An Eddy-Covariance System for the Measurement of Surface/Atmosphere Exchange Fluxes of Submicron Aerosol Chemical Species—First Application Above an Urban Area

REFERENCES

• Aiken , A. C. , DeCarlo , P. F. and Jimenez , J. L. 2007 . Elemental Analysis of Organic Species with Electron Ionization High-Resolution Mass Spectrometry . Anal. Chem. , 79 : 8350 – 8358 . doi:10.1021/ac071150w
   PubMed Web of Science ®Google Scholar
• Aiken , A. C. , DeCarlo , P. F. , Kroll , J. H. , Worsnop , D. R. , Huffman , J. A. , Docherty , K. , Ulbrich , I. M. , Mohr , C. , Kimmel , J. R. , Sueper , D. , Zhang , Q. , Sun , Y. , Trimborn , A. , Northway , M. , Ziemann , P. J. , Canagaratna , M. R. , Onasch , T. B. , Alfarra , R. , Prevot , A. S. H. , Dommen , J. , Duplissy , J. , Metzger , A. , Baltensperger , U. and Jimenez , J. L. 2008 . O/C and OM/OC Ratios of Primary, Secondary, and Ambient Organic Aerosols with High Resolution Time-of-Flight Aerosol Mass Spectrometry . Environ. Sci. Technol. , 42 : 4478 – 4485 . doi: 10.1021/es703009q
   PubMed Web of Science ®Google Scholar
• Alfarra , M. R. , Coe , H. , Allan , J. D. , Bower , K. N. , Boudries , H. , Canagaratna , M. R. , Jimenez , J. L. , Jayne , J. T. , Garforth , A. , Li , S. M. and Worsnop , D. R. 2004 . Characterization of Urban and Regional Organic Aerosols in the Lower Fraser Valley using Two Aerodyne Aerosol Mass Spectrometers . Atmos. Environ. Part a—General Topics , 38 : 5745 – 5758 .
   Web of Science ®Google Scholar
• Alfarra , M. R. , Paulsen , D. , Gysel , M. , Garforth , A. A. , Dommen , J. , Prevot , A. S. H. , Worsnop , D. R. , Baltensperger , U. and Coe , H. 2006 . A Mass Spectrometric Study of Secondary Organic Aerosols Formed from the Photooxidation of Anthropogenic and Biogenic Precursors in a Reaction Chamber . Atmos. Chem. Phys. , 6 : 5279 – 5293 .
   Web of Science ®Google Scholar
• Allan , J. D. A. E., D. , Coe , H. , Bower , K. N. , Alfarra , M. R. , Jimenez , J. L. , Middlebrook , A. M. , Drewnick , F. , Onasch , T. B. , Canagaratna , M. R. , Jayne , J. T. and Worsnop , D. R. 2004 . Technical Note: A Generalised Method for the Extraction of Chemically Resolved Mass Spectra from Aerodyne Aerosol Mass Spectrometer Data . J. Aerosol Sci. , 35 : 909 – 922 .
   Web of Science ®Google Scholar
• Aubinet , M. , Grelle , A. , Ibrom , A. , Rannik , U. , Moncrieff , J. , Foken , T. , Kowalski , A. S. , Martin , P. H. , Berbigier , P. , Bernhofer , C. , Clement , R. , Elbers , J. , Granier , A. , Grunwald , T. , Morgenstern , K. , Pilegaard , K. , Rebmann , C. , Snijders , W. , Valentini , R. and Vesala , T. 2000 . Estimates of the Annual Net Carbon and Water Exchange of Forests: The EUROFLUX Methodology . Advances in Ecological Research , 30 : 113 – 175 .
   Web of Science ®Google Scholar
• Bahreini , R. , Jimenez , J. L. , Wang , J. , Flagan , R. C. , Seinfeld , J. H. , Jayne , J. T. and Worsnop , D. R. 2003 . Aircraft-Based Aerosol Size and Composition Measurements During ACE–Asia Using an Aerodyne Aerosol Mass Spectrometer . J. Geophys. Res.—Atmospheres , 108 art. no.–8645
   Web of Science ®Google Scholar
• Bahreini , R. , Keywood , M. D. , Ng , N. L. , Varutbangkul , V. , Gao , S. , Flagan , R. C. , Seinfeld , J. H. , Worsnop , D. R. and Jimenez , J. L. 2005 . Measurements of Secondary Organic Aerosol (SOA) from Oxidation of Cycloalkenes, Terpenes, and M-xylene Using an Aerodyne Aerosol Mass Spectromter . Environ. Sci. Technol. , 39 : 5674 – 5688 .
