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DOI	10.1016/j.atmosenv.2021.118455
	PM2.5 sources affecting particle radioactivity in Boston, Massachusetts
	Yu S.; Kang C.-M.; Liu M.; Koutrakis P.
发表日期	2021
ISSN	1352-2310
卷号	259
英文摘要	Recent studies have found associations between particle radioactivity and various human health outcomes. The aim of this study is to identify sources contributing to PM2.5 (particulate matter with the aerodynamic diameter less than 2.5 μm) gross α- and β-activity levels. We used positive matrix factorization (PMF) to identify and apportion sources of PM2.5 in Boston during the period of one year in Boston. Toward this end, we used daily concentrations of elements, black carbon (BC), and PM2.5 mass. We identified six source types: regional pollution, motor vehicles, oil combustion, crustal, biomass burning, and sea salt. Subsequently, we performed multiple linear regression (MLR) analysis to examine the association between individual source contributions and PM2.5 gross α- and β-activities. Our analysis suggested that regional pollution had the highest impact on both PM2.5 α- and β-activities, followed by motor vehicles. Biomass burning and sea salt were not significantly associated with PM2.5 β-activity. © 2021
关键词	MLR Particle radioactivity PM2.5 Source apportionment
语种	英语
scopus关键词	Factorization; Pollution; Radiation; Radioactivity; Biomass-burning; Human health; Massachusetts; Motor vehicle; Multiple linear regressions; Particle radioactivity; PM$-2.5$; Regional pollution; Sea salts; Source apportionment; Linear regression; black carbon; sodium chloride; biomass allocation; biomass burning; black carbon; concentration (composition); particulate matter; pollutant source; public health; radioactive waste; radioactivity; sea salt; air pollution; Article; biomass; combustion; fire; human; Massachusetts; motor vehicle; multiple linear regression analysis; particulate matter 2.5; radioactivity; sea; Boston; Massachusetts; United States
来源期刊	ATMOSPHERIC ENVIRONMENT
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/248371
作者单位	Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, 02115, United States; Key Laboratory for Earth Surface and Processes, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China
推荐引用方式 GB/T 7714	Yu S.,Kang C.-M.,Liu M.,et al. PM2.5 sources affecting particle radioactivity in Boston, Massachusetts[J],2021,259.
APA	Yu S.,Kang C.-M.,Liu M.,&Koutrakis P..(2021).PM2.5 sources affecting particle radioactivity in Boston, Massachusetts.ATMOSPHERIC ENVIRONMENT,259.
MLA	Yu S.,et al."PM2.5 sources affecting particle radioactivity in Boston, Massachusetts".ATMOSPHERIC ENVIRONMENT 259(2021).