Attributions of meteorological and emission factors to the 2015 winter severe haze pollution episodes in China's Jing-Jin-Ji area

被引：128

作者：

Liu, Tingting ^{[1
,2
,3
]}

Gong, Sunling ^{[2
,3
,5
]}

He, Jianjun ^{[2
,3
]}

Yu, Meng ^{[4
]}

Wang, Qifeng ^{[5
]}

Li, Huairui ^{[5
]}

Liu, Wei ^{[4
]}

Zhang, Jie ^{[4
]}

Li, Lei ^{[4
]}

Wang, Xuguan ^{[4
]}

Li, Shuli ^{[4
]}

Lu, Yanli ^{[4
]}

Du, Haitao ^{[6
]}

Wang, Yaqiang ^{[2
,3
]}

Zhou, Chunhong ^{[2
,3
]}

Liu, Hongli ^{[2
,3
]}

Zhao, Qichao ^{[5
]}

机构：

[1] Hangzhou Dianzi Univ, Sch Mech Engn, Hangzhou, Zhejiang, Peoples R China

[2] Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China

[3] Chinese Acad Meteorol Sci, Key Lab Atmospher Chem CMA, Beijing, Peoples R China

[4] Langfang Bur Environm Protect, Langfang, Hebei, Peoples R China

[5] Langfang Acad Eco Ind Wisdom Environm, Langfang, Hebei, Peoples R China

[6] Langfang Bur Meteorol, Langfang, Hebei, Peoples R China

来源：

ATMOSPHERIC CHEMISTRY AND PHYSICS | 2017年 / 17卷 / 04期

基金：

中国国家自然科学基金;

关键词：

PARTICULATE MATTER POLLUTION; VEHICLE EMISSION; AIR-POLLUTION; SIMULATION; SULFATE; CLIMATE; SUMMER; HEALTH; IMPACT; HEBEI;

D O I：

10.5194/acp-17-2971-2017

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

In the 2015 winter month of December, northern China witnessed the most severe air pollution phenomena since the 2013 winter haze events occurred. This triggered the first-ever red alert in the air pollution control history of Beijing, with an instantaneous fine particulate matter (PM2:5)concentration over 1 mg m(-3) . Air quality observations reveal large temporal-spatial variations in PM2 : 5 concentrations over the Beijing-Tianjin-Hebei (Jing-Jin-Ji) area between 2014 and 2015. Compared to 2014, the PM2:5 concentrations over the area decreased significantly in all months except November and December of 2015, with an increase of 36% in December. Analysis shows that the PM2 : 5 concentrations are significantly correlated with the local meteorological parameters in the Jing-Jin-Ji area such as the stable conditions, relative humidity (RH), and wind field. A comparison of two month simulations (December 2014 and 2015) with the same emission data was performed to explore and quantify the meteorological impacts on the PM2:5 over the Jing-Jin-Ji area. Observation and modeling results show that the worsening meteorological conditions are the main reasons behind this unusual increase of air pollutant concentrations and that the emission control measures taken during this period of time have contributed to mitigate the air pollution (similar to 9 %) in the region. This work provides a scientific insight into the emission control measures vs. the meteorology impacts for the period.

引用

页码：2971 / 2980

页数：10

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