Full-volatility emission framework corrects missing and underestimated secondary organic aerosol sources

被引：78

作者：

Chang, Xing ^{[1
,2
]}

Zhao, Bin ^{[1
,2
]}

Zheng, Haotian ^{[1
,2
]}

Wang, Shuxia ^{[1
,2
]}

Cai, Siyi ^{[1
,2
]}

Guo, Fengqiao ^{[3
]}

Gui, Ping ^{[3
]}

Huang, Guanghan ^{[1
,2
]}

Wu, Di ^{[1
,2
]}

Han, Licong ^{[1
,2
]}

Xing, Jia ^{[1
,2
]}

Man, Hanyang ^{[4
]}

Hu, Ruolan ^{[1
,2
]}

Liang, Chengrui ^{[1
,2
]}

Xu, Qingcheng ^{[1
,2
]}

Qiu, Xionghui ^{[5
]}

Ding, Dian ^{[1
,2
]}

Liu, Kaiyun ^{[1
,2
]}

Han, Rui ^{[1
,6
]}

Robinson, Allen L. ^{[7
]}

Donahue, Neil M. ^{[7
,8
,9
,10
]}

机构：

[1] Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China

[2] State Environm Protect Key Lab Sources & Control, Beijing 100084, Peoples R China

[3] China Acad Urban Planning & Design, Beijing 100044, Peoples R China

[4] Fujian Normal Univ, Coll Environm Sci & Engn, Fuzhou 350007, Peoples R China

[5] North China Elect Power Univ, Coll Environm Sci & Engn, Beijing 102206, Peoples R China

[6] China Meteorol Adm, Natl Meteorol Informat Ctr, Beijing 100081, Peoples R China

[7] Carnegie Mellon Univ, Ctr Atmospher Particle Studies, Pittsburgh, PA 15213 USA

[8] Carnegie Mellon Univ, Dept Chem Engn, Pittsburgh, PA 15213 USA

[9] Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA

[10] Carnegie Mellon Univ, Dept Engn & Publ Policy, Pittsburgh, PA 15213 USA

来源：

ONE EARTH | 2022年 / 5卷 / 04期

基金：

中国国家自然科学基金;

关键词：

AIR-POLLUTANT EMISSIONS; INTERMEDIATE-VOLATILITY; REGIONAL TRANSPORT; COMPOUND EMISSIONS; COMBUSTION SOURCES; COAL COMBUSTION; RIVER DELTA; PART; SEMIVOLATILE; PM2.5;

D O I：

10.1016/j.oneear.2022.03.015

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Organic aerosol (OA) is the largest and most complicated component of aerosols that greatly affect human health and global climate. However, widely used models cannot reproduce primary and secondary OA concentrations, and thus the source contributions of OA remain elusive. This is largely caused by the oversimplification of traditional organic emission inventories. Here, we develop an emission framework that achieves a full volatility coverage in both the gas and particle phases with a high chemical and volatility resolution. The new inventory fills a gap of 3,382 kt/y semi-and intermediate-volatility organic emissions and 59% ambient secondary OA (SOA) concentrations in China 2017, resulting in a significantly improved model-measurement agreement. Volatile chemical products, domestic combustion, and biomass open burning, with their SOA contributions increased by a factor of two to nine, turn out to be three leading sources of SOA. Future control policies must focus more on these previously underestimated sources.

引用

页码：403 / +

页数：11

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