Orals

AS3.37

Fine-particle pollution associated with haze threatens the health of more than 1 billion people in China. Extremely high PM2.5 concentrations are frequently observed especially during the winter haze event in northern China. Even after accounting for aerosol-radiation-meteorology feedback and improving the emission inventory, state-of-the-art models still fail to capture the observed high PM2.5 concentrations, suggesting the missing of key chemistry for the secondary aerosol formation. To improve the prediction and control strategy of PM2.5, we are in urgent need of a better understanding of the chemistry of secondary aerosol formation. Thus we propose the session "Multiphase chemistry of secondary aerosol formation under severe haze" to promote the research and discussion on this topic which is highly relevant for both atmospheric chemists and the public.

The session is open for all submissions which addresses, but is not limited to, the following questions concerning secondary aerosol formation: What are the key oxidation pathways leading to aerosol formation under clean and polluted conditions? What is the role of multiphase chemistry versus gas phase chemistry? Are laboratory determined kinetic data of multiphase chemistry directly applicable for ambient conditions and if not, how to derive and determine the reaction kinetics relevant for ambient conditions? What is the aerosol particles’ and droplets’ pH and how does it influence the multiphase chemistry? What is the role of the RH, temperature, mixing state and aerosol phase state in multiphase chemistry and how does aerosol mixing state play a role? What's the contribution of aqueous secondary organic aerosol (SOA) formation under highly polluted conditions?

A special issue of the same topic has already been approved and launched in the EGU journal "Atmospheric Chemistry and Physics".

Share:
Convener: Hang Su | Co-conveners: Yafang Cheng, Jingkun Jiang, Jian Wang
Orals
| Mon, 08 Apr, 10:45–12:30, 14:00–15:45
 
Room 0.11
Posters
| Attendance Mon, 08 Apr, 16:15–18:00
 
Hall X5

Monday, 8 April 2019 | Room 0.11

Chairperson: Hang Su, Jingkun Jiang
10:45–11:00 |
EGU2019-3630
| solicited
Chak K. Chan, Masao Gen, Ruifeng Zhang, Dandan Huang, and Yongjie Li
11:00–11:15 |
EGU2019-7365
Guangjie Zheng, Hang Su, Ulrich Pöschl, and Yafang Cheng
11:15–11:30 |
EGU2019-3594
Guo Li, Yafang Cheng, Uwe Kuhn, Rongjuan Xu, Yudong Yang, Hannah Meusel, Zhibin Wang, Nan Ma, Yusheng Wu, Meng Li, Jonathan Williams, Thorsten Hoffmann, Markus Ammann, Ulrich Pöschl, Min Shao, and Hang Su
11:30–11:45 |
EGU2019-410
Shaojie Song, Meng Gao, Weiqi Xu, Yele Sun, Douglas R. Worsnop, John T. Jayne, Yuzhong Zhang, Lei Zhu, Yibing Lv, Ying Wang, Wei Peng, Xiaobin Xu, Nan Lin, Yuxuan Wang, Shuxiao Wang, J. William Munger, Daniel J. Jacob, and Michael B. McElroy and the SPAMS group (Mei Li, Zhen Zhou, Chunlei Cheng, Jinan University, Guangzhou, China)
11:45–12:00 |
EGU2019-13516
Zhouqing Xie, Pengzhen He, Hui Kang, and Xiawei Yu
12:15–12:30 |
EGU2019-8202
Jiarui Wu, Naifang Bei, Bo Hu, Suixin Liu, Xia Li, Lang Liu, Qiyuan Wang, Meng Zhou, Tian Feng, Li Xing, Zirui Liu, Yichen Wang, Junji Cao, Xuexi Tie, Jun Wang, Luisa T. Molina, and Guohui Li
Lunch break
Chairperson: Yafang Cheng, Jian Wang
14:00–14:15 |
EGU2019-14235
| solicited
Jacqueline Hamilton, Daniel Bryant, William Dixon, Kelly Pereira, Freya Squires, Rachel Dunmore, James Hopkins, James Lee, Andrew Rickard, Yele Sun, and Weiqi Xu
14:15–14:30 |
EGU2019-2143
Jihoon Seo, Yong Bin Lim, Daeok Youn, Jin Young Kim, and Hyoun Cher Jin
14:45–15:00 |
EGU2019-5703
Nan Ma, Juan Hong, Xihao Pan, Wenlin Dong, Shaowen Zhu, Jiangchuan Tao, Ye Kuang, Jeannine Ditas, Hang Su, and Yafang Cheng
15:00–15:15 |
EGU2019-16050
Haijie Tong, Alexander Filippi, Steven Lelieveld, Fobang Liu, Chenpei Li, Pascale S. J. Lakey, Yueshe Wang, William H. Brune, Manabu Shiraiwa, and Ulrich Pöschl
15:15–15:30 |
EGU2019-4722
Weigang Wang, Ting Lei, Andreas Zuend, Hang Su, Yafang Cheng, Yajun Shi, and Maofa Ge