DOI: 10.1016/j.atmosenv.2016.10.044
Scopus记录号: 2-s2.0-84995763285
论文题名: Source apportionment of PM2.5 chemically speciated mass and particle number concentrations in New York City
作者: Masiol M ; , Hopke P ; K ; , Felton H ; D ; , Frank B ; P ; , Rattigan O ; V ; , Wurth M ; J ; , LaDuke G ; H
刊名: Atmospheric Environment
ISSN: 0168-2563
EISSN: 1573-515X
出版年: 2017
卷: 148 起始页码: 215
结束页码: 229
语种: 英语
英文关键词: New York City
; Particle number concentration
; PM2.5 mass concentration
; Positive matrix factorization
; Residual oil
; Source apportionment
Scopus关键词: Air pollution
; Chemical speciation
; Data handling
; Factorization
; Meteorology
; Particles (particulate matter)
; Pollution
; Roads and streets
; Mass concentration
; New York city
; Particle number concentration
; Positive Matrix Factorization
; Residual oil
; Source apportionment
; Matrix algebra
; ammonium nitrate
; ammonium sulfate
; oil
; zinc derivative
; atmospheric pollution
; chemical compound
; concentration (composition)
; matrix
; monitoring
; nucleation
; oil
; particulate matter
; sea salt
; size distribution
; source apportionment
; speciation (chemistry)
; traffic emission
; aerosol
; Article
; biomass
; concentration (parameters)
; dust
; exhaust gas
; heating
; mass
; New York
; particle number concentration
; particle size
; particulate matter
; priority journal
; traffic
; Kansas
; Manhattan
; New York [New York (STT)]
; New York [United States]
; 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: The major sources of fine particulate matter (PM2.5) in New York City (NYC) were apportioned by applying positive matrix factorization (PMF) to two different sets of particle characteristics: mass concentrations using chemical speciation data and particle number concentrations (PNC) using number size distribution, continuously monitored gases, and PM2.5 data. Post-processing was applied to the PMF results to: (i) match with meteorological data, (ii) use wind data to detect the likely locations of the local sources, and (iii) use concentration weighted trajectory models to assess the strength of potential regional/transboundary sources. Nine sources of PM2.5 mass were apportioned and identified as: secondary ammonium sulfate, secondary ammonium nitrate, road traffic exhaust, crustal dust, fresh sea-salt, aged sea-salt, biomass burning, residual oil/domestic heating and zinc. The sources of PNC were investigated using hourly average number concentrations in six size bins, gaseous air pollutants, mass concentrations of PM2.5, particulate sulfate, OC, and EC. These data were divided into 3 periods indicative of different seasonal conditions. Five sources were resolved for each period: secondary particles, road traffic, NYC background pollution (traffic and oil heating largely in Manhattan), nucleation and O3-rich aerosol. Although traffic does not account for large amounts of PM2.5 mass, it was the main source of particles advected from heavily trafficked zones. The use of residual oil had limited impacts on PM2.5 mass but dominates PNC in cold periods. © 2016 Elsevier Ltd Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/82352
Appears in Collections: 气候变化事实与影响
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作者单位: Center for Air Resources Engineering and Science, Clarkson University, Potsdam, NY, United States; NYS Department of Environmental Conservation, Division of Air Resources, Albany, NY, United States
Recommended Citation:
Masiol M,, Hopke P,K,et al. Source apportionment of PM2.5 chemically speciated mass and particle number concentrations in New York City[J]. Atmospheric Environment,2017-01-01,148