Numerical simulation of extreme air pollution by fine particulate matter in china in winter 2013

Hikari Shimadera*, Hiroshi Hayami, Toshimasa Ohara, Yu Morino, Akinori Takami, Satoshi Irei

*この研究の対応する著者

研究成果: Article査読

17 被引用数 (Scopus)

抄録

In winter 2013, extreme air pollution by fine particulate matter (PM2.5) in China attracted much public attention. In order to simulate the PM2.5 pollution, the Community Multiscale Air Quality model driven by the Weather Research and Forecasting model was applied to East Asia in a period from 1 January 2013 to 5 February 2013. The model generally reproduced PM2.5 concentration in China with emission data in the year 2006. Therefore, the extreme PM2.5 pollution seems to be mainly attributed to meteorological (weak wind and stable) conditions rather than emission increases in the past several years. The model well simulated temporal and spatial variations in PM2.5 concentrations in Japan as well as China, indicating that the model well captured characteristics of the PM2.5 pollutions in both areas on the windward and leeward sides in East Asia in the study period. In addition, contribution rates of four anthropogenic emission sectors (power generation, industrial, residential and transportation) in China to PM2.5 concentration were estimated by conducting zero-out emission sensitivity runs. Among the four sectors, the residential sector had the highest contribution to PM2.5 concentration. Therefore, the extreme PM2.5 pollution may be also attributed to large emissions from combustion for heating in cold regions in China.

本文言語English
ページ(範囲)25-34
ページ数10
ジャーナルAsian Journal of Atmospheric Environment
8
1
DOI
出版ステータスPublished - 2014
外部発表はい

ASJC Scopus subject areas

  • 環境科学(全般)
  • 大気科学

フィンガープリント

「Numerical simulation of extreme air pollution by fine particulate matter in china in winter 2013」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル