Search Results - "Worsnop, D.R"

Characterization of submicron aerosol chemical composition and sources in the coastal area of Central Chile by Saarikoski, S., Reyes, F., Vázquez, Y., Tagle, M., Timonen, H., Aurela, M., Carbone, S., Worsnop, D.R., Hillamo, R., Oyola, P.

“…Chemical characteristics and the sources of submicron particles (<1 μm in diameter) were investigated in Valle Alegre, the coastal area of Central Chile. The…”
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Chemistry of atmospheric nucleation: on the recent advances on precursor characterization and atmospheric cluster composition in connection with atmospheric new particle formation by Kulmala, M, Petäjä, T, Ehn, M, Thornton, J, Sipilä, M, Worsnop, D R, Kerminen, V-M

“…The recent development in measurement techniques and theoretical understanding has enabled us to study atmospheric vapor, cluster and nanoparticle…”
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New particle formation in the free troposphere: A question of chemistry and timing by Bianchi, F., Tröstl, J., Junninen, H., Frege, C., Henne, S., Hoyle, C. R., Molteni, U., Herrmann, E., Adamov, A., Bukowiecki, N., Chen, X., Duplissy, J., Gysel, M., Hutterli, M., Kangasluoma, J., Kontkanen, J., Kürten, A., Manninen, H. E., Münch, S., Peräkylä, O., Petäjä, T., Rondo, L., Williamson, C., Weingartner, E., Curtius, J., Worsnop, D. R., Kulmala, M., Dommen, J., Baltensperger, U.

“…New particle formation (NPF) is the source of over half of the atmosphere's cloud condensation nuclei, thus influencing cloud properties and Earth's energy…”
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Effect of relative humidity on the detection of sulfur dioxide and sulfuric acid using a chemical ionization mass spectrometer by Salcedo, D., Villalta, P.W., Varutbangkul, V., Wormhoudt, J.C., Miake-Lye, R.C., Worsnop, D.R., Ballenthin, J.O., Thorn, W.F., Viggiano, A.A., Miller, T.M., Flagan, R.C., Seinfeld, J.H.

“…Detection of sulfur dioxide and sulfuric acid at high relative humidity was studied using a chemical ionization mass spectrometer (CIMS). The reactant ions…”
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Chemical composition, sources and secondary processes of aerosols in Baoji city of northwest China by Wang, Y.C., Huang, R.-J., Ni, H.Y., Chen, Y., Wang, Q.Y., Li, G.H., Tie, X.X., Shen, Z.X., Huang, Y., Liu, S.X., Dong, W.M., Xue, P., Fröhlich, R., Canonaco, F., Elser, M., Daellenbach, K.R., Bozzetti, C., El Haddad, I., Prévôt, A.S.H., Canagaratna, M.R., Worsnop, D.R., Cao, J.J.

“…Particulate air pollution is a severe environmental problem in China, affecting visibility, air quality, climate and human health. However, previous studies…”
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Terpene Composition Complexity Controls Secondary Organic Aerosol Yields from Scots Pine Volatile Emissions by Faiola, C. L., Buchholz, A., Kari, E., Yli-Pirilä, P., Holopainen, J. K., Kivimäenpää, M., Miettinen, P., Worsnop, D. R., Lehtinen, K. E. J., Guenther, A. B., Virtanen, A.

“…Secondary organic aerosol (SOA) impact climate by scattering and absorbing radiation and contributing to cloud formation. SOA models are based on studies of…”
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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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Effect of dimethylamine on the gas phase sulfuric acid concentration measured by Chemical Ionization Mass Spectrometry by Rondo, L., Ehrhart, S., Kürten, A., Adamov, A., Bianchi, F., Breitenlechner, M., Duplissy, J., Franchin, A., Dommen, J., Donahue, N. M., Dunne, E. M., Flagan, R. C., Hakala, J., Hansel, A., Keskinen, H., Kim, J., Jokinen, T., Lehtipalo, K., Leiminger, M., Praplan, A., Riccobono, F., Rissanen, M. P., Sarnela, N., Schobesberger, S., Simon, M., Sipilä, M., Smith, J. N., Tomé, A., Tröstl, J., Tsagkogeorgas, G., Vaattovaara, P., Winkler, P. M., Williamson, C., Wimmer, D., Baltensperger, U., Kirkby, J., Kulmala, M., Petäjä, T., Worsnop, D. R., Curtius, J.

“…Sulfuric acid is widely recognized as a very important substance driving atmospheric aerosol nucleation. Based on quantum chemical calculations it has been…”
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Bubble Column Apparatus for Gas-Liquid Heterogeneous Chemistry Studies by Shorter, Jeffrey A, De Bruyn, Warren J, Hu, Jainhong, Swartz, Erick, Davidovits, Paul, Worsnop, Douglas R, Zahniser, Mark S, Kolb, Charles E

“…A novel bubble column apparatus used to study the heterogeneous chemistry of atmospheric trace gases is described and tested…”
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The relative importance of competing pathways for the formation of high-molecular-weight peroxides in the ozonolysis of organic aerosol particles by Mochida, M., Katrib, Y., Jayne, J. T., Worsnop, D. R., Martin, S. T.

“…High-molecular-weight (HMW) organic compounds are an important component of atmospheric particles, although their origins, possibly including in situ formation…”
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Hygroscopicity of particles at two rural, urban influenced sites during Pacific 2001: Comparison with estimates of water uptake from particle composition by Aklilu, Y., Mozurkewich, M., Prenni, A.J., Kreidenweis, S.M., Alfarra, M.R., Allan, J.D., Anlauf, K., Brook, J., Leaitch, W.R., Sharma, S., Boudries, H., Worsnop, D.R.

