| 大气中多环芳烃气固相分配与颗粒物粒径的关系 |
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| 引用本文： | 陆晨刚,李春雷,陈立民.大气中多环芳烃气固相分配与颗粒物粒径的关系[J].中国环境科学,2006,26(2):0-0. |
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| 作者姓名： | 陆晨刚 李春雷 陈立民 |
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| 作者单位： | 复旦大学环境科学与工程系 上海200433 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 采集了2005年5月16日～6月3日上海市桃浦地区气相样品、TSP样品及不同粒径的颗粒物样品.用GC-MS对各样品中美国EPA规定优先控制的16种多环芳烃(PAHs)做了定量分析.结果表明,大气中PAHs的气固相分配系数(KP)和各物质的过冷饱和蒸气压(pl0)呈良好的线性相关.多元线性回归分析表明,PAHs的气固相分配受颗粒物粒径大小的影响,粒径越大,对PAHs的气固相分配影响越大;过冷饱和蒸气压越高,气固相分配越易受到粒径大小的影响.
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| 关 键 词： | 多环芳烃 粒径分布 气固相分配系数 过冷饱和蒸气压 |
| 文章编号： | 1000-6923(2006)02-0153-04 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2005年7月7日 |
The correlation of size distribution and gas/particle partitioning of atmospheric polycyclic aromatic hydrocarbons (PAHs) |
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| LU Chen-gang,LI Chun-lei,CHEN Li-min.The correlation of size distribution and gas/particle partitioning of atmospheric polycyclic aromatic hydrocarbons (PAHs)[J].China Environmental Science,2006,26(2):0-0. |
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| Authors: | LU Chen-gang LI Chun-lei CHEN Li-min |
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| Abstract: | Gas- and particle-phase (TSP and its size distributions) air samples collected in TaoPu area in Shanghai from 16 May to 3 June, 2005 have been analyzed for 16 priority-controlled polycyclic aromatic hydrocarbons (PAHs) by gas chromatography with mass selective detection (GC-MS). The gas/particle partition coefficients (KP) of PAHs were well correlated with their sub-cooled liquid vapor pressure (pl0). However, multiple linear regression analysis showed that particle sizes also had effects on the KP of PAHs, and the effects increased with larger particle size and higher pl0. |
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| Keywords: | polycyclic aromatic hydrocarbons size distribution gas/particle partition coefficient (KP) sub-cooled liquid vapor pressure (pl0) |
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