TitleAtmospheric particulate matter pollution during the 2008 Beijing Olympics.
Publication TypeJournal Article
Year of Publication2009
AuthorsWang, W, Primbs, T, Tao, S, Simonich, SLMassey
JournalEnviron Sci Technol
Date Published2009 Jul 15
KeywordsAir Pollutants, Atmosphere, China, Cities, Environmental Monitoring, Meteorology, Particle Size, Particulate Matter, Seasons, Sports, Wind

Size fractionated particulate matter (PM) samples (including PM2.5 and PM10) were collected at Peking University in Northwestern Beijing, China for a 2 week period prior to the Olympics, during the 2 week period of the Olympics, and for a 4 week period following the 2008 Olympics, during both source control and nonsource control periods. PM10 concentrations in this study were high correlated with, but a factor of 1.3 times higher than, the Beijing Environmental Protection Bureau's PM10 concentrations at near-by sites because of differences in the measurement methods used. The mean PM2.5 and PM10 concentrations were statistically different, and lower by 31 and 35%, during the Olympic period compared to the non-Olympic period. However, the PM concentrations were not statistically different between the source control and nonsource control periods. While meteorological parameters (air masses from the south and precipitation) accounted for 40% of the total variation in PM10 concentration, source control accounted for 16%, suggesting that meteorology accounted for more of the variation in PM concentration than source control measures. The PM10 concentrations in Beijing during the Olympic period were 2.9, 3.5, and 1.9 times higher than those in Atlanta, Sydney, and Athens. In addition, the PM2.5 and PM10 concentrations during the Olympic period exceeded the WHO 24-h guideline 100% and 81% of the time, respectively. Finally, the PM10 concentrations in October, November, and December 2008 were reduced by 9-27% compared to the same months in 2007, suggesting that the Olympic source control efforts (and possibly a down turn in the economy) have resulted in lower PM10 concentrations in Beijing.

Alternate JournalEnviron. Sci. Technol.
PubMed ID19708359
PubMed Central IDPMC2739612
Grant ListP30 ES000210 / ES / NIEHS NIH HHS / United States
P30 ES000210-38 / ES / NIEHS NIH HHS / United States
P30ES00210 / ES / NIEHS NIH HHS / United States
P42 ES016465-01A16115 / ES / NIEHS NIH HHS / United States