Liu, 2016. "Heavy Metal Pollution in Settled Dust Associated with Different Urban Functional Areas in a Heavily Air-Polluted City in North China," IJERPH, MDPI, vol. 13(11), pages 1-13, November.
    • Handle: RePEc:gam:jijerp:v:13:y:2016:i:11:p:1119-:d:82552
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    References listed on IDEAS

    as
    1. Dejun Wan & Changlin Zhan & Guanglin Yang & Xingqi Liu & Jinsong Yang, 2016. "Preliminary Assessment of Health Risks of Potentially Toxic Elements in Settled Dust over Beijing Urban Area," IJERPH, MDPI, vol. 13(5), pages 1-15, May.
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    Cited by:

    1. Vidhu Gupta & Lalita Bisht & Ajay Kumar Arya & Ajay Pratap Singh & Sneha Gautam, 2022. "Spatially Resolved Distribution, Sources, Exposure Levels, and Health Risks of Heavy Metals in <63 μm Size-Fractionated Road Dust from Lucknow City, North India," IJERPH, MDPI, vol. 19(19), pages 1-23, October.

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