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	Estimation of Citywide Air Pollution in Beijing
	Zhao Y.; Zhao Y.
	2013
关键词	particulate matter source apportionment ambient air pm2.5 pm10 particles quality china atmosphere illness
英文摘要	There has been discrepancies between the daily air quality reports of the Beijing municipal government, observations recorded at the U. S. Embassy in Beijing, and Beijing residents' perceptions of air quality. This study estimates Beijing's daily area PM2.5 mass concentration by means of a novel technique SPA (Single Point Areal Estimation) that uses data from the single PM2.5 observation station of the U. S Embassy and the 18 PM10 observation stations of the Beijing Municipal Environmental Protection Bureau. The proposed technique accounts for empirical relationships between different types of observations, and generates best linear unbiased pollution estimates (in a statistical sense). The technique extends the daily PM2.5 mass concentrations obtained at a single station (U. S. Embassy) to a citywide scale using physical relations between pollutant concentrations at the embassy PM2.5 monitoring station and at the 18 official PM10 stations that are evenly distributed across the city. Insight about the technique's spatial estimation accuracy (uncertainty) is gained by means of theoretical considerations and numerical validations involving real data. The technique was used to study citywide PM2.5 pollution during the 423-day period of interest (May 10, 2010 to December 6, 2011). Finally, a freely downloadable software library is provided that performs all relevant calculations of pollution estimation.
出处	Plos One
卷	8
期	1
收录类别	SCI
语种	英语
ISSN号	1932-6203
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/30211]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Zhao Y.,Zhao Y.. Estimation of Citywide Air Pollution in Beijing. 2013.

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