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Environmental Earth Sciences

, Volume 71, Issue 5, pp 2095–2104 | Cite as

Contamination assessment and health risk of heavy metals in dust from Changqing industrial park of Baoji, NW China

  • Lijun Wang
  • Xinwei LuEmail author
  • Chunhui Ren
  • Xiaoxue Li
  • Cancan Chen
Original Article

Abstract

The contents of Co, Cr, Cu, Mn, Ni, Pb and Zn in the dust samples collected from Changqing industrial park of Baoji city, NW China, were measured by XRF, while As and Hg in the dust samples were analyzed by AFS. Geo-accumulation index (I geo), pollution index (PI) and integrated pollution index (IPI) were calculated to evaluate the heavy metal contamination level of dust. The health risk due to exposure to heavy metals in dust was analyzed by the Health Risk Assessment Model of US EPA. The results show that the arithmetic means of As, Co, Cr, Cu, Hg, Mn, Ni, Pb and Zn are 23.3, 16.4, 1591.8, 178.2, 0.243, 346.5, 40.2, 1,586.2 and 1,918.8 mg kg−1, respectively, which are higher than the background values of Shaanxi soil, especially for Cr, Cu, Hg, Pb, and Zn. The mean values of I geo reveal the order of Pb > Zn > Cr > Hg > Cu > As > Co > Ni > Mn. The high I geo of Cr, Cu, Hg, Pb and Zn in dust indicates that there is considerable pollution from Cr, Cu, Hg, Pb and Zn, while the low I geo of As, Co, Mn and Ni presents no pollution in dust. The assessment results of PI support the results of I geo, and IPI indicates heavy metals in dust polluted seriously. The health risk assessment shows that ingestion of dust particles is the route for exposure to heavy metals from dust, followed by dermal adsorption. Exposure to As, Cr and Pb from dust may pose a potential health threat to children and adults. The risk of cancer from As, Co, Cr and Ni due to dust exposure is low.

Keywords

Heavy metal Pollution assessment Health risk Dust Baoji 

Notes

Acknowledgments

The research was supported by the National Natural Science Foundation of China through Grant 41271510 and the Fundamental Research Funds for the Central University through Grants GK 201305008, GK 201302032 and GK 201101002. Appreciation is expressed to Editor Prof. Dr. O. Kolditz and the anonymous reviewers for their insightful suggestions and critical reviews of the manuscript.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  • Lijun Wang
    • 1
  • Xinwei Lu
    • 1
    • 2
    Email author
  • Chunhui Ren
    • 1
  • Xiaoxue Li
    • 1
  • Cancan Chen
    • 1
  1. 1.School of Tourism and EnvironmentShaanxi Normal UniversityXi’anPeople’s Republic of China
  2. 2.Institute of Earth EnvironmentChinese Academy of SciencesXi’anPeople’s Republic of China

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