DOI: 10.1016/j.atmosenv.2013.11.031
Scopus记录号: 2-s2.0-84889674375
论文题名: Constrained source apportionment of coarse particulate matter and selected trace elements in three cities from the multi-ethnic study of atherosclerosis
作者: Sturtz T ; M ; , Adar S ; D ; , Gould T ; , Larson T ; V
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2014
卷: 84 起始页码: 65
结束页码: 77
语种: 英语
英文关键词: Agriculture
; Air pollution
; Brake wear
; Coarse particulate matter
; Positive matrix factorization
; Soil
; Source apportionment
; Tire wear
; Trace elements
Scopus关键词: Agriculture
; Air pollution
; Matrix algebra
; Soils
; Tires
; Trace elements
; Coarse particulate matter
; Constrained source
; Positive Matrix Factorization
; Resuspended soil
; Source apportionment
; Sources of variability
; Tire wear
; Trace element concentrations
; Brakes
; barium ion
; chloride
; copper
; cuprous ion
; iron
; nickel
; phosphorus
; silicon
; sodium ion
; trace element
; zinc
; zirconium
; atmospheric pollution
; cardiovascular disease
; concentration (composition)
; ethnicity
; particulate matter
; pollutant source
; public health
; resuspension
; tire
; trace element
; urban atmosphere
; wear
; article
; atherosclerosis
; city
; human
; measurement
; particle size
; particulate matter
; prediction
; priority journal
; season
; soil analysis
; soil fertilization
; urban area
; Chicago
; Illinois
; Minnesota
; Saint Paul
; United States
Scopus学科分类: Environmental Science: Water Science and Technology
; Earth and Planetary Sciences: Earth-Surface Processes
; Environmental Science: Environmental Chemistry
英文摘要: PM10-2.5 mass and trace element concentrations were measured in Winston-Salem, Chicago, and St. Paul at up to 60 sites per city during two different seasons in 2010. Positive Matrix Factorization (PMF) was used to explore the underlying sources of variability. Information on previously reported PM10-2.5 tire and brake wear profiles was used to constrain these features in PMF by prior specification of selected species ratios. We also modified PMF to allow for combining the measurements from all three cities into a single model while preserving city-specific soil features. Relatively minor differences were observed between model predictions with and without the prior ratio constraints, increasing confidence in our ability to identify separate brake wear and tire wear features. Brake wear, tire wear, fertilized soil, and resuspended soil were found to be important sources of copper, zinc, phosphorus, and silicon, respectively, across all three urban areas. © 2013 . Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/81185
Appears in Collections: 气候变化事实与影响
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作者单位: Department of Civil and Environmental Engineering, University of Washington, Box 352700, Seattle, WA 98195-2700, United States; Department of Epidemiology, School of Public Health University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029, United States; Department of Environmental and Occupational Health Sciences, University of Washington, Box 357234, Seattle, WA 98195-7234, United States
Recommended Citation:
Sturtz T,M,, Adar S,et al. Constrained source apportionment of coarse particulate matter and selected trace elements in three cities from the multi-ethnic study of atherosclerosis[J]. Atmospheric Environment,2014-01-01,84