Vehicle exhaust: An overstated cause of haze in China

被引：38

作者：

Zhao, Yi-Bo ^{[1
]}

Gao, Pan-Pan ^{[1
]}

Yang, Wan-Dong ^{[1
]}

Ni, Hong-Gang ^{[1
]}

机构：

[1] Peking Univ, Shenzhen Grad Sch, Shenzhen Key Lab Circular Econ, Shenzhen 518055, Peoples R China

来源：

SCIENCE OF THE TOTAL ENVIRONMENT | 2018年 / 612卷

基金：

中国国家自然科学基金;

关键词：

Haze; China; Vehicle exhaust; POLLUTION; MECHANISM; GUANGZHOU;

D O I：

10.1016/j.scitotenv.2017.08.255

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Overall, total exhaust emissions of NOX, VOC and particulate matter (PM) declined, though vehicles in use continued to increase in China. This suggested that contribution of motor vehicle exhaust to haze in China may be exaggerated. A higher frequency of haze episodes in China with lower total emissions fraction from vehicle exhaust compared with those in the USA confirmed that there exists no strict causality between vehicle and haze. No significant correlation (p < 0.05) between haze days and the contribution of vehicles to airborne PM2.5 (particulates that are <2.5 mu m in aerodynamic diameter) or car ownerships. All results revealed again that vehicle exhaust is an overstated cause for haze formation in China. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：490 / 491

页数：2

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