OPEN ACCESS

Articles online

Analysis of Long-Range Transport Effects on PM2.5 during a Short Severe Haze in Beijing, China

Category: Air Pollution Modeling

Volume: 17 | Issue: 6 | Pages: 1610-1622
DOI: 10.4209/aaqr.2016.06.0220
PDF | RIS | BibTeX

Weilin Yang, Guochen Wang, Chunjuan Bi

  • School of Geographical Sciences, Key Laboratory of Geographical Information Science of Ministry of Education, East China Normal University, Shanghai 200241, China

Highlights

The concentration of PM2.5 decreased from south to north of Beijing.
Calm and steady meteorological condition was the major influence of PM2.5 concentration.
The air flows at 500 m had the greatest contribution of the air pollution.
The potential sources were the built-up areas in Jing-Jin-Ji zone.


Abstract

Comprehensively using Inverse Distance Weighted (IDW) analysis, Hybrid Single-Particle Lagrangian Integrated Trajectory (HYSPLIT) model, three-dimensional (3D) cluster analysis, Weight Potential Source Concentration Function (WPSCF) analysis and other statistic methods, we mainly studied about the spatio-temporal variation, long-range transport and potential source regions of PM2.5 in Beijing during a short severe haze from Dec05 to Dec11, 2015. The results showed that the concentration of PM2.5 decreased from south to north of Beijing. PM2.5 accumulation in the short-severe haze had high correlation with calm and steady meteorological condition (high relative humidity (RH), low wind speed (WS), low boundary-layer temperature (BLT) and surface air pressure (SAP)). In addition, air-flow in different heights (500 m, 1500 m and 3000 m) had different effects on the haze episode and the air flows at 500 m had the greatest contribution of the air pollution. The potential sources were mainly from the desert in northwest of Beijing and the built-up areas in Jing-Jin-Ji zone. Higher WPSCF values (> 0.7) were mainly distributed in Hebei, west Shandong province (around 0.5) and south Tianjin (around 0.5).

Keywords

PM2.5 Spatio-temporal distribution Meteorological parameters HYSPLIT Potential sources


Related Article

Hourly Variations and Potential Sources of Airborne Trace Elements in PM10 in Four Representative Regions of Southeastern China

Huajun Ye , Kai Yang, Xuejiao Jiang, Lili Niu, Daozhu Hua, Dan Li, Shuihe Shi
Volume: 14 | Issue: 7 | Pages: 1986-1997
DOI: 10.4209/aaqr.2014.07.0125
PDF

Improvement of the Real-time PM2.5 Forecast over the Beijing-Tianjin-Hebei Region using an Optimal Interpolation Data Assimilation Method

Haitao Zheng, Jianguo Liu , Xiao Tang, Zifa Wang , Huangjian Wu, Pingzhong Yan, Wei Wang
Accepted Manuscripts
DOI: 10.4209/aaqr.2017.11.0522
PDF

Determining VOCs Reactivity for Ozone Forming Potential in the Megacity of São Paulo

Débora Souza Alvim , Luciana Vanni Gatti, Sergio Machado Corrêa, Júlio Barboza Chiquetto, Guaciara Macedo Santos, Carlos de Souza Rossatti, Angélica Pretto, José Roberto Rozante, Silvio Nilo Figueroa, Jayant Pendharkar, Paulo Nobre
Accepted Manuscripts
DOI: 10.4209/aaqr.2017.10.0361
PDF

Differentiating between Local and Remote Pollution over Taiwan

Pavel Kishcha , Sheng-Hsiang Wang, Neng-Huei Lin, Arlindo da Silva, Tang-Huang Lin, Po-Hsiung Lin, Gin-Rong Liu, Boris Starobinets, Pinhas Alpert
Accepted Manuscripts
DOI: 10.4209/aaqr.2017.10.0378
PDF
;