Observations of SO 2 and NO 2 by mobile DOAS in the Guangzhou eastern area during the Asian Games 2010
Observations of SO 2 and NO 2 by mobile DOAS in the Guangzhou eastern area during the Asian Games 2010
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DOI：
10.5194/amt-6-2277-2013
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发表时间：
2013-09
影响因子：
3.8
通讯作者：
F. Wu;P. Xie;A. Li;K. Chan;A. Hartl;Yang Wang;F. Si;Y. Zeng;M. Qin;Jin Xu;
中科院分区：
文献类型：
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作者：
F. Wu;P. Xie;A. Li;K. Chan;A. Hartl;Yang Wang;F. Si;Y. Zeng;M. Qin;Jin Xu;
抽象的。利用移动的被动差分吸收光谱技术，于2010年11月至2010年12月在广州亚运会期间对广州东部地区的SO2和NO2进行了测量。观察在10：00至13：00（当地时间，即，在白天）。利用风场资料，得到了该地区SO2和NO2的时空分布特征，并确定了排放源。NO2垂直柱密度被认为是同意臭氧监测仪器值。在特定地面像素内的云过滤之后，相关系数（称为R2）为0.88。以广州亚运会和亚残运会（帕拉）为例，采用平均风速和平均风向对该区域SO2和NOx的排放量进行了定量分析。在奥运会以外的时间，二氧化硫的平均排放量估计为每小时9.50 ± 0.90吨，氮氧化物的平均排放量估计为每小时5.87 ± 3.46吨。在亚运会和亚帕拉运动会期间，SO2和NOx的排放量分别比平时减少了53.50%和43.50%。我们还调查了GEA对位于GEA西北部的广州大学城的影响，发现GEA的排放使这里的SO2浓度增加了约两倍。
Abstract. Mobile passive differential optical absorption spectroscopy measurements of SO2 and NO2 were performed in the Guangzhou eastern area (GEA) during the Guangzhou Asian Games 2010 from November 2010 to December 2010. The observations were carried out between 10:00 to 13:00 (local time, i.e., during daylight). Spatial and temporal distributions of SO2 and NO2 in this area were obtained and emission sources were determined using wind field data. The NO2 vertical column densities were found to agree with Ozone Monitoring Instrument values. The correlation coefficient (referred to as R2) was 0.88 after cloud filtering within a specific ground pixel. During the Guangzhou Asian Games and Asian Paralympics (Para) Games, the SO2 and NOx emissions in the area were quantified using averaged wind speed and wind direction. For times outside the games the average SO2 emission was estimated to be 9.50 ± 0.90 tons per hour and the average NOx emission was estimated to be 5.87 ± 3.46 tons per hour. During the phases of the Asian and Asian Para Games, the SO2 and NOx emissions were reduced by 53.50% and 43.50%, respectively, compared to the usual condition. We also investigated the influence of GEA on Guangzhou University Town, the main venue located northwest of the GEA, and found that SO2 concentrations here were about tripled by emissions from the GEA.