Cooperative Institute for Research in Environmental Sciences

Paul Ziemann

Paul Ziemann

Research Interests

The primary focus of our group's research is to elucidate mechanisms by which volatile organic compounds emitted from biogenic and anthropogenic sources react in the atmosphere to form products that can create submicron-size organic aerosol particles. These reactions are complex and include photochemistry, gas-phase oxidation, and heterogeneous/multiphase reactions. The resulting particles affect global climate, visibility, and human health. We conduct experiments in large-volume environmental chambers under simulated atmospheric conditions and then identify and quantify organic gas and aerosol reaction products using a variety of analytical instruments and methods. This information is used to develop detailed, quantitative chemical reaction mechanisms for predicting organic aerosol formation, which can be used to improve air quality and global climate models.

Current Research

In the past year our research has focused on analyzing the products of atmospheric oxidation reactions conducted in environmental chambers where we can simulate the chemistry of the atmosphere. We have developed new analytical methods for identifying and quantifying organic compounds in air and particles and applied these to studies of reactions of atmospheric oxidants (OH and NO3 radicals and O3) with volatile organic compounds emitted from vehicles and vegetation, including wildfires. Information was obtained on the identity and amounts of individual reaction products and their gas-phase formation mechanisms, acid-catalyzed heterogeneous/multiphase reaction kinetics, gas-wall partitioning of organic compounds in Teflon environmental chambers, and measured and modeled aerosol yields. This information has allowed us to better understand the effects of molecular structure on the atmospheric chemistry of organic compounds, and has been used to develop reaction mechanisms that are being shared with other researchers to improve computational models for predicting the chemistry of these compounds in the atmosphere. We have also recently conducted a study (with Prof. Jimenez and Dr. de Gouw) of the chemistry of indoor air at the CU-Boulder Art Museum in order to identify possible sources of chemicals that can contaminate objects on display or in storage, and have been collaborating with research groups at Colorado State University and North Carolina State University to investigate the ability of organic particles to absorb water or to form ice, a key process in the formation of clouds. The results of these studies improve our understanding of atmospheric chemistry and aid in the development of air quality models for predicting the fate of organic chemicals, their role in particle formation, and the impact of human activities on the atmospheric environment.

 

Organic aerosol particles under scrutiny in Paul Ziemann's laboratory play important roles in urban and regional smog formation processes and can affect human health and visibility as well as global climate. Photo credit: David Oonk/CIRES


Honors and Awards

