| Mercury pollution in the atmosphere-soil-biology ecosystem along the trunk road in Guilin |
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| 作者姓名： | Jianping QIAN Li ZHANG Jun YE Huazhen CHEN Yanpeng LIANG Baozhang LIU |
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| 作者单位： | Department of Resources and Environmental Engineer, Guilin University of Technology, Guilin 541004, China |
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| 摘 要： | Based on the mercury distribution in soil, atmosphere and plant in seven sections beside the trunk road, some advances are obtained： （1） Mercury content of fuel oil of petrol station in Guilin is 3.66-9.74 ng/g, higher than that reported by other countries （0.7-3.2 ng/g）. The higher the number of petrol, the lower the content. Number 90 petrol widely used is the highest （9.74 ng/g）. （2） Mercury content in soil is commonly 0.30-0.80 μg/g near the road, （0.30-2.60 μg/g） besides the street, both are higher than the average of Guilin background value （0.204 μg/g）. Mercury content in vegetable near the road is generally 0.025-0.055 μg/g, higher than that far away from the road （0.022-0.038 μg/g）. The content in cinnamon leaves on both sides of the street is 0.06-0.16 μg/g, also higher than that far away from the street （0.051-0.067 μg/g）. Guilin Highway atmospheric mercury content is usually 7-12 ng/m^3, higher than the mean background value （4.4-6.6 ng/m^3）. Atmospheric mercury content near rural roads is below the level on urban roads. The atmospheric mercury content increases apparently in traffic-intensive stations and intersections. （3） The average concentration of mercury in vegetables is mostly 0.025-0.055 μg/g. Mercury content in various tissues of vegetable follows the order of leaves （mostly 0.044）.09 μg/g）〉roots （mostly 0.02-0.05 lag/g）〉stems （mostly 0.01-0.04 μg/g）. （4） The distribution of mercury in soil, plants and atmosphere near the road is of certain similarity, with a single peak, nearly symmetrical. As far away from road, the content reduces gradually, which shows the release of exhaust gas mercury is the main source of atmospheric mercury pollution.
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| 关 键 词： | 水银 环境污染 环境地球化学 生态系统 桂林市 |
Mercury pollution in the atmosphere-soil-biology ecosystem along the trunk road in Guilin |
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| Jianping QIAN Li ZHANG Jun YE Huazhen CHEN Yanpeng LIANG Baozhang LIU.Mercury pollution in the atmosphere-soil-biology ecosystem along the trunk road in Guilin[J].Chinese Journal of Geochemistry,2006,25(B08):240-240. |
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| Abstract: | |
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| Keywords: | mercury pollution exhaust gas environmental geochemistry atmosphere-soil-biology ecosystem Guilin |
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