Observation on the aerosol and ozone precursors in suburban areas of Shenzhen and analysis of potential source based on MAX-DOAS

作     者：Hairong Zhang Ang Li Zhaokun Hu Hongmei Ren Hongyan Zhong Jianfeng Guo Long Yun Mingdi Zhang Hairong Zhang;Ang Li;Zhaokun Hu;Hongmei Ren;Hongyan Zhong;Jianfeng Guo;Long Yun;Mingdi Zhang

作者机构：Key Laboratory of Environmental Optics and TechnologyAnhui Institute of Optics and Fine MechanicsHefei Institutes of Physical ScienceChinese Academy of SciencesHefei 230031China University of Science and Technology of ChinaHefei 230026China Institutes of Physical Science and Information TechnologyAnhui UniversityHefei 230601China Shenzhen Environmental Monitoring Center StationShenzhen 518049China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2023年第132卷第10期

页      面：109-121页

核心收录：

学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 

基　　金：supported by the National Natural Science Foundation of China(No.41775029) the National Key Research and Development Project of China(No.2018YFC0213201) the Science and Technology Commission of Shanghai Municipality(No.17DZ1203102) 

主　　题：Multi-axial differential optical absorption spectroscopy (MAX-DOAS) Nitrogen dioxide(NO2) Formaldehyde(HCHO) Potential source contribution function(PSCF) 

摘      要：Long-term stereoscopic observations of aerosol,NO2,and HCHO were carried out at the Yangmeikeng(YMK)site in *** optical depths and NO2 vertical column concentration(NO2 VCD)derived from MAX-DOAS were found to be consistent with other *** total NO2 VCD values of the site remained low,varying from 2×10^(15)to 8×10^(15)mol/cm^(2),while the HCHO VCD was higher than NO2 VCD,varying from 7×10^(15)to 11×10^(15)mol/cm^(2).HCHO VCD was higher from September to early November than that was from mid-late November to December and during February 2021,in contrast,NO2 VCD did not change much during the same *** January,NO2 VCD and HCHO VCD were both fluctuating *** temperature and HCHO level in the YMK site is not only driving the ozone production up but alsomay be driving up the ozone concentration as well,and the O_(3)production regime in the YMK site tends to be *** various altitudes,backward trajectory clustering analysis and Potential Source Contribution Function(PSCF)were utilized to identify possible NO2 and HCHO source *** results suggested that the Huizhou-Shanwei border and the Daya Bay Sea area were the key potential source locations in the lower(200 m)and middle(500 m)atmosphere(WPSCF0.6).The WPSCF valuewas high at the 1000maltitude whichwas closer to the YMKsite than the near ground,indicating that the pollution transport capability in the upper atmosphere was limited.