  • 2001 Kenneth T. Whitby Award, American Association for Aerosol Research

View Publications

  • Liu, S, SL Thompson, H Stark, PJ Ziemann and JL Jimenez (2017), Gas-Phase Carboxylic Acids in a University Classroom: Abundance, Variability, and Sources. Environ. Sci. Technol. Version: 1 51 (10) 5454-5463, issn: 0013-936X, ids: EV3QO, doi: 10.1021/acs.est.7b01358, PubMed ID: 28420232
  • Ranney, AP and PJ Ziemann (2017), Identification and quantification of oxidized organic aerosol compounds using derivatization, liquid chromatography, and chemical ionization mass spectrometry. Aerosol Sci. Technol. Version: 1 51 (3) 342-353, issn: 0278-6826, ids: EL5LG, doi: 10.1080/02786826.2016.1271108
  • Burkholder, JB, JPD Abbate, I Barnes, JM Roberts, ML Melamed, M Ammann, AK Bertram, CD Cappa, AG Carlton, LJ Carpenter, JN Crowley, Y Dubowski, C Georges, DE Heard, H Herrmann, FN Keutsch, JH Kroll, VF McNeill, NL Ng, SA Nizkorodov, JJ Orlando, CJ Percival, B Picquet-Varrault, Y Rudich, PW Seakins, JD Surratt, H Tanimoto, JA Thornton, Z Tong, GS Tyndall, A Wahner, CJ Weschler, KR Wilson and PJ Ziemann (2017), The Essential Role for Laboratory Studies in Atmospheric Chemistry. Environ. Sci. Technol. Version: 1 51 (5) 2519-2528, issn: 0013-936X, ids: EN4FQ, doi: 10.1021/acs.est.6b04947, PubMed ID: 28169528
  • Algrim, LB and PJ Ziemann (2016), Effect of the Keto Group on Yields and Composition of Organic Aerosol Formed from OH Radical-Initiated Reactions of Ketones in the Presence of NOx. J. Phys. Chem. A Version: 1 120 (35) 6978-6989, issn: 1089-5639, ids: DV5XV, doi: 10.1021/acs.jpca.6b05839, PubMed ID: 27508315
  • Strollo, CM and PJ Ziemann (2016), Investigation of the formation of benzoyl peroxide, benzoic anhydride, and other potential aerosol products from gas-phase reactions of benzoylperoxy radicals. Atmos. Environ. Version: 1 130 202-210, issn: 1352-2310, ids: DG9CU, doi: 10.1016/j.atmosenv.2016.01.011
  • Krechmer, JE, D Pagonis, PJ Ziemann and JL Jimenez (2016), Quantification of Gas-Wall Partitioning in Teflon Environmental Chambers Using Rapid Bursts of Low-Volatility Oxidized Species Generated in Situ. Environ. Sci. Technol. Version: 1 50 (11) 5757-5765, issn: 0013-936X, ids: DO2SI, doi: 10.1021/acs.est.6b00606, PubMed ID: 27138683
  • Ranney, AP and PJ Ziemann (2016), Microscale spectrophotometric methods for quantification of functional groups in oxidized organic aerosol. Aerosol Sci. Technol. Version: 1 50 (9) 881-892, issn: 0278-6826, ids: DU4OI, doi: 10.1080/02786826.2016.1201197
  • La, YS, M Camredon, PJ Ziemann, R Valorso, A Matsunaga, V Lannuque, J Lee-Taylor, A Hodzic, S Madronich and B Aumont (2016), Impact of chamber wall loss of gaseous organic compounds on secondary organic aerosol formation: explicit modeling of SOA formation from alkane and alkene oxidation. Atmos. Chem. Phys. Version: 1 16 (3) 1417-1431, issn: 1680-7316, ids: DF3YI, doi: 10.5194/acp-16-1417-2016
  • Ranney, AP and PJ Ziemann (2016), Kinetics of Acid-Catalyzed Dehydration of Cyclic Hemiacetals in Organic Aerosol Particles in Equilibrium with Nitric Acid Vapor. J. Phys. Chem. A Version: 1 120 (16) 2561-2568, issn: 1089-5639, ids: DL3GF, doi: 10.1021/acs.jpca.6b01402, PubMed ID: 27043733