   PubMed Web of Science ®Google Scholar
• Brost , R. A. , Delany , A. C. and Huebert , B. J. 1988 . Numerical Modeling of Concentrations and Fluxes of HNO3, NH3, and NH4NO3 Near the Surface . J. Geophys. Res.–Atmospheres , 93 : 7137 – 7152 .
   Web of Science ®Google Scholar
• Buzorius , G. , Rannik , U. , Makela , J. M. , Vesala , T. and Kulmala , M. 1998 . Vertical Aerosol Particle Fluxes Measured by Eddy Covariance Technique Using Condensational Particle Counter . J. Aerosol Sci. , 29 : 157 – 171 .
   Web of Science ®Google Scholar
• Buzorius , G. , Rannik , U. , Nilsson , D. and Kulmala , M. 2001 . Vertical Fluxes and Micrometeorology During Aerosol Particle Formation Events . Tellus Series B–Chemical and Physical Meteorology , 53 : 394 – 405 .
   Web of Science ®Google Scholar
• Canagaratna , M. J. , Jayne , J. T. , Ghertner , D. A. , Herndon , S. , Shi , Q. , Jimenez , J. L. , Silva , P. J. , Williams , P. I. , Lanni , T. , Drewnick , F. , Demerjian , K. L. , Kolb , C. E. and Worsnop , D. R. 2004 . Chase Studies of Particulate Emissions from in–use New York City Vehicles . Aerosol Sci. Technol. , 38 : 555 – 573 .
   Web of Science ®Google Scholar
• Canagaratna , M. R. , Jayne , J. T. , Jimenez , J. L. , Allan , J. D. , Alfarra , M. R. , Zhang , Q. , Onasch , T. B. , Drewnick , F. , Coe , H. , Middlebrook , A. , Delia , A. , Williams , L. R. , Trimborn , A. M. , Northway , M. J. , DeCarlo , P. F. , Kolb , C. E. , Davidovits , P. and Worsnop , D. R. 2007 . Chemical and Microphysical Characterisation of Ambient Aerosols with the Aerodyne Aerosol Mass Spectrometer . Mass Spectrom. Rev. , 26 : 185 – 222 .
   PubMed Web of Science ®Google Scholar
• Charlson , R. J. , Schwartz , S. E. , Hales , J. M. , Cess , R. D. , Coakley , J. A. , Hansen , J. E. and Hofmann , D. J. 1992 . Climate Forcing by Anthropogenic Aerosols . Science , 255 : 423 – 430 .
   PubMed Web of Science ®Google Scholar
• Crosier , J. , Jimenez , J. L. , Allan , J. D. , Bower , K. N. , Williams , P. I. , Alfarra , M. R. , Canagaratna , M. R. , Jayne , J. T. , Worsnop , D. R. and Coe , H. 2007 . Technical Note: Description and use of the New Jump Mass Spectrum Mode of Operation for the Aerodyne Quadrupole Aerosol Mass Spectrometer (Q-AMS) . Aerosol Sci. Technol. , 41 : 865 – 872 .
   Web of Science ®Google Scholar
• DeCarlo , P. , Slowik , J. G. , Worsnop , D. R. , Davidovits , P. and Jimenez , J. L. 2004 . Particle Morphology and Density Characterization by Combined Mobility and Aerodynamic Diameter Measurements. Part 1: Theory . Aerosol Sci. Technol. , 38 : 1185 – 1205 .
   Web of Science ®Google Scholar
• DeCarlo , P. F. , Kimmel , J. R. , Trimborn , A. , Northway , M. J. , Jayne , J. T. , Aiken , A. C. , Gonin , M. , Fuhrer , K. , Horvath , T. , Docherty , K. , Worsnop , D. R. and Jimenez , J. L. 2006 . Field-Heployable, High-Resolution, Time-of-Flight Aerosol Mass Spectrometer . Anal. Chem. , 78 : 8281 – 8289 .
