[1]JIA Ruiyu,ZHU Wanyong,LI Nan,et al.Heavy Metal Contents and Ecological Risk Assessment of Soils and Dust in Urban Parks of Xi’an City[J].Research of Soil and Water Conservation,2015,22(05):316-320.
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Heavy Metal Contents and Ecological Risk Assessment of Soils and Dust in Urban Parks of Xi’an City
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 05
Page number:
316-320
Column:
Public date:
2015-10-28
- Title:
- Heavy Metal Contents and Ecological Risk Assessment of Soils and Dust in Urban Parks of Xi’an City
- Keywords:
- heavy metals; pollution; risk assessment; park of Xi’an City
- CLC:
- X513;X826
- DOI:
- -
- Abstract:
- The surface soils and dust of six parks in urban areas of Xi’an City were sampled and analyzed. Single contamination index method, comprehensive contamination index method and potential ecological risk index method were used to evaluate heavy metal contamination. Multivariate statistical analysis was used to explore the relationship between heavy metals of the soil and the dust. Results showed that concentrations of all five heavy metals surveyed including Cu, Cd, Zn, Pb and Cr were higher than the soil element background values of Shaanxi Province. Surface soil and dust were mainly polluted by Pb, Cu and Cd. Heavy metal contamination levels of soil and dust were mostly middle/heavy pollution and heavy pollution respectively, the potential ecological risk of heavy metal pollution of soils in the parks was slight, the potential ecologic risks of heavy metal pollution of dust in Daming Palace Ruins Park, Revolution Park, Qujiang Pool Park and Lianhu Park were at high-very high level, especially the risk of Cd pollution of surface dust in Daming Palace Ruins Park was much higher, up to 978.33. Very obvious and obvious relationship was observed between the corresponding heavy metals such as Cu, Cr and Pb in surface soils and dust.
- References:
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