  • Petters, MD, SM Kreidenweis and PJ Ziemann (2016), Prediction of cloud condensation nuclei activity for organic compounds using functional group contribution methods. Geosci. Model Dev. Version: 1 9 (1) 111-124, issn: 1991-959X, ids: DN2ZX, doi: 10.5194/gmd-9-111-2016
  • Liu, S, R Li, RJ Wild, C Warneke, JA de Gouw, SS Brown, SL Miller, JC Luongo, JL Jimenez and PJ Ziemann (2016), Contribution of human-related sources to indoor volatile organic compounds in a university classroom. Indoor Air Version: 1 26 (6) 925-938, issn: 0905-6947, ids: EC0RK, doi: 10.1111/ina.12272, PubMed ID: 26610063
  • Waxman, EM, J Elm, T Kurten, KV Mikkelsen, PJ Ziemann and R Vokamer (2015), Glyoxal and Methylglyoxal Setschenow Salting Constants in Sulfate, Nitrate, and Chloride Solutions: Measurements and Gibbs Energies. Environ. Sci. Technol. Version: 1 49 (19) 11500-11508, issn: 0013-936X, ids: CT2JZ, doi: 10.1021/acs.est.5b02782, PubMed ID: 26335375
  • Yeh, GK, MS Claflin and PJ Ziemann (2015), Products and Mechanism of the Reaction of 1-Pentadecene with NO3 Radicals and the Effect of a -ONO2 Group on Alkoxy Radical Decomposition. J. Phys. Chem. A Version: 1 119 (43) 10684-10696, issn: 1089-5639, ids: CV1DZ, doi: 10.1021/acs.jpca.5b07468, PubMed ID: 26436557
  • Yeh, Geoffrey K., Ziemann, Paul J. (2015), Gas-Wall Partitioning of Oxygenated Organic Compounds: Measurements, StructureActivity Relationships, and Correlation with Gas Chromatographic Retention Factor. Aerosol Sci. Technol. Version: 1 49 (9) , issn: 02786826, doi: 10.1080/02786826.2015.1068427
  • Ziemann, Paul J. (2015), Atmospheric Chemistry: Nature's plasticized aerosols. Nature Geosci. Version: 1 9 (1) , issn: 17520894, doi: 10.1038/NGEO2610
  • Bilde, M, K Barsanti, M Booth, CD Cappa, NM Donahue, EU Emanuelsson, G McFiggans, UK Krieger, C Marcolli, D Tropping, P Ziemann, M Barley, S Clegg, B Dennis-Smither, M Hallquist, AM Hallquist, A Khlystov, M Kulmala, D Mogensen, CJ Percival, F Pope, JP Reid, MAVR da Silva, T Rosenoern, K Salo, VP Soonsin, T Yli-Juuti, NL Prisle, J Pagels, J Rarey, AA Zardini and I Riipinen (2015), Saturation Vapor Pressures and Transition Enthalpies of Low-Volatility Organic Molecules of Atmospheric Relevance: From Dicarboxylic Acids to Complex Mixtures. Chem. Rev. Version: 1 115 (10) 4115-4156, issn: Sep-65, ids: CJ3KZ, doi: 10.1021/cr5005502, PubMed ID: 25929792
  • Strollo, CM and PJ Ziemann (2013), Products and mechanism of secondary organic aerosol formation from the reaction of 3-methylfuran with OH radicals in the presence of NOx. Atmos. Environ. Version: 1 77 534-543, issn: 1352-2310, ids: 223YN, doi: 10.1016/j.atmosenv.2013.05.033
  • Aimanant, S and PJ Ziemann (2013), Chemical Mechanisms of Aging of Aerosol Formed from the Reaction of n-Pentadecane with OH Radicals in the Presence of NOx. Aerosol Sci. Technol. Version: 1 47 (9) 979-990, issn: 0278-6826, ids: 222IZ, doi: 10.1080/02786826.2013.804621
  • Shiraiwa, M, LD Yee, KA Schilling, CL Loza, JS Craven, A Zuend, PJ Ziemann and JH Seinfeld (2013), Size distribution dynamics reveal particle-phase chemistry in organic aerosol formation. Proc. Natl. Acad. Sci. U. S. A. Version: 1 110 (29) 11746-11750, issn: 0027-8424, ids: 187AB, doi: 10.1073/pnas.1307501110