   PubMed Web of Science ®Google Scholar
• Dockery , D. W. , Pope , C. A. , Xu , X. , Spengler , J. D. , Ware , J. H. , Fay , M. E. , Ferris , B. G. and Speizer , F. E. 1993 . Mortality Risks of Air Pollution: A Prospective Cohort Study . New Eng. J. Med. , 329 : 1753 – 1759 .
   PubMed Web of Science ®Google Scholar
• Dorsey , J. R. , Nemitz , E. , Gallagher , M. W. , Fowler , D. , Williams , P. I. , Bower , K. N. and Beswick , K. M. 2002 . Direct Measurements and Parameterisation of Aerosol Flux, Concentration and Emission Velocity Above a City . Atmos. Environ. , 36 : 791 – 800 .
   Web of Science ®Google Scholar
• Drewnick , F. , Hings , S. S. , DeCarlo , P. F. , Jayne , J. T. , Gonin , M. , Fuhrer , K. , Weimer , S. , Jimenez , J. L. , Demerjian , K. L. , Borrmann , S. and Worsnop , D. R. 2005 . A New Time-of-Flight Aerosol Mass Spectrometer (TOF-AMS)—Instrument Description and First Field Deployment . Aerosol Sci. Technol. , 39 : 637 – 658 .
   Web of Science ®Google Scholar
• Duyzer , J. 1994 . Dry Deposition of Ammonia and Ammonium Aerosols over Heathland . J. Geophys. Res.-Atmospheres , 99 : 18757 – 18763 .
   Web of Science ®Google Scholar
• Fairall , C. W. 1984 . Interpretation of Eddy–Correlation Measurements of Particulate Deposition and Aerosol Flux . Atmos. Environ. , 18 : 1329 – 1337 .
   Web of Science ®Google Scholar
• Gallagher , M. W. , Beswick , K. M. , Duyzer , J. , Westrate , H. , Choularton , T. W. and Hummelshoj , P. 1997 . Measurements of Aerosol Fluxes to Speulder Forest Using a Micrometeorological Technique . Atmos. Environ. , 31 : 359 – 373 .
   Web of Science ®Google Scholar
• Gallagher , M. W. , Nemitz , E. , Dorsey , J. R. , Fowler , D. , Sutton , M. A. , Flynn , M. and Duyzer , J. 2002 . Measurements and Parameterizations of Small Aerosol Deposition Velocities to Grassland, Arable Crops and Forest: Influence of Surface Roughness Length on Deposition . J. Geophys. Res.-Atmospheres , 107 : 4154 doi:4110.1029/2001JD000817
   Web of Science ®Google Scholar
• Gaman , A. , Rannik , U. , Aalto , P. , Pohja , T. , Siivola , E. , Kulmala , M. and Vesala , T. 2004 . Relaxed Eddy Accumulation System for Size-Resolved Aerosol Particle Flux Measurements . J. Atmos. Oceanic Technol. , 21 : 933 – 943 .
   Web of Science ®Google Scholar
• Gonzales , D. A. , Allen , J. O. , Delia , A. E. , Jimenez , J. L. , Smith , K. A. , Jayne , J. T. , Canagaratna , M. R. and Worsnop , D. R. Speciated Fine Particle Deposition Velocities Over a Forest Canopy Measured by Eddy-Correlation Mass Spectrometry . 22nd Annual AAAR Conference, October 20–24, 2003 . Anaheim, California : American Association for Aerosol Research . Poster 2PC11, p. 58
   Google Scholar
• Grimmond , C. S. B. , King , T. S. , Cropley , F. D. , Nowak , D. J. and Souch , C. 2002 . Local-Scale Fluxes of Carbon Dioxide in Urban Environments: Methodological Challenges and Results from Chicago . Environ. Pollut. , 116 : S243 – S254 .
