Investigation of Ground-Level Ozone and High-Pollution Episodes in a Megacity of Eastern China.
Investigation of Ground-Level Ozone and High-Pollution Episodes in a Megacity of Eastern China.
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中国东部特大城市地面臭氧及高污染事件调查
DOI：
10.1371/journal.pone.0131878
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发表时间：
2015
期刊：
影响因子：
3.7
通讯作者：
Zhou B
中科院分区：
文献类型：
--
作者：
Zhao H;Wang S;Wang W;Liu R;Zhou B
2010年3月至2013年3月，利用差分光学吸收光谱技术（DOAS）对上海地区地面臭氧（O3）进行了长期观测。O3的1小时平均浓度为27.2 ± 17.0 ppbv。春季O3浓度呈上升趋势，春末夏初达到峰值，秋季下降，冬季降至最低点。六月录得的臭氧最高月平均浓度（41.1 ppbv），是十二月录得的最低水平（15.2 ppbv）的近三倍。在污染事件方面，2010年有56个小时样本（14个独立日）超过了《中国环境空气质量标准》（CAAQS，修订版GB 3095-2012）二级标准规定的1小时臭氧限值200微克/立方米。利用混合单粒子拉格朗日积分轨道（HYSPLIT）模式，分析了上海金山化工区挥发性有机物（VOC）和高浓度O3的区域输送对高臭氧日数（HODs）的贡献。HODs表现出更高的HONO和NO2浓度比非发作条件，这意味着HODs期间高浓度的HONO能够增加O3浓度。HONO的光解速率估计，这表明，大量的OH自由基产生的高浓度的HONO有相当大的影响臭氧浓度。
Differential Optical Absorption Spectroscopy (DOAS) was used for the long-term observation of ground-level ozone (O3) from March 2010 to March 2013 over Shanghai, China. The 1-hour average concentration of O3 was 27.2 ± 17.0 ppbv. O3 level increased during spring, reached the peak in late spring and early summer, and then decreased in autumn and finally dropped to the bottom in winter. The highest monthly average O3 concentration in June (41.1 ppbv) was nearly three times as high as the lowest level recorded in December (15.2 ppbv). In terms of pollution episodes, 56 hourly samples (on 14 separate days) in 2010 exceeded the 1-hour ozone limit of 200 μg/m3 specified by the Grade II of the Chinese Ambient Air Quality Standards (CAAQS, revised GB 3095-2012). Utilizing the Hybrid Single Particle Lagrangian Integrated Trajectory (HYSPLIT) model, the primary contribution to high ozone days (HODs) was identified as the regional transportation of volatile organic compounds (VOC) and high concentrations of O3 from the chemical industrial zone in the Jinshan district of Shanghai. HODs showed higher concentrations of HONO and NO2 than non-episode conditions, implying that HONO at high concentration during HODs was capable of increasing the O3 concentration. The photolysis rate of HONO was estimated, suggesting that the larger number of OH radicals resulting from high concentrations of HONO have a considerable impact on ozone concentrations.
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影响因子：
3
作者：
Psiloglou, Basil E.;Larissi, Ioanna K.;Viras, Loisos G.
通讯作者：
Viras, Loisos G.
影响因子：
8.9
作者：
Screpanti, Augusto;De Marco, Alessandra
通讯作者：
De Marco, Alessandra
影响因子：
--
作者：
Contran N;Paoletti E
通讯作者：
Paoletti E
DOI：
10.1002/adic.200690039
发表时间：
2006-07-01
期刊：
ANNALI DI CHIMICA
影响因子：
--
作者：
Hao, Nan;Zhou, Bin;Chen, Limin
通讯作者：
Chen, Limin
生物质燃烧羽流对中国东部 HONO 化学的影响
影响因子：
6.3
作者：
Nie, W.;Ding, A. J.;Fu, C. B.
通讯作者：
Fu, C. B.