| 天津武清地区夏季臭氧光化学研究 |
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| 引用本文： | 岳婷婷,柴发合,张新民,张 凯,王淑兰,陈义珍.天津武清地区夏季臭氧光化学研究[J].环境科学研究,2009,22(1):23-27. |
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| 作者姓名： | 岳婷婷 柴发合 张新民 张 凯 王淑兰 陈义珍 |
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| 作者单位： | 中国环境科学研究院 区域与城市大气环境研究室,北京 100012 |
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| 摘 要： | 利用2006年8月10日—9月18日的监测数据，分析天津市武清区光化学污染特征. 结果表明:监测期间φ(O3)的小时均值累积共有26 h超标，超标率为2.7%；光化学污染发生时，ρ(NOx)和挥发性有机物(VOCs)的反应活性都有所升高，其中ρ(NO2)平均约升高了20 μg/m3， VOCs的反应活性增加了42%，但是臭氧对于ρ(NOx)的增加更加敏感. 计算VOCs等效丙烯浓度，发现邻二甲苯的臭氧生成潜势最高. 烯烃的光化学反应活性最强，其次是单环芳烃和烷烃.
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| 关 键 词： | 臭氧 NOx VOCs 等效丙烯浓度 |
| 收稿时间： | 2008/3/6 0:00:00 |
| 修稿时间： | 2008/5/20 0:00:00 |
Ozone Photochemistry in Summer in Wuqing, Tianjin |
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| YUE Ting-ting,CHAI Fa-he,ZHANG Xin-min,ZHANG Kai,WANG Shu-lan and CHEN Yi-zhen.Ozone Photochemistry in Summer in Wuqing, Tianjin[J].Research of Environmental Sciences,2009,22(1):23-27. |
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| Authors: | YUE Ting-ting CHAI Fa-he ZHANG Xin-min ZHANG Kai WANG Shu-lan and CHEN Yi-zhen |
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| Institution: | Laboratory for Urban & Regional Atmospheric Environment, Chinese Research Academy of Environmental Science, Beijing 100012, China |
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| Abstract: | Data collected from 2006-08-10 to 2006-09-18 were analyzed to study the photochemical pollution in Wuqing District, Tianjin. 26 average hourly values of ozone exceeded the national air quality standard during the monitoring periodand accounted for 2.7% of observed values. When photochemical pollution occurred, ρ(NOx) and activity of volatile organic compounds (VOCs) increased; ρ(NO2) increased by 20 μg/m3 and VOCs increased by 42%. However, O3 was even more sensitive to increased ρ(NOx). o-Xylene was the largest contributor to ozone formation according to equivalent propylene concentrations of hydrocarbons. The most reactive category in hydrocarbons were alkenes, then aromatic hydrocarbons and alkanes. |
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| Keywords: | NOx VOCs |
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