   PubMed Web of Science ®Google Scholar
• Grönholm , T. , Aalto , P. P. , Hiltunen , V. , Rannik , U. , Rinne , J. , Laakso , L. , Hyvonen , S. , Vesala , T. and Kulmala , M. 2007 . Measurement of Aerosol Particle Dry Deposition Velocities Using Relaxed Eddy Accumulation Technique . Tellus , 59B : 381 – 386 .
   Google Scholar
• Held , A. , Hinz , K.-P. , Trimborn , A. , Spengler , B. and Klemm , O. 2003 . Towards Direct Measurement of Trubulent Vertical Fluxes of Compounds in Atmospheric Aerosol Particles . Geophys. Res. Lett. , 30 Article No. 2016, doi: 10.1029/2003GL017854
   Web of Science ®Google Scholar
• Hogrefe , O. , Drewnick , F. , Lala , G. G. , Schwab , J. J. and Demerjian , K. L. 2004 . Development, Operation and Applications of an Aerosol Generation, Calibration and Research Facility . Aerosol Sci. Technol. , 38 ( S1 ) : 196 – 214 .
   Web of Science ®Google Scholar
• Huffman , J. A. , Jayne , J. T. , Drewnick , F. , Aiken , A. C. , Onasch , T. B. , Worsnop , D. R. and Jimenez , J. L. 2005 . Design, Modeling, Optimization and Experimental Tests of a Particle Beam Width Probe for the Aerodyne Aerosol Mass Spectrometer . Aerosol Sci. Technol. , 39 : 1143 – 1163 .
   Web of Science ®Google Scholar
• Jayne , J. T. , Leard , D. C. , Zhang , X. , Davidovits , P. , Smith , K. A. , Kolb , C. E. and Worsnop , D. R. 2000 . Development of an Aerosol Mass Spectrometer for Size and Composition Analysis of Submicron Particles . Aerosol Sci. Technol. , 33 : 49 – 70 .
   Web of Science ®Google Scholar
• Jimenez , J. L. , Nelson , D. D. , Zahniser , M. S. , Koplow , M. D. and Schmidt , S. E. 1999 . Characterization of On-Road Vehicle NO Emissions by a TILDAS Remote Sensor . J. Air and Waste Manag. Assoc. , 49 : 463 – 470 .
   PubMedGoogle Scholar
• Jimenez , J. L. , McRae , G. J. , Nelson , D. D. , Zahniser , M. S. and Kolb , C. E. 2000 . Remote Sensing of Heavy Duty Diesel Truck NO and NO2 Emissions Using Tunable Diode Lasers . Environ. Sci. Technol. , 32 : 2380 – 2387 .
   Web of Science ®Google Scholar
• Jimenez , J. L. , Jayne , J. T. , Shi , Q. , Kolb , C. E. , Worsnop , D. R. , Yourshaw , I. , Seinfeld , J. H. , Flagan , R. C. , Zhang , X. F. , Smith , K. A. , Morris , J. W. and Davidovits , P. 2003 . Ambient Aerosol Sampling Using the Aerodyne Aerosol Mass Spectrometer . J. Geophys. Res.–Atmospheres , 108 : 8425 doi:8410.1029/2001JD001213
   Web of Science ®Google Scholar
• Kirchstetter , T. W. , Harley , R. A. , Kreisberg , N. M. , Stolzenburg , M. R. and Hering , S. V. 1999 . On–Road Measurements of the Particle and Nitrogen Oxide Emissions from Light- and Heavy-Duty Vehicles . Atmos. Environ. Part a–General Topics , 33 : 2955 – 2968 .
   Web of Science ®Google Scholar
• Kowalski , A. S. 2001 . Deliquescence Induces Eddy Covariance and Estimable Dry Deposition Errors . Atmos. Environ. , 35 : 4843 – 4851 .
   Web of Science ®Google Scholar
• Lanz , V. A. , Alfarra , M. R. , Baltensperger , U. , Buchmann , B. , Hueglin , C. and Prevot , A. S. H. 2007 . Source Apportionment of Submicron Organ Aerosols at an Urban Site by Factor Analytical Modelling of Aersosol Mass Spectra . Atmos. Chem. Phys. , 7 : 1503 – 1522 .