  • Aimanant, S and PJ Ziemann (2013), Development of Spectrophotometric Methods for the Analysis of Functional Groups in Oxidized Organic Aerosol. Aerosol Sci. Technol. Version: 1 47 (6) 581-591, issn: 0278-6826, ids: 122BQ, doi: 10.1080/02786826.2013.773579
  • Yee, LD, JS Craven, CL Loza, KA Schilling, NL Ng, MR Canagaratna, PJ Ziemann, RC Flagan and JH Seinfeld (2013), Effect of chemical structure on secondary organic aerosol formation from C-12 alkanes. Atmos. Chem. Phys. Version: 1 13 (21) 11121-11140, issn: 1680-7316, ids: 253PP, doi: 10.5194/acp-13-11121-2013
  • Yee, LD, JS Craven, CL Loza, KA Schilling, NL Ng, MR Canagaratna, PJ Ziemann, RC Flagan and JH Seinfeld (2012), Secondary Organic Aerosol Formation from Low-NOx Photooxidation of Dodecane: Evolution of Multigeneration Gas-Phase Chemistry and Aerosol Composition. J. Phys. Chem. A Version: 1 116 (24) 6211-6230, issn: 1089-5639, ids: 961DM, doi: 10.1021/jp211531h
  • Suda, SR, MD Petters, A Matsunaga, RC Sullivan, PJ Ziemann and SM Kreidenweis (2012), Hygroscopicity frequency distributions of secondary organic aerosols. J. Geophys. Res.-Atmos. Version: 1 117 , Art. No. D04207, issn: 2169-897X, ids: 899DU, doi: 10.1029/2011JD016823
  • Craven, JS, LD Yee, NL Ng, MR Canagaratna, CL Loza, KA Schilling, RLN Yatavelli, JA Thornton, PJ Ziemann, RC Flagan and JH Seinfeld (2012), Analysis of secondary organic aerosol formation and aging using positive matrix factorization of high-resolution aerosol mass spectra: application to the dodecane low-NOx system. Atmos. Chem. Phys. Version: 1 12 (24) 11795-11817, issn: 1680-7316, ids: 058WR, doi: 10.5194/acp-12-11795-2012
  • Docherty, KS, AC Aiken, JA Huffman, IM Ulbrich, PF DeCarlo, D Sueper, DR Worsnop, DC Snyder, RE Peltier, RJ Weber, BD Grover, DJ Eatough, BJ Williams, AH Goldstein, PJ Ziemann and JL Jimenez (2011), The 2005 Study of Organic Aerosols at Riverside (SOAR-1): instrumental intercomparisons and fine particle composition. Atmos. Chem. Phys. Version: 1 11 (23) 12387-12420, issn: 1680-7316, ids: 863AD, doi: 10.5194/acp-11-12387-2011
  • Russell, LM, R Bahadur and PJ Ziemann (2011), Identifying organic aerosol sources by comparing functional group composition in chamber and atmospheric particles. Proc. Natl. Acad. Sci. U. S. A. Version: 1 108 (9) 3516-3521, issn: 0027-8424, ids: 728AD, doi: 10.1073/pnas.1006461108
  • Day, DA, S Liu, LM Russell and PJ Ziemann (2010), Organonitrate group concentrations in submicron particles with high nitrate and organic fractions in coastal southern California. Atmos. Environ. Version: 1 44 (16) 1970-1979, issn: 1352-2310, ids: 599RR, doi: 10.1016/j.atmosenv.2010.02.045
  • Farmer, DK, A Matsunaga, KS Docherty, JD Surratt, JH Seinfeld, PJ Ziemann and JL Jimenez (2010), Response of an aerosol mass spectrometer to organonitrates and organosulfates and implications for atmospheric chemistry. Proc. Natl. Acad. Sci. U. S. A. Version: 1 107 (15) 6670-6675, issn: 0027-8424, ids: 583AC, doi: 10.1073/pnas.0912340107, PubMed ID: 20194777
