气候变化领域集成服务门户(CCPortal): Investigating the Sources of Formaldehyde and Corresponding Photochemical Indications at a Suburb Site in Shanghai From MAX-DOAS Measurements

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DOI	10.1029/2020JD033351
	Investigating the Sources of Formaldehyde and Corresponding Photochemical Indications at a Suburb Site in Shanghai From MAX-DOAS Measurements
	Zhang S.; Wang S.; Zhang R.; Guo Y.; Yan Y.; Ding Z.; Zhou B.
发表日期	2021
ISSN	2169897X
卷号	126 期号:6
英文摘要	Multi-AXis-Differential Optical Absorption Spectroscopy (MAX-DOAS) measurements were performed to obtain vertical distributions of nitrogen dioxide (NO2), formaldehyde (HCHO) and glyoxal (CHOCHO) from October 17 to November 21, 2019 in Qingpu, a suburb of Shanghai, China. The consistencies of MAX-DOAS and other independent observations of HCHO and NO2 verified the effectiveness of the inversion results. The secondary formation was identified as the predominant HCHO sources (57.4% of all) by a statistical regression analysis of HCHO with carbon monoxide (CO) and CHOCHO. The photochemical indications of HCHO were investigated through the ratios of HCHO to CHOCHO (RGF) and NO2 (RFN). The results showed that anthropogenic influence on RGF mainly existed in the layer of 0–800 m. The dependences of anthropogenic emission on RGF were negative in 0–200 m layer and positive in 200–800 m layer when NO2 level was higher than 5 ppbv. The sensitivity analysis of O3 formation in 0–2 km layer was concluded as follows: between 9:00 and 11:00 LT, the O3 formation was controlled by VOC-limited regime alone; while it turned into transition regime in 1.7–2 km layer from 11:00 to 13:00 LT; then the transition regime moved down to the layer of 1.3–1.4 km from 13:00 to 15:00 LT and the NOx-limited regime began to occur in 1.4–2.0 km layer. © 2021. The Authors.
语种	英语
来源期刊	Journal of Geophysical Research: Atmospheres
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/185403
作者单位	Shanghai Key Laboratory of Atmospheric Particle Pollution and Prevention (LAP3), Department of Environmental Science and Engineering, Fudan University, Shanghai, China; Institute of Eco-Chongming (IEC), Shanghai, China; Institute of Atmospheric Sciences, Fudan University, Shanghai, China; Research Institute of Petroleum Exploration & Development, PetroChina Company Limited, Beijing, China
推荐引用方式 GB/T 7714	Zhang S.,Wang S.,Zhang R.,et al. Investigating the Sources of Formaldehyde and Corresponding Photochemical Indications at a Suburb Site in Shanghai From MAX-DOAS Measurements[J],2021,126(6).
APA	Zhang S..,Wang S..,Zhang R..,Guo Y..,Yan Y..,...&Zhou B..(2021).Investigating the Sources of Formaldehyde and Corresponding Photochemical Indications at a Suburb Site in Shanghai From MAX-DOAS Measurements.Journal of Geophysical Research: Atmospheres,126(6).
MLA	Zhang S.,et al."Investigating the Sources of Formaldehyde and Corresponding Photochemical Indications at a Suburb Site in Shanghai From MAX-DOAS Measurements".Journal of Geophysical Research: Atmospheres 126.6(2021).