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| Reviews of studies on heavy metals in coal gangues |
| Sun Chang'an1,2,Yin Zhongdong2,Zhou Xincheng2 |
1.Water Conservancy Commission of the Yangtse River,Water Resources Ministry, 430010,Wuhan;2.College of Soil and Water Conservation,Beijing Forestry
University,100083, Beijing: China |
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Abstract Having analyzed the heavy metal concentrations in the coal gangue as well as the soil,water,atmosphere and the plants nearby,we have found that: 1) the majority of our countries' coal gangue belongs to the ordinary solid rejects and the heavy mental elements doesn't exceed too much of the standard;2) the coal gangue doesn't have much influence on the soil,water and atmosphere in the neighborhood,neither does it suit cultivating food products;3) most of the vegetables grown on the restored gangues lands contain more heavy metal elements than allowed.
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Received: 17 March 2006
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