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Open AccessArticle

The Aerosol-Radiation Interaction Effects of Different Particulate Matter Components during Heavy Pollution Periods in China

1
Institute of Urban Meteorology, China Meteorological Administration, Beijing 100089, China
2
School of Energy and Environmental Engineering, University of Science and Technology Beijing, Beijing 100083, China
3
National Meteorological Center, Beijing 100081, China
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Key Laboratory of Atmospheric Chemistry of China Meteorological Administration, Chinese Academy of Meteorological Sciences, Beijing 100081, China
5
State Grid Jibei Electric Power Research Institute, Beijing 100045, China
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State Grid Jibei Electric Power Company Limited, Beijing 100045, China
*
Author to whom correspondence should be addressed.
Atmosphere 2020, 11(3), 254; https://doi.org/10.3390/atmos11030254
Received: 14 January 2020 / Revised: 11 February 2020 / Accepted: 1 March 2020 / Published: 3 March 2020
(This article belongs to the Section Aerosols)
The Beijing-Tianjin-Hebei (BTH) region experienced heavy air pollution in December 2015, which provided a good opportunity to explore the aerosol-radiation interaction (ARI) effects of different particulate matter (PM) components (sulfate, nitrate, and black carbon (BC)). In this study, five tests were conducted by the Weather Research and Forecasting—Chemistry (WRF-Chem) model. The tests included scenario 1 simulation with ARI turned on, scenario 2 simulation with ARI turned off, scenario3 simulation without NOx/NO3 emissions and with ARI turned on, scenario 4 simulation without SO2/SO42 emissions and with ARI turned on, and scenario 5 simulation without BC emissions and with ARI turned on. The ARI decreased the downward shortwave radiation (SWDOWN) and the temperature at 2 m (T2), reduced the planetary boundary layer (PBL) height (PBLH), and increased the relative humidity (RH) at 2 m in the region. These factors also contribute to pollution accumulation. The results revealed that BC aerosols have a stronger effect on the reduction in SWDOWN than sulfate (SO42) and nitrate (NO3). BC aerosols produce both cooling and heating effects, while SO42 aerosols produce only cooling effects. The PBL decreased and RH2 increased due to the aerosol feedback effect of sulfate, nitrate, and BC. The ARI effect on meteorological factors during the nonheavy pollution period was much smaller than that during the pollution period. View Full-Text
Keywords: aerosol-radiation interaction; black carbon; sulfate aerosols; nitrate aerosols; meteorological factors aerosol-radiation interaction; black carbon; sulfate aerosols; nitrate aerosols; meteorological factors
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Wen, W.; Ma, X.; Guo, C.; Zhao, X.; Xu, J.; Liu, L.; Wu, H.; Zhou, W.; Zhang, Z. The Aerosol-Radiation Interaction Effects of Different Particulate Matter Components during Heavy Pollution Periods in China. Atmosphere 2020, 11, 254.

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