Journal article
Spatial oscillation of the particle pollution in eastern China during winter: Implications for regional air quality and climate
Atmospheric environment (1994), Vol.144, pp.100-110
11/2016
DOI: 10.1016/j.atmosenv.2016.08.049
Abstract
We provided a large-scale observational insight into spatial variations of the particle pollution in eastern China during winter based on recently extended air quality monitoring networks. Severe particle pollution with PM2.5 >150 μg/m3 prevailed in most areas of eastern China during December 2015, when red alert of haze pollution was released in many places. It was found that two distinct pollution processes existed in eastern China during winter. In the fringe areas such as Beijing and Shanghai in eastern China, most of air pollution events were characterized by abrupt peak values and short duration. By comparison, particle pollution in the interior exhibited obvious accumulation and decline processes with much higher PM2.5 concentration. Regional observations in ground networks show notable spatial oscillation of particle pollutants in eastern China, which is the main driver of the abrupt particle pollution in fringe areas. Despite common alternation of northerly and southerly airflows within planetary boundary layer (PBL), particle pollution in central part of eastern China was under the influence of regional accumulated pollutants due to lack of persistent strong winds. In addition, spatial oscillation of particle pollutants weakened with low PBL (<400–600 m). Our results demonstrate that spatial variations of particle pollutants in the central part of northern China play a significant role in regulating air quality in eastern China.
•Two distinct pollution processes exist in fringe areas and the interior of eastern China during winter.•Spatial oscillation of particle pollutants is responsible for the abrupt air pollution events.•PM2.5 in the central part of northern China can accumulate to >100 μg/m3 within 1–2 days.
Details
- Title: Subtitle
- Spatial oscillation of the particle pollution in eastern China during winter: Implications for regional air quality and climate
- Creators
- Minghui Tao - State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100101, ChinaLiangfu Chen - State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100101, ChinaRong Li - State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, ChinaLili Wang - State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, ChinaJun Wang - Department of Earth & Atmospheric Sciences, University of Nebraska, Lincoln, NE, 68588, USAZifeng Wang - State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100101, ChinaGuiqian Tang - State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, ChinaJinhua Tao - State Key Laboratory of Remote Sensing Science, Institute of Remote Sensing and Digital Earth, Chinese Academy of Sciences, Beijing, 100101, China
- Resource Type
- Journal article
- Publication Details
- Atmospheric environment (1994), Vol.144, pp.100-110
- DOI
- 10.1016/j.atmosenv.2016.08.049
- ISSN
- 1352-2310
- eISSN
- 1873-2844
- Publisher
- Elsevier Ltd
- Grant note
- DOI: 10.13039/100000001, name: National Science Foundation, award: 41401482; DOI: 10.13039/501100002367, name: CAS, award: XDB05020100
- Language
- English
- Date published
- 11/2016
- Academic Unit
- Electrical and Computer Engineering; Civil and Environmental Engineering; Physics and Astronomy; Chemical and Biochemical Engineering
- Record Identifier
- 9984104810702771
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