| 江汉平原大气污染源分析 |
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| 引用本文： | 李定远,石德强,申锐莉,胡绍祥,杨军,李中林,潘龙克.江汉平原大气污染源分析[J].现代地质,2008,22(6). |
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| 作者姓名： | 李定远 石德强 申锐莉 胡绍祥 杨军 李中林 潘龙克 |
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| 作者单位： | 1. 湖北省地质调查院,湖北,武汉,430022
2. 湖北省鄂西北地质矿产调查所,湖北,襄樊,441003 |
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| 基金项目： | 湖北省江汉流域经济区农业地质调查项目
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| 摘 要： | 通过选择不同的环境功能区布置大气干湿沉降样点,分析重金属污染元素和有机氯农药的颗粒态与溶解态指标,计算季沉降通量和年沉降总量,了解其随季节变化的规律,分析比较不同地貌条件、不同城市及不同污染源区对其沉降的源贡献。结果表明:大气对江汉平原重金属的输入途径以降水为主;重金属元素颗粒物在平原区的沉降通量略高于岗丘地区;武汉市高于其他城市;工业污染源区明显高于一般农田区;三类污染源区相比,颗粒态为烟尘>化工尘>交通尘,溶解态为化工尘>交通尘>烟尘(个别元素除外),且大气降水中的营养元素N、K、Fe在化工工业区较为富集,而P的沉降在烟尘和化工工业区则受到一定程度的抑制。两种主要有机氯农药不同异构体间的组分关系表明本区环境中近期仍有林丹输入。
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| 关 键 词： | 大气干湿沉降 输入通量 重金属元素 有机氯农药 江汉平原 |
Analysis on Source Apportionment of Atmosphere Particulates in Jianghan Plain,China |
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| LI Ding-yuan,SHI De-qiang,SHEN Rui-li,HU Shao-xiang,YANG Jun,LI Zhong-lin,PAN Long-ke.Analysis on Source Apportionment of Atmosphere Particulates in Jianghan Plain,China[J].Geoscience——Journal of Graduate School,China University of Geosciences,2008,22(6). |
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| Authors: | LI Ding-yuan SHI De-qiang SHEN Rui-li HU Shao-xiang YANG Jun LI Zhong-lin PAN Long-ke |
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| Abstract: | The atmospheric dry/wet deposition samples are collected from different environmental function districts in order to analyze particulate and dissolved indexes of heavy metals and organochlorine pesticides(OCPs) respectively.Furthermore,seasonal deposition flux and annual deposition total are calculated and applied to the case study,based on acquiring the seasonal change rules,the contribution of different geomorphic condition,cities and pollution source areas to deposition sources are compared.The results indicate as follows: atmosphere transports the heavy metals into Jianghan Plain by means of precipitation mainly.With respect to the atmospheric deposition amount,the plain's is a little higher than that of hilly area and hilly land plain area,and Wuhan's is higher than that of other cities,as well as industrial pollution areas,which amounts are much higher than the agrarian areas'.Taking three pollution source areas for comparison,the results are as follows:as particulate deposition of heavy metals,smoke dust> chemical industry dust > transportation dust;as dissolved deposition of heavy metals,chemical industry dust > transportation dust> smoke dust(expect for individual elements).The nutrient elements in atmospheric precipitation,such as N,K and Fe,are enriched relatively in chemical industry area.However,it is to a certain degree that P deposition is restrained in smoke dust and chemical industry area.Finally,the lindane still joins the local environment recently,which is concluded according to the different component relations of isomer between two different kinds of OCPs. |
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| Keywords: | atmospheric dry/wet deposition input flux heavy metal elements OCPs Jianghan Plain |
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