The impact of meteorological factors on fine particulate pollution in Northeast China

Meng，Can1,2; Cheng，Tianhai1; Bao，Fangwen3; Gu，Xingfa1; Wang，Jian4; Zuo，Xin1,2; Shi，Shuaiyi1

2020-07-01

10.4209/aaqr.2019.10.0534

Aerosol and Air Quality Research   影响因子和分区

1680-8584

2071-1409

Due to biomass burning and coal combustion, heavy fine particulate matter (PM) pollution frequently occurs in Northeast China, threatening the health of more than 117 million inhabitants. Although meteorological conditions have always been considered key factors in the accumulation and dilution of PM pollution, their exact contribution to particulate pollution in Northeast China is still highly uncertain. Applying multiple regression analysis to observational data, we identify the wind speed, temperature inversion, and height of the planetary boundary layer as the dominant meteorological factors affecting PM pollution (PM > 75 µg m) in the major cities of Northeast China, with the wind speed and the planetary boundary layer playing the primary roles in Harbin and Shenyang, and Changchun, respectively. Heavy pollution (PM > 150 µg m) in this region typically occurs when the wind speed is less than 20 knots, the planetary boundary layer is below 500 m, and the temperature inversion is greater than 6°C. These results suggest that reducing the PM pollution requires us to focus not only on anthropogenic emissions but also on special meteorological conditions that can affect the air pollution mechanisms in Northeast China.

Fine particulate (PM2.5) pollution Multiple regression method Planetary boundary layer height Temperature inversion Wind speed

SCI ; EI ; CPCI-S

英语

其他

National Key Research and Development Program of China[2017YFC0212302]

Environmental Sciences & Ecology

Environmental Sciences

WOS:000548340000010

TAIWAN ASSOC AEROSOL RES-TAAR

20202708904495

Boundary layer flow ; Regression analysis ; Boundary layers ; Coal combustion ; Particles (particulate matter) ; Atmospheric thermodynamics ; Air pollution ; Wind speed

Atmospheric Properties:443.1 ; Air Pollution:451 ; Fuel Combustion and Flame Research:521 ; Solid Fuels:524 ; Wind Power (Before 1993, use code 611 ):615.8 ; Fluid Flow, General:631.1 ; Thermodynamics:641.1 ; Mathematical Statistics:922.2 ; Materials Science:951

2-s2.0-85087327015

Scopus

1.State Key Laboratory of Remote Sensing Science,Aerospace Information Research Institute,Chinese Academy of Sciences,Beijing,100094,China
2.University of Chinese Academy of Sciences,Beijing,100049,China
3.Department of Ocean Sciences and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
4.Department of Geography,The Ohio State University,Columbus,43210,United States

Meng，Can,Cheng，Tianhai,Bao，Fangwen,et al. The impact of meteorological factors on fine particulate pollution in Northeast China[J]. Aerosol and Air Quality Research,2020,20(7):1618-1628.

Meng，Can.,Cheng，Tianhai.,Bao，Fangwen.,Gu，Xingfa.,Wang，Jian.,...&Shi，Shuaiyi.(2020).The impact of meteorological factors on fine particulate pollution in Northeast China.Aerosol and Air Quality Research,20(7),1618-1628.

Meng，Can,et al."The impact of meteorological factors on fine particulate pollution in Northeast China".Aerosol and Air Quality Research 20.7(2020):1618-1628.