| 青海瓦里关大气中多环芳烃的研究 |
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| 引用本文： | 成海容,张干,刘向,李军,祁士华,赵玉成. 青海瓦里关大气中多环芳烃的研究[J]. 中国环境科学, 2006, 26(6): 0-0 |
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| 作者姓名： | 成海容 张干 刘向 李军 祁士华 赵玉成 |
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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.中国地质大学生物地质与环境地质教育部重点实验室 湖北武汉430074;3.瓦里关全球大气本底基准观测台 青海西宁810001 |
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| 摘 要： | 2005年4月2日～5月23日,对瓦里关大气中的气相和颗粒相多环芳烃(PAHs)进行了连续观测.结果表明,总PAHs浓度为7.43～29.96ng/m3,气相PAHs的浓度为7.01～26.10ng/m3,颗粒相PAHs的浓度为0.28～7.84ng/m3,气相中PAHs占总浓度的66.5%～98.8%.气粒分配系数(Kp)与过冷饱和蒸汽压(PL0)呈良好相关性(R2=0.67～0.92),斜率(mr)均>-1.瓦里关大气中PAHs的浓度受温度、风速、大气逆温层、大气长距离迁移等因素的影响.
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| 关 键 词： | 多环芳烃 瓦里关 分布特征 气-粒分配 长距离迁移 |
| 文章编号： | 1000-6923(2006)06-0646-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2006-04-27 |
Studies on polycyclic aromatic hydrocarbons in the atmosphere of Waliguan, Qinghai |
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| CHENG Hai-rong,ZHANG Gan,LIU Xiang,LI Jun,QI Shi-hua,ZHAO Yu-cheng. Studies on polycyclic aromatic hydrocarbons in the atmosphere of Waliguan, Qinghai[J]. China Environmental Science, 2006, 26(6): 0-0 |
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| Authors: | CHENG Hai-rong ZHANG Gan LIU Xiang LI Jun QI Shi-hua ZHAO Yu-cheng |
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| Abstract: | The gas phase and particle phase polycyclic aromatic hydrocarbons(PAHs)in the atmosphere of Waliguan were investigated consecutively from April 2 to May 23,2005 year.The total PAHs concentration was 7.43~29.96ng/m3.The gas phase PAHs concentration was 7.01~26.10ng/m3,the particle phase PAHs concentration was 0.28~7.84ng/m3,the gas phase PAHs occupied 66.5%~98.8% of the total concentration.The gas-particle partitioning coefficient(Kp)presented good relation with sub-cooled saturation vapor pressure(PL0)(R2=0.67~0.92),slop(mr)all >-1.The PAHs concentration in the atmosphere of Waliguan was influenced by the factors of temperature,wind speed,atmospheric temperature inversion layer and atmospheric long-range transport. |
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| Keywords: | polycyclic aromatic hydrocarbons Waliguan distribution characteristic gas-particle partitioning long-range transport |
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