  • Vicars, WC, JO Sickman and PJ Ziemann (2010), Atmospheric phosphorus deposition at a montane site: Size distribution, effects of wildfire, and ecological implications. Atmos. Environ. Version: 1 44 (24) 2813-2821, issn: 1352-2310, ids: 630MP, doi: 10.1016/j.atmosenv.2010.04.055
  • Matsunaga, A and PJ Ziemann (2010), Yields of beta-hydroxynitrates, dihydroxynitrates, and trihydroxynitrates formed from OH radical-initiated reactions of 2-methyl-1-alkenes. Proc. Natl. Acad. Sci. U. S. A. Version: 1 107 (15) 6664-6669, issn: 0027-8424, ids: 583AC, doi: 10.1073/pnas.0910585107
  • Matsunaga, A and PJ Ziemann (2010), Gas-Wall Partitioning of Organic Compounds in a Teflon Film Chamber and Potential Effects on Reaction Product and Aerosol Yield Measurements. Aerosol Sci. Technol. Version: 1 44 (10) 881-892, issn: 0278-6826, ids: 668WS, doi: 10.1080/02786826.2010.501044
  • Huffman, JA, KS Docherty, AC Aiken, MJ Cubison, IM Ulbrich, PF DeCarlo, D Sueper, JT Jayne, DR Worsnop, PJ Ziemann and JL Jimenez (2009), Chemically-resolved aerosol volatility measurements from two megacity field studies. Atmos. Chem. Phys. Version: 1 9 (18) 7161-7182, issn: 1680-7316, ids: 525ZW
  • Lim, YB and PJ Ziemann (2009), Chemistry of Secondary Organic Aerosol Formation from OH Radical-Initiated Reactions of Linear, Branched, and Cyclic Alkanes in the Presence of NOx. Aerosol Sci. Technol. Version: 1 43 (6) 604-619, issn: 0278-6826, ids: 434JV, doi: 10.1080/02786820902802567
  • Volkamer, R, PJ Ziemann and MJ Molina (2009), Secondary Organic Aerosol Formation from Acetylene (C2H2): seed effect on SOA yields due to organic photochemistry in the aerosol aqueous phase. Atmos. Chem. Phys. Version: 1 9 (6) 1907-1928, issn: 1680-7316, ids: 425GQ
  • Matsunaga, A and PJ Ziemann (2009), Yields of beta-Hydroxynitrates and Dihydroxynitrates in Aerosol Formed from OH Radical-Initiated Reactions of Linear Alkenes in the Presence of NOx. J. Phys. Chem. A Version: 1 113 (3) 599-606, issn: 1089-5639, ids: 395KF, doi: 10.1021/jp807764d
  • Lim, YB and PJ Ziemann (2009), Effects of Molecular Structure on Aerosol Yields from OH Radical-Initiated Reactions of Linear, Branched, and Cyclic Alkanes in the Presence of NOx. Environ. Sci. Technol. Version: 1 43 (7) 2328-2334, issn: 0013-936X, ids: 427DI, doi: 10.1021/es803389s
  • Dzepina, K, RM Volkamer, S Madronich, P Tulet, IM Ulbrich, Q Zhang, CD Cappa, PJ Ziemann and JL Jimenez (2009), Evaluation of recently-proposed secondary organic aerosol models for a case study in Mexico City. Atmos. Chem. Phys. Version: 1 9 (15) 5681-5709, issn: 1680-7316, ids: 482HW
  • Matsunaga, A, KS Docherty, YB Lim and PJ Ziemann (2009), Composition and yields of secondary organic aerosol formed from OH radical-initiated reactions of linear alkenes in the presence of NOx: Modeling and measurements. Atmos. Environ. Version: 1 43 (6) 1349-1357, issn: 1352-2310, ids: 408HR, doi: 10.1016/j.atmosenv.2008.12.004
  • Prenni, AJ, MD Petters, A Faulhaber, CM Carrico, PJ Ziemann, SM Kreidenweis and PJ DeMott (2009), Heterogeneous ice nucleation measurements of secondary organic aerosol generated from ozonolysis of alkenes. Geophys. Res. Lett. Version: 1 36 , Art. No. L06808, issn: 0094-8276, ids: 426AF, doi: 10.1029/2008GL036957
