| 拉萨市城区大气和拉鲁湿地土壤中的多环芳烃 |
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| 引用本文： | 祁士华,张干,刘建华,张伟玲.拉萨市城区大气和拉鲁湿地土壤中的多环芳烃[J].中国环境科学,2003,23(4):0-0. |
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| 作者姓名： | 祁士华 张干 刘建华 张伟玲 |
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| 作者单位： | 1.中国科学院广州地球化学研究所有机地球化学国家重点实验室 广东广州510640;2.中国地质大学地球科学学院 湖北武汉430074 |
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| 基金项目： | 中国科学院前沿研究课题: 我国华南地区POPs的地-气交换与大气输移过程研究 |
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| 摘 要： | 对拉萨城区大气及郊区湿地土壤中多环芳烃的研究表明,大气中的多环芳烃,颗粒物占27.69%,气相状态占72.31%;由于高原高强度的紫外线辐射,无论是颗粒相还是气相状态存在的多环芳烃含量均是夜晚高于白天;颗粒物中的多环芳烃主要为3个苯环数以上的,而气相状态的多环芳烃多为2和3个苯环数的芳烃及芘.湿地土壤中的多环芳烃主要来自于大气,其中气相状态占52.56%,颗粒物占47.44%.
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| 关 键 词： | 拉萨市 城区大气 湿地土壤 多环芳烃 |
| 文章编号： | 1000-6923(2003)04-0349-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2002年12月27 |
Polycyclic aromatic hydrocarbons(PAHs) of urban atmosphere in Lhasa City and in Soil of Lharu wetland |
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| QI Shi-hua,ZHANG Gan,LIU Jian-hua,ZHANG Wei-ling.Polycyclic aromatic hydrocarbons(PAHs) of urban atmosphere in Lhasa City and in Soil of Lharu wetland[J].China Environmental Science,2003,23(4):0-0. |
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| Authors: | QI Shi-hua ZHANG Gan LIU Jian-hua ZHANG Wei-ling |
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| Affiliation: | QI Shi-hua1,2,ZHANG Gan1,LIU Jian-hua2,ZHANG Wei-ling1 |
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| Abstract: | The primary results of studies on polycyclic aromatic hydrocarbons (PAHs) in urban atmosphere of Lhasa City and in soil of Lharu wetland are introduced. Airborne PAHs in particulate phase occupied the contribution of 27.69%; and gas phase state PAHs occupied 72.31%; the content of PAHs no matter existing in particulate phase or gas phase state was all higher at night than at day because of the strong ultraviolet radiation in the plateau. There was mainly the PAHs possessing more than 3 benzene rings in particulate; while PAHs of gas phase state concentrated in the PAHs and pyrene of 2 or 3 benzene rings. The PAHs in wetland soil came mainly from atmosphere, in which the PAHs existed as gas phase state contributed 52.56% and PAHs as particulate phase contributed 47.44%. |
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| Keywords: | Lhasa City urban atmosphere wetland soil polycyclic aromatic hydrocarbons (PAHs) |
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