Switching to electric vehicles can lead to significant reductions of PM2.5 and NO2 across China

被引:56
作者
Wang, Liqiang [1 ,8 ]
Chen, Xue [1 ]
Zhang, Yibo [1 ]
Li, Mengying [1 ]
Li, Pengfei [3 ]
Jiang, Linhui [1 ]
Xia, Yan [1 ]
Li, Zhen [1 ]
Li, Jiali [1 ]
Wang, Lu [1 ]
Hou, Tangyan [1 ]
Liu, Weiping [1 ]
Rosenfeld, Daniel [1 ,4 ]
Zhu, Tong [5 ]
Zhang, Yuanhang [5 ]
Chen, Jianmin [6 ]
Wang, Shuxiao [7 ]
Huang, Yuanlong [2 ]
Seinfeld, John H. [2 ]
Yu, Shaocai [1 ,2 ]
机构
[1] Zhejiang Univ, Coll Environm & Resource Sci, Res Ctr Air Pollut & Hlth, Key Lab Environm Remediat & Ecol Hlth,Minist Educ, Hangzhou 310058, Zhejiang, Peoples R China
[2] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA
[3] Hebei Agr Univ, Coll Sci & Technol, Baoding 071000, Hebei, Peoples R China
[4] Hebrew Univ Jerusalem, Inst Earth Sci, Jerusalem, Israel
[5] Peking Univ, Coll Environm Sci & Engn, Beijing 100871, Peoples R China
[6] Fudan Univ, Dept Environm Sci & Engn, Shanghai Key Lab Atmospher Particle Pollut & Prev, Shanghai 200433, Peoples R China
[7] Tsinghua Univ, Sch Environm, State Key Joint Lab Environm Simulat & Pollut Con, Beijing 100084, Peoples R China
[8] Zhejiang Shuren Univ, Key Lab Pollut Exposure & Hlth Intervent Technol, IRA, Hangzhou 310015, Zhejiang, Peoples R China
来源
ONE EARTH | 2021年 / 4卷 / 07期
基金
中国国家自然科学基金;
关键词
DATA ASSIMILATION; MODEL DESCRIPTION; AIR-POLLUTION; PART I; EMISSIONS; TRANSPORT; AEROSOL; IMPLEMENTATION; CHALLENGES; SYSTEM;
D O I
10.1016/j.oneear.2021.06.008
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Transportation contributes to around one-fifth of global greenhouse gas emissions, while also causing severe air pollution. The conversion to electric vehicles (EVs) represents a major path to decarbonize the transport sector, with potentially significant co-benefits for human health. However, the scale of such co-benefits largely remains an empirical question and lacks observational evidence. The full lockdown in China during the coronavirus disease 2019 (COVID-19) pandemic provides an unprecedented real-world experiment to evaluate emission reduction potentials of a large-scale transition to EVs. Here, we utilize ground and satellite observations of air quality during the full lockdown to constrain predictions of a comprehensive chemical transport model and find that the substantial traffic reductions are near-linearly linked to reductions of PM2.5 (particles with an aerodynamic diameter <= 2.5 mm) and NO2. A further extrapolation of a full conversion to EVs shows a significant reduction of PM2.5 (30%-70%) and NO2 (30%-80%) in most of China. Our findings provide fact-based evidence of potential environmental benefits generated by fully switching to EVs.
引用
收藏
页码:1037 / 1048
页数:13
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