NDLI: Estimating the effects of meteorology on PM$_{2.5}$ reduction during the 2008 Summer Olympic Games in Beijing, China

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Frontiers of Environmental Science & Engineering in China : Volume 5, Issue 2, June 2011

Frontiers of Environmental Science & Engineering in China : Volume 5, Issue 1, March 2011

Frontiers of Environmental Science & Engineering in China : Volume 4

Frontiers of Environmental Science & Engineering in China : Volume 3

Frontiers of Environmental Science & Engineering in China : Volume 2

Frontiers of Environmental Science & Engineering in China : Volume 1

Estimating the effects of meteorology on PM$_{2.5}$ reduction during the 2008 Summer Olympic Games in Beijing, China

Content Provider	Springer Nature Link
Author	Yang, Liu Wu, Ye Davis, Jerry M. Hao, Jiming
Copyright Year	2011
Abstract	Particulate pollution was a critical challenge to the promise of good air quality during the 2008 Beijing Olympic Games, which took place from August 8th to 24th. To ensure good air quality for the Games, several temporary emission control measures were implemented in Beijing and surrounding areas. Ambient particulate matter concentration decreased significantly during the Olympic period; however, it is difficult to distinguish the effectiveness of those control measures since meteorology also affects ambient PM$_{2.5}$ concentration. In this work, a multiple linear regression model based on continuous field monitoring at a roadside site was conducted to evaluate the effects of meteorology and emission control measures on the reduction of PM$_{2.5}$ during the 2008 Olympic Games. The hourly data set was divided into two time periods, the no control period, June 22nd to July 4th, and the control period, July 28th to August 21st. The response variable was PM$_{2.5}$ and the meteorology covariates used in the model were hourly temperature, dew point temperature, wind speed and precipitation. Wind direction was not a significant predictor of PM$_{2.5}$ levels in either the control or the no control period. Using the meteorologically-based regression coefficients from the two time periods, meteorology was found to contribute to at least a 16% reduction in PM$_{2.5}$ levels in the roadside microenvironment; while the pollution control measures contributed to at least a 43% reduction in PM$_{2.5}$ levels.
Starting Page	331
Ending Page	341
Page Count	11
File Format	PDF
ISSN	16737415
Journal	Frontiers of Environmental Science & Engineering in China
Volume Number	5
Issue Number	3
e-ISSN	16737520
Language	English
Publisher	SP Higher Education Press
Publisher Date	2011-07-15
Publisher Institution	Chinese Universities
Publisher Place	Heidelberg
Access Restriction	Subscribed
Subject Keyword	meteorology emission control measures Beijing Olympic Games PM$_{2.5}$ linear statistical models Environment
Content Type	Text
Resource Type	Article
Subject	Environmental Science

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