Delfino R J,Sioutas C,Malik S. Potential role of ultrafine particles in associations between airborne particle mass and cardiovascular health[J]. Environmental Health Perspectives,2005,113:934-946
[2]
Wichmann H E,Spix C,Tuch T. Daily mortality and fine and ultrafine particles in Erfurt, Germany, Part A:Role of particle number and particle mass[J]. Health Effects Institute Research Report,2000,98:5-86
[3]
Oberdorster G,Oberdorster E,Oberdorster J. Nanotoxicology:An emerging discipline evolving from studies of ultrafine particles[J]. Environmental Health Perspectives,2005,113:823-839
[4]
Kumar P,Robins A,Vardoulakis S,et al. A review of the characteristics of nanoparticles in the urban atmosphere and the prospects for developing regulatory controls[J]. Atmosphere Environment,2010,44:5035-5052
[5]
Kulmala M,Vehkam?ki H,Pet?j? T,et al. Formation and growth rates of ultrafine atmospheric particles:A review of observations[J]. JAerosol Science,2004,35:143-176
[6]
Holmes N S. A review of particle formation events and growth in the atmosphere in the various environments and discussion of mechanistic implications[J].Atmosphere Environment,2007,41:2183-2201
[7]
Zhou L M,Kim E,Hopke P K,et al. Advanced factor analysis on Pittsburgh particle size-distribution data[J]. Aerosol Science and Technology,2004,38:118-132
[8]
Wu Z J,Hu M,Lin P,et al. Particle number size distribution in the urban atmosphere of Beijing, China[J]. Atmosphere Environment,2008, 42:7967-7980
[9]
Paatero P. Least square formulation of robust nonnegative factor analysis[J]. ChemometrIntell Lab Syst,1997,37:23-35
[10]
Lee E,Chan C K,Paatero P. Application of positive matrix factorization in source apportionment of particulate pollutants in Hong Kong[J]. Atmosphere Environment,1999,33:3201-3212
[11]
Ramadan Z,Song X H,Hopke P K. Identification of sources of Phoenix aerosol by positive matrix factorization[J]. Journal of Air & Waste Manage Association,2000,50:1308-1320
Kim E,Hopke P K,Edgerton E S. Source identification of Atlanta aerosol by positive matrix factorization[J]. Journal of Air & Waste Manage Association,2003,53:731-739
Kim E,Hopke P K,Larson T V,et al. Analysis of ambient particle size distributions using Unmix and positive matrix factorization[J]. Environ Sci Technol,2004,38:202-209
[16]
Zhou L M,Kim E,Hopke P K,et al. Mining airborne particulate size distribution data by positive matrix factorization[J]. J Geophys Res,2005,110(7):1-15
[17]
Ogulei D,Hopke P K,Zhou L M,et al. Source apportionment of Baltimore aerosol from combined size distribution and chemical composition data[J]. Atmosphere Environment,2006,40(S2):396-410
[18]
Song Y,Dai W,Shao M,et al. Comparison of receptor models for source apportionment of volatile organic compounds in Beijing, China[J]. Environ Pollut,2008,156:174-183
[19]
Lanz V A,Hueglin C,Buchmann B,et al. Receptor modeling of C2-C7 hydrocarbon sources at an urban background site in Zurich, Switzerland:Changes between 1993-1994 and 2005-2006[J]. Atmos Chem Phys,2008,8:2313-2332
[20]
Paatero P,Tapper U.Positive matrix factorization-a nonnegative factor model with optimal utilization of error-estimates of data values[J]. Environmetrics,,1994,5:111-116
[21]
EPA:Positive Matrix Factorization (PMF) 3.0 Fundamentals & User Guide[S]. Washington,DC,2008
[22]
Paatero P,Hopke P K,Song X H,et al. Understanding and controlling rotations in factor analytic models[J]. ChemomIntell Lab Syst,2002,60:253-264
[23]
Kim E,Hopke P K. Comparison between conditional probability function and nonparametric regression for fine particle source directions[J]. Atmosphere Environment,2004,38:4667-4673
Wang Z B,Hu M,Wu Z J,et al.Long-term measurements of particle number size distributions and the relationships with air mass history and source apportionment in the summer of Beijing[J].Atmos Chem Phys,2013,13:10159-10170
[26]
Ulbrich I M,Canagaratna M R,Zhang Q,et al. Interpretation of organic components from Positive Matrix Factorization of aerosol mass spectrometric data[J]. Atmos Chem Phys,2009,9:2891-2918
[27]
Wehner B,Birmili W,Gnauk T,et al. Particle number size distributions in a street canyon and their transformation into the urban-air background:Measurements and a simple model study[J]. Atmosphere Environment,2002,36:2215-2223
[28]
Virtanen A,R?nkk? T,Kannosto J,et al. Winter and summer time size distributions and densities of traffic-related aerosol particles at a busy highway in Helsinki[J]. Atmos Chem Phys,2006,6:2411-2421
[29]
Gramotnev G,Ristovski Z. Experimental investigation of ultra-fine particle size distribution near a busy road[J]. Atmosphere Environment,2004,38:1767-1776
[30]
Yue W,Stolzel M,Cyrys J,et al. Source apportionment of ambient fine particle size distribution using positive matrix factorization in Erfurt, Germany[J]. Sci Total Environ,2008,398:133-144
[31]
Flowers B A,Dubey M K,Mazzoleni C.Optical-chemical-microphysical relationships and closure studies for mixed carbonaceous aerosols observed at Jeju Island:3-laser photoacoustic spectrometer, particle sizing, and filter analysis[J]. Atmos Chem Phys,2010,10:10387-10398
[32]
Yi H H,Hao J M,Duan L,et al. Characteristics of inhalable particulate matter concentration and size distribution from power plants in China[J]. Journal of Air & Waste Manage Association,2006,56:1243-1251
[33]
Li X,Duan L,Wang S,et al. Emission characteristics of particulate matter from rural household biofuel combustion in China[J]. Energ Fuel,2007,21:845-851