Source contribution analysis of tropospheric NO2 based on two-dimensional MAX-DOAS measurements
Source contribution analysis of tropospheric NO2 based on two-dimensional MAX-DOAS measurements
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基于二维MAX-DOAS测量的对流层NO2源贡献分析
DOI：
10.1016/j.atmosenv.2019.04.058
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发表时间：
2019-08
影响因子：
5
通讯作者：
Liu Wenqing
中科院分区：
文献类型：
--
作者：
Yang Taiping;Si Fuqi;Luo Yuhan;Zhan Kai;Wang Ping;Zhou Haijin;Zhao Minjie;Liu Wenqing
2015年6月至2016年5月在中国合肥连续收集了地面二维（2D）多轴差分光学吸收光谱（MAX-DOAS）测量的二氧化氮（NO2）。NO2浓度的空间分布特征表明，研究区东部和东南部空气污染较重，且位于城市中心和经济开发区。NO2浓度季节变化明显，冬季最高，夏季最低。采暖季（11月~次年3月）NO2平均浓度为6.56 ppbv，非采暖季（4月~ 10月）NO2平均浓度为4 ppbv。NO2、一氧化碳（CO）和PM2.5浓度最高值均出现在采暖季。潜在源贡献函数（PSCF）分析结果表明，夏季NO2污染主要来自东部的远距离输送，而冬季NO2污染主要受局地影响。结合气象轨迹气压廓线和气溶胶光学厚度（AODs）分析，发现采暖季NO2主要来源于局地排放，而非采暖季NO2主要来源于远距离输送。
Ground-based two-dimensional (2D) Multi-Axis Differential Optical Absorption Spectroscopy (MAX-DOAS) measurements of nitrogen dioxide (NO2) were collected continuously from June 2015 to May 2016 in Hefei, China. The spatial distribution of NO2concentrations showed that more air pollution was present in eastern and southeastern direction from the study site, and these areas were located in the center of the city and economic developing zone. The seasonal variations of NO2concentrations were distinct, and the highest levels were detected in winter, while the lowest levels were detected in summer. The mean concentration of NO2during the heating season (November–March of the following year) was 6.56 ppbv, while that during the non-heating season (April–October) was 4 ppbv. The highest concentrations of NO2, carbon monoxide (CO), and PM2.5were all observed during the heating season. The results from the potential source contribution function (PSCF) analysis suggested that NO2pollution in the summer was caused primarily by long-range transport from the east, while that in winter showed significant local influences. By combining the analyses of meteorological trajectory pressure profiles and aerosol optical depths (AODs), the sources of NO2during the heating season were found to be mainly local emissions, while those during the non-heating season were mainly from long-range transportation.
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DOI：
10.3878/j.issn.1006-9585.2012.12131
发表时间：
2014
期刊：
Climatic and Environmental Research
影响因子：
--
作者：
王婷;王普才;余环;孙丽
通讯作者：
王婷;王普才;余环;孙丽
DOI：
--
发表时间：
2014
期刊：
Climatic and Environmental Research
影响因子：
--
作者：
W. Tin
通讯作者：
W. Tin
影响因子：
6.3
作者：
Yingruo Li;C. Ye;Jun Liu;Yi Zhu;Junxia Wang;Z. Tan;Weili Lin;L. Zeng;T. Zhu
通讯作者：
Yingruo Li;C. Ye;Jun Liu;Yi Zhu;Junxia Wang;Z. Tan;Weili Lin;L. Zeng;T. Zhu
影响因子：
5.8
作者：
Khokhar, Muhammad Fahim;Nisar, Munazza;Hakeem, Khalid Rehman
通讯作者：
Hakeem, Khalid Rehman
通过卫星观测估算污染背景下城市和发电厂的氮氧化物寿命和排放量
影响因子：
6.3
作者：
Liu, Fei;Beirle, Steffen;Wagner, Thomas
通讯作者：
Wagner, Thomas