| Title: | Assessing the Ratios of Formaldehyde and Glyoxal to NO(2) as Indicators of O(3)-NO(x)-VOC Sensitivity |
| Author(s): | Liu J; Li X; Tan Z; Wang W; Yang Y; Zhu Y; Yang S; Song M; Chen S; Wang H; Lu K; Zeng L; Zhang Y; |
| Address: | "State Key Joint Laboratory of Environmental Simulation and Pollution Control, College of Environmental Sciences and Engineering, Peking University, Beijing 100871, China. International Joint Laboratory for Regional Pollution Control, Ministry of Education, Beijing 100816, China. Collaborative Innovation Centre of Atmospheric Environment and Equipment Technology, Nanjing University of Information Science & Technology, Nanjing 210044, China. Institute of Energy and Climate Research, IEK-8: Troposphere, Forschungszentrum Julich GmbH, Julich 52428, Germany. Multiphase Chemistry Department, Max Planck Institute for Chemistry, Mainz 55128, Germany. School of Atmospheric Sciences, Sun Yat-sen University, Guangzhou 510275, China" |
| ISSN/ISBN: | 1520-5851 (Electronic) 0013-936X (Linking) |
| Abstract: | "Ozone (O(3)) pollution has a negative effect on the public health and crop yields. Accurate diagnosis of O(3) production sensitivity and targeted reduction of O(3) precursors [i.e., nitrogen oxides (NO(x)) or volatile organic compounds (VOCs)] are effective for mitigating O(3) pollution. This study assesses the indicative roles of the surface formaldehyde-to-NO(2) ratio (FNR) and glyoxal-to-NO(2) ratio (GNR) on surface O(3)-NO(x)-VOC sensitivity based on a meta-analysis consisting of multiple field observations and model simulations. Thresholds of the FNR and GNR are determined using the relationship between the relative change of the O(3) production rate and the two indicators, which are 0.55 +/- 0.16 and 1.0 +/- 0.3 for the FNR and 0.009 +/- 0.003 and 0.024 +/- 0.007 for the GNR. The sensitivity analysis indicated that the surface FNR is likely to be affected by formaldehyde primary sources under certain conditions, whereas the GNR might not be. As glyoxal measurements are becoming increasingly available, using the FNR and GNR together as O(3) sensitivity indicators has broad potential applications" |
| Keywords: | O3 sensitivity formaldehyde-to-NO2 ratio (FNR) glyoxal-to-NO2 ratio (GNR); |
| Notes: | "PublisherLiu, Jingwei Li, Xin Tan, Zhaofeng Wang, Wenjie Yang, Yiming Zhu, Yuan Yang, Suding Song, Mengdi Chen, Shiyi Wang, Haichao Lu, Keding Zeng, Limin Zhang, Yuanhang eng 2021/07/29 Environ Sci Technol. 2021 Jul 28. doi: 10.1021/acs.est.0c07506" |
