[1]ZHANG Lianke,LI Yanwei,LI Yumei,et al.Vertical Distribution Characteristics and Speciation Analysis of Heavy Metals in Topsoils Around a Copper Plant of Baotou[J].Research of Soil and Water Conservation,2016,23(05):354-358.
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Vertical Distribution Characteristics and Speciation Analysis of Heavy Metals in Topsoils Around a Copper Plant of Baotou
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
23
Number of periods:
2016 05
Page number:
354-358
Column:
Public date:
2016-10-28
- Title:
- Vertical Distribution Characteristics and Speciation Analysis of Heavy Metals in Topsoils Around a Copper Plant of Baotou
- Keywords:
- soil; heavy metal; vertical distribution; speciation analysis; potential biological availability
- CLC:
- X53
- DOI:
- -
- Abstract:
- In order to investigate heavy metal contamination in a copper plant of Baotou City， the flame atomic absorption spectrophotometry and Tessiers sequential chemical extraction technique were adopted to study the vertical distribution characteristics, speciation analysis and potential biological availability analyses of heavy metals (Cu, Zn, Mn, Ni, Pb and Cd) in the soils. The results showed that the six heavy metal elements in the soils exceeded the Inner Mongolia soil background contents, Cu, Pb and Cd were the main pollutants. With the increase of the depth, the concentrations of Cu, Zn, Pb and Mn generally decrease, according to the correlation coefficients， the Cu, Zn and Pb indicate to have the same anthropogenic or natural sources of pollution. The residual fraction was dominant for the six heavy metals, contents were over 50% of the total, less damaging. The result showed the potential biological availability of heavy metal pollution followed the order: Cu (32.61%) > Mn (31.85%) > Ni (24.90%) > Zn (16.60%) > Cd (15.23%) > Pb (14.87%), the potential biological availability of Cu and Mn was relatively high, and the potential biological availability of Ni, Zn, Cd and Pb was lesser.
- References:
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