Search Results - "Davidovits, P"

Effect of oxidant concentration, exposure time, and seed particles on secondary organic aerosol chemical composition and yield by Lambe, A. T, Chhabra, P. S, Onasch, T. B, Brune, W. H, Hunter, J. F, Kroll, J. H, Cummings, M. J, Brogan, J. F, Parmar, Y, Worsnop, D. R, Kolb, C. E, Davidovits, P

“…We performed a systematic intercomparison study of the chemistry and yields of secondary organic aerosol (SOA) generated from OH oxidation of a common set of…”
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Soot Particle Aerosol Mass Spectrometer: Development, Validation, and Initial Application by Onasch, T. B., Trimborn, A., Fortner, E. C., Jayne, J. T., Kok, G. L., Williams, L. R., Davidovits, P., Worsnop, D. R.

“…The Soot Particle Aerosol Mass Spectrometer (SP-AMS) was developed to measure the chemical and physical properties of particles containing refractory black…”
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Laboratory studies of the chemical composition and cloud condensation nuclei (CCN) activity of secondary organic aerosol (SOA) and oxidized primary organic aerosol (OPOA) by Lambe, A. T., Onasch, T. B., Massoli, P., Croasdale, D. R., Wright, J. P., Ahern, A. T., Williams, L. R., Worsnop, D. R., Brune, W. H., Davidovits, P.

“…Secondary organic aerosol (SOA) and oxidized primary organic aerosol (OPOA) were produced in laboratory experiments from the oxidation of fourteen precursors…”
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Humidity-dependent phase state of SOA particles from biogenic and anthropogenic precursors by Saukko, E, Lambe, A. T, Massoli, P, Koop, T, Wright, J. P, Croasdale, D. R, Pedernera, D. A, Onasch, T. B, Laaksonen, A, Davidovits, P, Worsnop, D. R, Virtanen, A

“…The physical phase state (solid, semi-solid, or liquid) of secondary organic aerosol (SOA) particles has important implications for a number of atmospheric…”
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Viscous organic aerosol particles in the upper troposphere: diffusivity-controlled water uptake and ice nucleation? by Lienhard, D. M, Huisman, A. J, Krieger, U. K, Rudich, Y, Marcolli, C, Luo, B. P, Bones, D. L, Reid, J. P, Lambe, A. T, Canagaratna, M. R, Davidovits, P, Onasch, T. B, Worsnop, D. R, Steimer, S. S, Koop, T, Peter, T

“…New measurements of water diffusion in secondary organic aerosol (SOA) material produced by oxidation of α-pinene and in a number of organic/inorganic model…”
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Relationship between aerosol oxidation level and hygroscopic properties of laboratory generated secondary organic aerosol (SOA) particles by Massoli, P., Lambe, A. T., Ahern, A. T., Williams, L. R., Ehn, M., Mikkilä, J., Canagaratna, M. R., Brune, W. H., Onasch, T. B., Jayne, J. T., Petäjä, T., Kulmala, M., Laaksonen, A., Kolb, C. E., Davidovits, P., Worsnop, D. R.

“…Laboratory experiments investigated the relationship between oxidation level and hygroscopic properties of secondary organic aerosol (SOA) particles generated…”
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Characterization of aerosol photooxidation flow reactors: heterogeneous oxidation, secondary organic aerosol formation and cloud condensation nuclei activity measurements by Lambe, A. T., Ahern, A. T., Williams, L. R., Slowik, J. G., Wong, J. P. S., Abbatt, J. P. D., Brune, W. H., Ng, N. L., Wright, J. P., Croasdale, D. R., Worsnop, D. R., Davidovits, P., Onasch, T. B.

“…Motivated by the need to develop instrumental techniques for characterizing organic aerosol aging, we report on the performance of the Toronto Photo-Oxidation…”
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Chemical and microphysical characterization of ambient aerosols with the aerodyne aerosol mass spectrometer by 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., Worsnop, D.R.

“…The application of mass spectrometric techniques to the real‐time measurement and characterization of aerosols represents a significant advance in the field of…”
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Microphysical explanation of the RH‐dependent water affinity of biogenic organic aerosol and its importance for climate by Rastak, N., Pajunoja, A., Acosta Navarro, J. C., Ma, J., Song, M., Partridge, D. G., Kirkevåg, A., Leong, Y., Hu, W. W., Taylor, N. F., Lambe, A., Cerully, K., Bougiatioti, A., Liu, P., Krejci, R., Petäjä, T., Percival, C., Davidovits, P., Worsnop, D. R., Ekman, A. M. L., Nenes, A., Martin, S., Jimenez, J. L., Collins, D. R., Topping, D.O., Bertram, A. K., Zuend, A., Virtanen, A., Riipinen, I.

“…A large fraction of atmospheric organic aerosol (OA) originates from natural emissions that are oxidized in the atmosphere to form secondary organic aerosol…”
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The Detection Efficiency of the Single Particle Soot Photometer by Schwarz, J. P., Spackman, J. R., Gao, R. S., Perring, A. E., Cross, E., Onasch, T. B., Ahern, A., Wrobel, W., Davidovits, P., Olfert, J., Dubey, M. K., Mazzoleni, C., Fahey, D. W.

