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| Contents, Sources and Contamination Assessment of Soil Heavy Metals in Gold Mine Area of Upstream Part of Miyun Reservoir, Beijing, China |
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| KeyWord:goldmine; soil; heavy metals; multivariate analysis; enrichment factor; index of geoaccumulation |
| Author Name | Affiliation | | LI Qian | Civil ＆ Environment Engineering School, University of Science ＆ Technology Beijing, Beijng 100083, China
National Environment ＆ Energy International Cooperation, University of Science ＆ Technology Beijing, Beijng 100083, China | | QIN Fei | Civil ＆ Environment Engineering School, University of Science ＆ Technology Beijing, Beijng 100083, China
National Environment ＆ Energy International Cooperation, University of Science ＆ Technology Beijing, Beijng 100083, China | | JI Hong-bing | Civil ＆ Environment Engineering School, University of Science ＆ Technology Beijing, Beijng 100083, China
National Environment ＆ Energy International Cooperation, University of Science ＆ Technology Beijing, Beijng 100083, China
The Key Laboratory of Metropolitan Eco-Environmental Processes, College of Resource Environment and Tourism, Capital Normal University, Beijing 100048, China | | FENG Jin-guo | Beijing Geo-engineering Design and Research Institute, Beijing 101500, China | | HUANG Xing-xing | Civil ＆ Environment Engineering School, University of Science ＆ Technology Beijing, Beijng 100083, China
National Environment ＆ Energy International Cooperation, University of Science ＆ Technology Beijing, Beijng 100083, China |
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| Abstract: |
| In this investigation, concentrations of heavy metals（Be, V, Co, Ni, Cu, Cd, Pb） in soils were determined by inductively coupled plasma mass spectrometry（ＩＣＰ－ＭＳ）. Soil As, Hg were measured by atomic fluorescence spectrometry（ＡＦＳ）. X-ray diffraction（ＸＲＤ） was used to analyzed the mineral composition of soil. The average concentrations of heavy metals in the soils had exceeded the background values of Beijing soils except As. The minerals were very similar among soils and composed of quartz, feldspar, illite, kaolinite, smectite and calcite. Multivariate analysis（principle component analysis, cluster analysis, and correlation analysis） showed that（１）soil Cu, Cd, Pb and Hg had come mainly from anthropogenic sources via mineral exploitation and transportation activities; （２）Be, V, Ni and Co were associated with a mixed sources through both mineral exploitation and the soil background; and（３）As had derived from the weathering of rock and soil parent materials. Assessments by enrichment factor and geoaccumulation index showed that the soils were seriously polluted by Cu, Cd, Pb, and Hg, which were profoundly influenced by human activities, whereas slightly by Be, V, Co, and Ni. Arsenic had not contaminated the soils yet. |
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