  • Huffman, JA, KS Docherty, C Mohr, MJ Cubison, IM Ulbrich, PJ Ziemann, TB Onasch and JL Jimenez (2009), Chemically-Resolved Volatility Measurements of Organic Aerosol from Different Sources. Environ. Sci. Technol. Version: 1 43 (14) 5351-5357, issn: 0013-936X, ids: 472NE, doi: 10.1021/es803539d, PubMed ID: 19708365
  • Petters, MD, SM Kreidenweis, AJ Prenni, RC Sullivan, CM Carrico, KA Koehler and PJ Ziemann (2009), Role of molecular size in cloud droplet activation. Geophys. Res. Lett. Version: 1 36 , Art. No. L22801, issn: 0094-8276, ids: 522JW, doi: 10.1029/2009GL040131
  • Bin Lim, Y and PJ Ziemann (2009), Kinetics of the heterogeneous conversion of 1,4-hydroxycarbonyls to cyclic hemiacetals and dihydrofurans on organic aerosol particles. Phys. Chem. Chem. Phys. Version: 1 11 (36) 8029-8039, issn: 1463-9076, ids: 491AD, doi: 10.1039/b904333k
  • Faulhaber, AE, BM Thomas, JL Jimenez, JT Jayne, DR Worsnop and PJ Ziemann (2009), Characterization of a thermodenuder-particle beam mass spectrometer system for the study of organic aerosol volatility and composition. Atmos. Meas. Tech. Version: 1 2 (1) 15-31, issn: 1867-1381, ids: 601TA
  • Huffman, JA, PJ Ziemann, JT Jayne, DR Worsnop and JL Jimenez (2008), Development and characterization of a fast-stepping/scanning thermodenuder for chemically-resolved aerosol volatility measurements. Aerosol Sci. Technol. Version: 1 42 (5) 395-407, issn: 0278-6826, ids: 318LF, doi: 10.1080/02786820802104981
  • Aiken, AC, PF Decarlo, JH Kroll, DR Worsnop, JA Huffman, KS Docherty, IM Ulbrich, C Mohr, JR Kimmel, D Sueper, Y Sun, Q Zhang, A Trimborn, M Northway, PJ Ziemann, MR Canagaratna, TB Onasch, MR Alfarra, ASH Prevot, J Dommen, J Duplissy, A Metzger, U Baltensperger and JL Jimenez (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. Version: 1 42 (12) 4478-4485, issn: 0013-936X, ids: 312XL, doi: 10.1021/es703009q, PubMed ID: 18605574
  • Jordan, CE, PJ Ziemann, RJ Griffin, YB Lim, R Atkinson and J Arey (2008), Modeling SOA formation from OH reactions with C-8-C-17 n-alkanes. Atmos. Environ. Version: 1 42 (34) 8015-8026, issn: 1352-2310, ids: 372ZO, doi: 10.1016/j.atmosenv.2008.06.017
  • Prenni, AJ, MD Petters, SM Kreidenweis, PJ DeMott and PJ Ziemann (2007), Cloud droplet activation of secondary organic aerosol. J. Geophys. Res.-Atmos. Version: 1 112 (D10) , Art. No. D10223, issn: 2169-897X, ids: 173AV, doi: 10.1029/2006JD007963
  • Dick, WD, PJ Ziemann and PH McMurry (2007), Multiangle light-scattering measurements of refractive index of submicron atmospheric particles. Aerosol Sci. Technol. Version: 1 41 (5) 549-569, issn: 0278-6826, ids: 164AI, doi: 10.1080/02786820701272012
  • Docherty, KS and PJ Ziemann (2006), Reaction of oleic acid particles with NO3 radicals: Products, mechanism, and implications for radical-initiated organic aerosol oxidation. J. Phys. Chem. A Version: 1 110 (10) 3567-3577, issn: 1089-5639, ids: 022SV, doi: 10.1021/jp0582383