“…Hygroscopicity of particles was measured at Langley (rural) and Eagle Ridge (semi-rural) as part of the Pacific 2001 field campaign. The measured growth…”
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Uptake of Gas-Phase Ammonia. 1. Uptake by Aqueous Surfaces as a Function of pH by Shi, Q, Davidovits, P, Jayne, J. T, Worsnop, D. R, Kolb, C. E

“…The uptake of gas-phase ammonia by aqueous surfaces was measured as a function of temperature, gas liquid interaction time, and pH in the range 0−13. Uptake…”
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Effect of ions on sulfuric acid-water binary particle formation II: Experimental data and comparison with QC-normalized classical nucleation theory by Duplissy, Jonathan, Merikanto, J., Franchin, A., Tsagkogeorgas, G., Kangasluoma, J., Wimmer, D., Vuollekoski, H., Schobesberger, S., Lehtipalo, K., Flagan, R.C., Brus, D., Donahue, N.M., Vehkämäki, H., Almeida, J., Amorim, A., Barmet, P., Bianchi, F., Breitenlechner, M., Dunne, E.M., Guida, R., Henschel, H., Junninen, H., Kirkby, J., Kürten, A., Kupc, A., Määttänen, Anni, Makhmutov, V., Mathot, S., Nieminen, T., Onnela, A., Praplan, A.P., Riccobono, F., Rondo, L., Steiner, G., Tome, A., Walther, H., Baltensperger, U., Carslaw, K.S., Dommen, J., Hansel, A., Petäjä, T., Sipilä, M., Stratmann, F., Vrtala, A., Wagner, P.E., Worsnop, D.R., Curtius, J., Kulmala, M.

“…We report comprehensive, demonstrably contaminant-free measurements of binary particle formation rates by sulfuric acid and water for neutral and ion-induced…”
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Implementation of a Markov Chain Monte Carlo method to inorganic aerosol modeling of observations from the MCMA-2003 campaign – Part II: Model application to the CENICA, Pedregal and Santa Ana sites by San Martini, F. M., Dunlea, E. J., Volkamer, R., Onasch, T. B., Jayne, J. T., Canagaratna, M. R., Worsnop, D. R., Kolb, C. E., Shorter, J. H., Herndon, S. C., Zahniser, M. S., Salcedo, D., Dzepina, K., Jimenez, J. L., Ortega, J. M., Johnson, K. S., McRae, G. J., Molina, L. T., Molina, M. J.

“…A Markov Chain Monte Carlo model for integrating the observations of inorganic species with a thermodynamic equilibrium model was presented in Part I of this…”
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The environmental impact of CFC replacements - HFCs and HCFCs by Wallington, Timothy J, Schneider, William F, Worsnop, Douglas R, Nielsen, Ole J, Sehested, Jens, Debruyn, Warren J, Shorter, Jeffrey A

“…There are several replacements for CFCs now that CFCs are all but banned from commercial use. The ability of hydrofluorocarbons and hydrochlorofluorocarbons to…”
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Uptake of Gas-Phase Ammonia. 2. Uptake by Sulfuric Acid Surfaces by Swartz, E, Shi, Q, Davidovits, P, Jayne, J. T, Worsnop, D. R, Kolb, C. E

“…The uptake of gas-phase ammonia by sulfuric acid surfaces was measured as a function of temperature (248−288 K), gas−liquid interaction time (2−15 ms), and…”
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Demonstration of a VUV lamp photoionization source for improvedorganic speciation in an aerosol mass spectrometer by Northway, M.J., Jayne, J.T., Toohey, D.W., Canagaratna, M.R., Trimborn, A., Akiyama, K-I., Shimono, A., Jimenez, J.L., DeCarlo, P.F., Wilson, K.R., Worsnop, D.R.

“…In recent years, the Aerodyne AerosolMass Spectrometer(AMS) has become a widely used tool for determining aerosol sizedistributions and chemical composition…”
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Chemical and physical processes controlling the distribution of aerosols in the Lower Fraser Valley, Canada, during the Pacific 2001 field campaign by Boudries, H., Canagaratna, M.R., Jayne, J.T., Alfarra, M.R., Allan, J., Bower, K.N., Coe, H., Pryor, S.C., Jimenez, J.L., Brook, J.R., Li, S., Worsnop, D.R.

“…High-resolution size-resolved mass concentration of organic and inorganic species present in/on sub-micron particles measured during the PACIFIC 2001 field…”
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Implementation of a Markov Chain Monte Carlo method to inorganic aerosol modeling of observations from the MCMA-2003 campaign – Part I: Model description and application to the La Merced site by San Martini, F. M., Dunlea, E. J., Grutter, M., Onasch, T. B., Jayne, J. T., Canagaratna, M. R., Worsnop, D. R., Kolb, C. E., Shorter, J. H., Herndon, S. C., Zahniser, M. S., Ortega, J. M., McRae, G. J., Molina, L. T., Molina, M. J.

“…The equilibrium inorganic aerosol model ISORROPIA was embedded in a Markov Chain Monte Carlo algorithm to develop a powerful tool to analyze aerosol data and…”
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Gas-phase diffusion in droplet train measurements of uptake coefficients by Worsnop, D.R, Shi, Q, Jayne, J.T, Kolb, C.E, Swartz, E, Davidovits, P

“…Experiments were conducted to study the nature of gas-phase diffusive transport to a stream of fast moving droplets in a droplet train apparatus used for…”
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