   Web of Science ®Google Scholar
• Martensson , E. M. , Nilsson , E. D. and Johansson , C. Emissions of Aerosol Particles in the Urban Environment Measured by Eddy Orrelation . 6th International Aerosol Conference . September 9–13 2002 , Taiwan.
   Google Scholar
• Mohr , C. , Huffman , J. A. , Cubison , M. J. , Aiken , A. C. , Docherty , K. S. , Kimmel , J. R. , Ulbrich , I. M. , Hannigan , M. , Garcia , J. and Jimenez , J. L. 2008 . Characterization of Primary Organic Aerosol Emissions from Meat Cooking, Trash Burning, and Motor Vehicles with High-Resolution Aerosol Mass Spectrometry and Comparison with Ambient and Chamber Observations . Environ. Sci. Technol. , submitted
   PubMed Web of Science ®Google Scholar
• Nemitz , E. , Sutton , M. A. , Wyers , G. P. , Otjes , R. P. , Schjoerring , J. K. , Gallagher , M. W. , Parrington , J. , Fowler , D. and Choularton , T. W. 2000a . Surface/Atmosphere Exchange and Chemical Interaction of Gases and Aerosols Over Oilseed Rape . Agricult. Forest Meteorol. , 105 : 427 – 445 .
   Web of Science ®Google Scholar
• Nemitz , E. , Williams , P. I. , Theobald , M. R. , McDonald , A. G. , Fowler , D. and Gallagher , M. W. 2000b . “ Application of Two Micrometeorological Techniques to Derive Fluxes of Aerosol Components Above a City ” . In EUROTRAC–2 Symposium 2000 , Edited by: Midgley , P. M. , Reuther , M. and Williams , M. Berlin, Garmisch-Partenkirchen, , Germany : Springer Verlag .
   Google Scholar
• Nemitz , E. , Gallagher , M. W. , Duyzer , J. H. and Fowler , D. 2002a . Micrometeorological Measurements of Particle Deposition Velocities to Moorland Vegetation . Quart. J. Royal Meteorol. Soc. , 128 : 2281 – 2300 .
   Web of Science ®Google Scholar
• Nemitz , E. , Hargreaves , K. J. , McDonald , A. G. , Dorsey , J. R. and Fowler , D. 2002b . Micrometeorological Measurements of the Urban Heat Budget and CO2 Emissions on a City Scale . Environ. Sci. Technol. , 36 : 3139 – 3146 .
   PubMed Web of Science ®Google Scholar
• Nemitz , E. and Sutton , M. A. 2004 . Gas–Particle Interactions Above a Dutch Heathland: III. Modelling the Influence of the NH3-HNO3-NH4NO3 Equilibrium on Size–Segregated Particle Fluxes . Atmos. Chem. Phys. , 4 : 1025 – 1045 .
   Web of Science ®Google Scholar
• Nemitz , E. , Sutton , M. A. , Wyers , G. P. , Otjes , R. P. , Mennen , M. G. , van Putten , E. , Hellemond , J. and Gallagher , M. W. 2004 . Gas–Particle Interactions Above a Dutch Heathland: II. Concentrations and Surface Exchange Fluxes of Atmospheric Particles . Atmos. Chem. Phys. , 4 : 1007 – 1024 .
   Web of Science ®Google Scholar
• Nemitz , E. , Theobald , M. R. , McDonald , A. G. , Dorsey , J. R. , Gallagher , M. W. and Fowler , D. 2007 . Size–Segregated Particle Emissions Above a City Derived by a Micrometeorological Technique . Environ. Sci. Technol. , [in preparation]
   Google Scholar
• Offerle , B. , Grimmond , S. , Oke , T. , Fortuniak , K. , Hom , J. , Salmond , J. , Golub , D. and Walsh , C. 2001 . Energy and CO2 Fluxes from Contrasting Urban Environments (Marseille, France; Lodz, Poland; Baltimore, USA; and Vancouver, B.C.) . American Geophysical Union , San Francisco, December 2001
   Google Scholar
• Okumura , M. , Mollner , A. K. , Fry , J. L. , Feng , L. , Sander , S. P. and Sivakumaran , V. 2005 . Gas-Phase Formation Rates of Nitric Acid and its Isomers Under Urban Conditions, Final Report CARB Contract No. 03–333., prepared for: State of California Air Resources Board, Sacramento, CA
   Google Scholar
• Ramanathan , V. , Crutzen , P. J. , Kiehl , J. T. and Rosenfeld , D. 2001 . Atmosphere-Aerosols, Climate, and the Hydrological Cycle . Science , 294 : 2119 – 2124 .