  • Petters, MD, AJ Prenni, SM Kreidenweis, PJ DeMott, A Matsunaga, YB Lim and PJ Ziemann (2006), Chemical aging and the hydrophobic-to-hydrophilic conversion of carbonaceous aerosol. Geophys. Res. Lett. Version: 1 33 (24) , Art. No. L24806, issn: 0094-8276, ids: 120SH, doi: 10.1029/2006GL027249
  • Ziemann, PJ (2005), Aerosol products, mechanisms, and kinetics of heterogeneous reactions of ozone with oleic acid in pure and mixed particles. Faraday Discuss. Version: 1 130 469-490, issn: 1364-5498, ids: 963KV, doi: 10.1039/b417502f
  • Lim, YB and PJ Ziemann (2005), Products and mechanism of secondary organic aerosol formation from reactions of n-alkanes with OH radicals in the presence of NOx. Environ. Sci. Technol. Version: 1 39 (23) 9229-9236, issn: 0013-936X, ids: 989ZK, doi: 10.1021/es051447g
  • Chattopadhyay, S and PJ Ziemann (2005), Vapor pressures of substituted and unsubstituted monocarboxylic and dicarboxylic acids measured using an improved thermal desorption particle beam mass spectrometry method. Aerosol Sci. Technol. Version: 1 39 (11) 1085-1100, issn: 0278-6826, ids: 992SZ, doi: 10.1080/02786820500421547
  • Docherty, KS, W Wu, YB Lim and PJ Ziemann (2005), Contributions of organic peroxides to secondary aerosol formed from reactions of monoterpenes with O-3. Environ. Sci. Technol. Version: 1 39 (11) 4049-4059, issn: 0013-936X, ids: 933VY, doi: 10.1021/es050228s
  • Gong, HM, A Matsunaga and PJ Ziemann (2005), Products and mechanism of secondary organic aerosol formation from reactions of linear alkenes with NO3 radicals. J. Phys. Chem. A Version: 1 109 (19) 4312-4324, issn: 1089-5639, ids: 926PE, doi: 10.1021/jo0580241
  • Docherty, KS, K Kumboonlert, IJ Lee and PJ Ziemann (2004), Gas chromatography of trimethylsilyl derivatives of alpha-methoxyalkyl hydroperoxides formed in alkene-O-3 reactions. J. Chromatogr. A Version: 1 1029 (2-Jan) 205-215, issn: 0021-9673, ids: 775TD, doi: 10.1016/j.chroma.2003.12.014
  • Pui, DYH, RC Flagan, SL Kaufman, AD Maynard, JF de la Mora, SV Hering, JL Jimenez, KA Prather, AS Wexler and PJ Ziemann (2004), Experimental methods and instrumentation. J. Nanopart. Res. Version: 1 Workshop on Emerging Issues in Nanoparticle Aerosol Science and Technology 6 (3-Feb) 314-315, Los Angeles, CA, JUN 27-28, 2003, issn: 1388-0764, ids: 837EF
  • Sakurai, H, HJ Tobias, K Park, D Zarling, KS Docherty, DB Kittelson, PH McMurry and PJ Ziemann (2003), On-line measurements of diesel nanoparticle composition and volatility. Atmos. Environ. Version: 1 37 (10-Sep) 1199-1210, issn: 1352-2310, ids: 659LA, doi: 10.1016/S1352-2310(02)01017-8
  • Sakurai, H, K Park, PH McMurry, DD Zarling, DB Kittelson and PJ Ziemann (2003), Size-dependent mixing characteristics of volatile and nonvolatile components in diesel exhaust aerosols. Environ. Sci. Technol. Version: 1 37 (24) 5487-5495, issn: 0013-936X, ids: 753UB, doi: 10.1021/es034362t
  • Docherty, KS and PJ Ziemann (2003), Effects of stabilized Criegee intermediate and OH radical scavengers on aerosol formation from reactions of beta-pinene with O-3. Aerosol Sci. Technol. Version: 1 37 (11) 877-891, issn: 0278-6826, ids: 706MH, doi: 10.1080/02786820390228364
