Enhanced haze pollution by black carbon in megacities in China
South China Institute of Collaborative Innovation · Nanjing University · +5 more institutions
Abstract
Abstract Aerosol‐planetary boundary layer (PBL) interactions have been found to enhance air pollution in megacities in China. We show that black carbon (BC) aerosols play the key role in modifying the PBL meteorology and hence enhancing the haze pollution. With model simulations and data analysis from various field observations in December 2013, we demonstrate that BC induces heating in the PBL, particularly in the upper PBL, and the resulting decreased surface heat flux substantially depresses the development of PBL and consequently enhances the occurrences of extreme haze pollution episodes. We define this process as the “dome effect” of BC and suggest an urgent need for reducing BC emissions as an efficient…
Citation impact
- FWCI
- 44.72
- Percentile
- 100%
- References
- 35
Authors
23- ADAijun DingCorresponding
South China Institute of Collaborative Innovation, Nanjing University
- XHXin Huang
South China Institute of Collaborative Innovation, Nanjing University
- WNW. Nie
South China Institute of Collaborative Innovation, Nanjing University
- JSJianning Sun
South China Institute of Collaborative Innovation, Nanjing University
- VKVeli‐Matti Kerminen
University of Helsinki
Topics & keywords
- Haze
- Megacity
- Pollution
- Environmental science
- Aerosol
- Carbon black
- Atmospheric sciences
- Air pollution