   PubMed Web of Science ®Google Scholar
• Robinson , A. L. , Donahue , N. M. , Shrivastava , M. K. , Weitkamp , E. A. , Sage , A. M. , Grieshop , A. P. , Lane , T. E. , Pierce , J. R. and Pandis , S. N. 2007 . Rethinking Organic Aerosols: Semivolatile Emissions and Photochemical Aging . Science , 2 : 1259 – 1262 .
   Web of Science ®Google Scholar
• Salcedo Onac , D. , Canagaratna , M. R. , Dzepina , K. , Huffman , J. A. , Jayne , J. T. , Worsnop , D. R. , Kolb , C. E. , Weimer , S. , Drewnick , F. , Allan , J. D. , Delia , A. E. and Jimenez , J. L. 2007 . Technical note: Use of a Beam Width Probe in an Aerosol Mass Spectrometer to Monitor Particle Collection Efficiency in the Field . Atmos. Chem. Phys. , 7 : 549 – 556 .
   Web of Science ®Google Scholar
• Schery , S. D. , Wasiolek , P. T. , Nemetz , B. M. and Yarger , F. D. 1998 . Relaxed Eddy Accumulation for Flux Measurements of Nanometer–Size Particles . Aerosol Sci. Technol. , 28 : 159 – 172 .
   Web of Science ®Google Scholar
• Slinn , W. G. N. 1982 . Prediction for Particle Deposition to Vegetative Canopies . Atmos. Environ. , 16 : 1785 – 1794 .
   Web of Science ®Google Scholar
• Soegaard , H. and Jansen , L. M. 2004 . “ Towards a Spatial CO2 Budget of Metropolitan Regions Based on Textural Image Classification and Flux Measurements ” . In Remote Sensing and the Environment Article 5925
   Google Scholar
• Sutton , M. A. 1990 . “ The Surface/Atmosphere Exchange of Ammonia ” . In Institute of Terrestrial Ecology and Resource Mangement , 194 Edinburgh : University of Edinburgh .
   Google Scholar
• Thomas , R. , Trebs , I. , Otjes , R. , Jongejan , P. A. C. , ten Brink , H. , Phillips , G. , Korner , M. , Meixner , F. X. and Nemitz , E. 2007a . An Automated Analyser to Measure Surface–Atmosphere Exchange Fluxes of Water Soluble Inorganic Aerosol Compounds and Reactive Trace Gases . Environ. Sci. Technol. , [under review]
   Web of Science ®Google Scholar
• Thomas , R. M. , Hallquist , M. , Janhill , S. , House , E. , Coe , H. and Nemitz , E. 2007b . Fluxes of Submicron Aerosol Components Above an Urban Canopy: Measurements During the GOTE–2005 Campaign . Atmos. Chem. Phys. , [in preparation]
   Google Scholar
• Ulbrich , I. M. , Canagaratna , M. R. , Zhang , Q. , Worsnop , D. R. and Jimenez , J. L. 2008 . Interpretation of Organic Components from Positive Matrix Factorization of Aerosol Mass Spectrometric Data . Atmos. Chem. Phys. Discuss. , 8 : 6729 – 6791 .
   Google Scholar
• US–EPA . 1995 . Compilation of Air Pollutant Emission Factors, AP–42 , Research Triangle Park, NC : U.S. Environmental Protection Agency .