  • Ziemann, PJ (2003), Formation of alkoxyhydroperoxy aldehydes and cyclic peroxyhemiacetals from reactions of cyclic alkenes with O-3 in the presence of alcohols. J. Phys. Chem. A Version: 1 107 (12) 2048-2060, issn: 1089-5639, ids: 658JH, doi: 10.1021/jp022114y
  • Ziemann, PJ (2002), Evidence for low-volatility diacyl peroxides as a nucleating agent and major component of aerosol formed from reactions of O-3 with cyclohexene and homologous compounds. J. Phys. Chem. A Version: 1 106 (17) 4390-4402, issn: 1089-5639, ids: 547WW, doi: 10.1021/jp012925m
  • Docherty, KS and PJ Ziemann (2001), On-line, inlet-based trimethylsilyl derivatization for gas chromatography of mono- and dicarboxylic acids. J. Chromatogr. A Version: 1 921 (2) 265-275, issn: 0021-9673, ids: 448VT, doi: 10.1016/S0021-9673(01)00864-0
  • Tobias, HJ, DE Beving, PJ Ziemann, H Sakurai, M Zuk, PH McMurry, D Zarling, R Waytulonis and DB Kittelson (2001), Chemical analysis of diesel engine nanoparticles using a nano-DMA/thermal desorption particle beam mass spectrometer. Environ. Sci. Technol. Version: 1 35 (11) 2233-2243, issn: 0013-936X, ids: 438KQ, doi: 10.1021/es0016654
  • Chattopadhyay, S, HJ Tobias and PJ Ziemann (2001), A method for measuring vapor pressures of low-volatility organic aerosol compounds using a thermal desorption particle beam mass spectrometer. Anal. Chem. Version: 1 73 (16) 3797-3803, issn: Mar-00, ids: 463NT, doi: 10.1021/ac010304j
  • Tobias, HJ and PJ Ziemann (2001), Kinetics of the gas-phase reactions of alcohols, aldehydes, carboxylic acids, and water with the C13 stabilized Criegee intermediate formed from ozonolysis of 1-tetradecene. J. Phys. Chem. A Version: 1 105 (25) 6129-6135, issn: 1089-5639, ids: 446VJ, doi: 10.1021/jp004631r
  • Tobias, HJ, KS Docherty, DE Beving and PJ Ziemann (2000), Effect of relative humidity on the chemical composition of secondary organic aerosol formed from reactions of 1-tetradecene and O-3. Environ. Sci. Technol. Version: 1 34 (11) 2116-2125, issn: 0013-936X, ids: 320GX, doi: 10.1021/es991057s
  • Tobias, HJ and PJ Ziemann (2000), Thermal desorption mass spectrometric analysis of organic aerosol formed from reactions of 1-tetradecene and O-3 in the presence of alcohols and carboxylic acids. Environ. Sci. Technol. Version: 1 34 (11) 2105-2115, issn: 0013-936X, ids: 320GX, doi: 10.1021/es9907156
  • Tobias, HJ, PM Kooiman, KS Docherty and PJ Ziemann (2000), Real-time chemical analysis of organic aerosols using a thermal desorption particle beam mass spectrometer. Aerosol Sci. Technol. Version: 1 33 (2-Jan) 170-190, issn: 0278-6826, ids: 330HM, doi: 10.1080/027868200410912
  • Tobias, HJ and PJ Ziemann (1999), Compound identification in organic aerosols using temperature-programmed thermal desorption particle beam mass spectrometry. Anal. Chem. Version: 1 71 (16) 3428-3435, issn: Mar-00, ids: 227HM, doi: 10.1021/ac990056f
  • Dick, WD, PJ Ziemann, PF Huang and PH McMurry (1998), Optical shape fraction measurements of submicrometre laboratory and atmospheric aerosols. Meas. Sci. Technol. Version: 1 9 (2) 183-196, issn: 0957-0233, ids: YW938, doi: 10.1088/0957-0233/9/2/006
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