“…A single particle soot photometer (SP2) uses an intense laser to heat individual aerosol particles of refractory black carbon (rBC) to vaporization, causing…”
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A Novel Method for Estimating Light-Scattering Properties of Soot Aerosols Using a Modified Single-Particle Soot Photometer by Gao, R. S., Schwarz, J. P., Kelly, K. K., Fahey, D. W., Watts, L. A., Thompson, T. L., Spackman, J. R., Slowik, J. G., Cross, E. S., Han, J.-H., Davidovits, P., Onasch, T. B., Worsnop, D. R.

“…A Single-Particle Soot Photometer (SP2) detects black refractory or elemental carbon (EC) in particles by passing them through an intense laser beam. The laser…”
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Application of high-resolution time-of-flight chemical ionization mass spectrometry measurements to estimate volatility distributions of α-pinene and naphthalene oxidation products by Chhabra, P. S., Lambe, A. T., Canagaratna, M. R., Stark, H., Jayne, J. T., Onasch, T. B., Davidovits, P., Kimmel, J. R., Worsnop, D. R.

“…Recent developments in high-resolution time-of-flight chemical ionization mass spectrometry (HR-ToF-CIMS) have made it possible to directly detect atmospheric…”
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Single particle characterization using a light scattering module coupled to a time-of-flight aerosol mass spectrometer by Cross, E. S., Onasch, T. B., Canagaratna, M., Jayne, J. T., Kimmel, J., Yu, X.-Y., Alexander, M. L., Worsnop, D. R., Davidovits, P.

“…We present the first single particle results obtained with an Aerodyne time-of-flight aerosol mass spectrometer coupled with a light scattering module…”
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Oxidative aging and cloud condensation nuclei activation of laboratory combustion soot by Lambe, A.T., Ahern, A.T., Wright, J.P., Croasdale, D.R., Davidovits, P., Onasch, T.B.

“…Radiative forcing by aerosol particles containing black carbon (BC) may be positive or negative depending on specific atmospheric conditions. Black carbon…”
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Modeling organic aerosol from the oxidation of α-pinene in a Potential Aerosol Mass (PAM) chamber by Chen, S., Brune, W. H., Lambe, A. T., Davidovits, P., Onasch, T. B.

“…A model has been developed to simulate the formation and evolution of secondary organic aerosol (SOA) and was tested against data produced in a Potential…”
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Ozonolysis of Mixed Oleic-Acid/Stearic-Acid Particles:  Reaction Kinetics and Chemical Morphology by Katrib, Y, Biskos, G, Buseck, P. R, Davidovits, P, Jayne, J. T, Mochida, M, Wise, M. E, Worsnop, D. R, Martin, S. T

“…The ozonolysis of mixed oleic-acid/stearic-acid (OL/SA) aerosol particles from 0/100 to 100/0 wt % composition is studied. The magnitude of the divergence of…”
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Development of an Aerosol Mass Spectrometer for Size and Composition Analysis of Submicron Particles by Jayne, John T., Leard, Danna C., Zhang, Xuefeng, Davidovits, Paul, Smith, Kenneth A., Kolb, Charles E., Worsnop, Douglas R.

“…The importance of atmospheric aerosols in regulating the Earth's climate and their potential detrimental impact on air quality and human health has stimulated…”
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Density changes of aerosol particles as a result of chemical reaction by Katrib, Y., Martin, S. T., Rudich, Y., Davidovits, P., Jayne, J. T., Worsnop, D. R.

“…This paper introduces the capability to study simultaneously changes in the density, the chemical composition, the mobility diameter, the aerodynamic diameter,…”
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Mass Spectral Analysis of Organic Aerosol Formed Downwind of the Deepwater Horizon Oil Spill: Field Studies and Laboratory Confirmations by Bahreini, R, Middlebrook, A. M, Brock, C. A, de Gouw, J. A, McKeen, S. A, Williams, L. R, Daumit, K. E, Lambe, A. T, Massoli, P, Canagaratna, M. R, Ahmadov, R, Carrasquillo, A. J, Cross, E. S, Ervens, B, Holloway, J. S, Hunter, J. F, Onasch, T. B, Pollack, I. B, Roberts, J. M, Ryerson, T. B, Warneke, C, Davidovits, P, Worsnop, D. R, Kroll, J. H

“…In June 2010, the NOAA WP-3D aircraft conducted two survey flights around the Deepwater Horizon (DWH) oil spill. The Gulf oil spill resulted in an isolated…”
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A chemical kinetic model for reactive transformations of aerosol particles by Worsnop, D. R., Morris, J. W., Shi, Q., Davidovits, P., Kolb, C. E.

“…A simple formalism is presented to model chemical interactions between aerosols and reactive trace gases over a wide range of conditions. The model takes into…”
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