   Google Scholar
• Velasco , E. , Lamb , B. , Pressley , S. , Allwine , E. , Westberg , H. , Jobson , B. T. , Alexander , M. , Prazeller , P. , Molina , L. and Molina , M. 2005 . Flux Measurements of Volatile Organic Compounds from an Urban Landscape . Geophysical Research Letters , : 32
   Web of Science ®Google Scholar
• Vogt , R. , Christen , A. , Rotach , M. W. , Roth , M. and Satyanarayana , A. N. V. Fluxes and Profiles of CO2 in the Urban Roughness Sublayer . Fifth International Conference on Urban Climate . September 1–5 2003 , Lodz, Poland. pp. 4
   Google Scholar
• Volkamer , R. , Jimenez , J. L. , San Martini , F. , Dzepina , K. , Zhang , Q. , Salcedo , D. , Molina , L. T. , Worsnop , D. R. and Molina , M. J. 2006 . Secondary Organic Aerosol Formation from Anthropogenic Air Pollution: Rapid and Higher than Expected . Geophysical Research Letters , 33 doi:10.1029/ 2006GL026899 Article No. L017811
   PubMed Web of Science ®Google Scholar
• Watson , J. G. 2002 . Visibility: Science and Regulation . J. Air & Waste Manag. Assoc. , 52 : 628 – 713 .
   PubMedGoogle Scholar
• Webb , E. K. , Pearman , G. I. and Leuning , R. 1980 . Correction of Flux Measurements for Density Effects Due to Heat and Water Vapour Transfer . Quart. J. Royal Meteorol. Soc. , 106 : 85 – 100 .
   Web of Science ®Google Scholar
• Wesely , M. L. , Cook , D. R. , Hart , R. L. and Speer , R. E. 1985 . Measurements and Parameterization of Particulate Sulfur Dry Deposition Over Grass . J. Geophys. Res.–Atmospheres , 90 : 2131 – 2143 .
   Web of Science ®Google Scholar
• Wyers , G. P. and Duyzer , J. H. 1997 . Micrometeorological Measurement of the Dry Deposition Flux of Sulphate and Nitrate Aerosols to Coniferous Forest . Atmos. Environ. , 31 : 333 – 343 .
   Web of Science ®Google Scholar
• Zhang , Q. , Alfarra , R. , Worsnop , D. , Allan , J. , Coe , H. , Canagaratna , M. and Jimenez , J. 2005a . Deconvolution and Quantification of Hydrocarbon–Like and Oxygenated Organic Aerosols Based on Aerosol Mass Spectrometry . Environ. Sci. Technol. , 39 : 4938 – 4952 .
   PubMed Web of Science ®Google Scholar
• Zhang , Q. , Canagaratna , M. R. , Jayne , J. T. , Worsnop , D. R. and Jimenez , J. L. 2005b . Time and Size-Resolved Chemical Composition of Submicron Particles in Pittsburgh-Implications for Aerosol Sources and Processes . J. Geophys. Res.–Atmospheres , 110 D07S09
   Web of Science ®Google Scholar
• Zhang , Q. , Worsnop , D. R. , Canagaratna , M. R. and Jimenez , J. L. 2005c . Hydrocarbon–Like and Oxygenated Organic Aerosols in Pittsburgh: Insights into Sources and Processes of Organic Aerosols . Atmos. Chem. Phys. , 5 : 3289 – 3311 .
   Web of Science ®Google Scholar
• Zhang , Q. , Jimenez , J. L. , Canagaratna , M. J. , Allan , J. D. , Coe , H. , Ulbrich , I. , Alfarra , M. R. , Takami , A. , Middlebrook , A. M. , Sun , Y. L. , Dzepina , K. , Dunlea , E. , Docherty , K. , DeCarlo , P. F. , Salcedo , D. , Onasch , T. , Jayne , J. T. , Miyoshi , T. , Shimono , A. , Hatakeyama , S. , Takegawa , N. , Kondo , Y. , Schneider , J. , Drewnick , F. , Weimer , S. , Demerjian , K. , Williams , P. , Bower , K. , Bahreini , R. , Cottrell , L. , Griffin , R. J. , Rautiainen , J. and Worsnop , D. R. 2007 . Ubiquity and Dominance of Oxygenated Species in Organic Aerosols in Anthropogenically Influenced Northern Hemisphere Mid-Latitudes . Geophys. Res. Lett. , 34 doi:10.1029/2007GL029979 Article No. L013801
   Web of Science ®Google Scholar