Dr. John Shilling is an atmospheric chemist at Pacific Northwest National Laboratory (PNNL) with expertise in measuring aerosol gas- and particle-phase chemical composition and gas-particle interactions. He came to PNNL in 2008 as a staff scientist and led a project to design and build an aerosol measurement laboratory and environmental chamber in PNNL's Atmospheric Measurement Laboratory. Dr. Shilling is an expert in aerosol gas and particle measurements and in applying mass spectrometry to problems in atmospheric chemistry. Currently, he is conducting laboratory experiments investigating the lifecycle of secondary organic aerosol particles and their climate-relevant properties under the Department of Energy (DOE)'s Atmospheric System Research program. A virtual tour of the chamber laboratory and and overview of this work can be found here.

In addition to laboratory studies, Dr. Shilling brings his mass spectrometry expertise to field missions. He served as the principal investigator for both gas- and particle-phase mass spectrometers deployed onboard DOE's G-1 research aircraft during several field campaigns including, CARES, TCAP, BBOP, GoAmazon 2014/5, HISCALE, and ACE-ENA.

Since 2015, Dr. Shilling has been the lead for the carbonaceous aerosol research element of the Integrated Cloud, Land-surface, and Aerosol System Study project. He has served as the aerosol translator for DOE's Atmospheric Raditaion Measurement program since 2019. In this role, he produces advanced data products from Atmospheric Raditaion Measurement program observational data. He was the lead for the Aerosol System Science Theme at EMSL, the Environmental Molecular Sciences Laboratory, a DOE Office of Science user facility at PNNL, from 2015-2018.

Research Interest

  • Secondary organic aerosol
  • Mass spectrometry
  • Particle growth mechanisms
  • Heterogeneous kinetics and chemistry
  • Phase transitions


  • Postdoctoral Fellowship, School of Engineering and Applied Sciences, Harvard University
  • PhD in Analytical/Atmospheric Chemistry, University of Colorado
  • BS in Chemistry (with honors) Ursinus College

Affiliations and Professional Service

  • Member, American Association of Aerosol Research
  • Member, American Geophysical Union

Awards and Recognitions

  • Atmospheric Chemistry Colloquium for Emerging Senior Scientists (ACCESS)
  • National Aeronautics and Space Administration Earth System Science Fellow
  • American Chemical Society Award for Undergraduate Achievement
  • American Chemical Society Undergraduate Award in Analytical Chemistry
  • Member, the Phi Beta Kappa society



  • Fung K., C.L. Heald, J.H. Kroll, S. Wang, D.S. Jo, A. Gettelman, and Z. Lu, et al. 2022. "Exploring dimethyl sulfide (DMS) oxidation and implications for global aerosol radiative forcing." Atmospheric Chemistry and Physics 22, no. 2:1549-1573. PNNL-SA-166358. doi:10.5194/acp-22-1549-2022
  • Zaveri R.A., J. Wang, J. Fan, Y. Zhang, J.E. Shilling, A. Zelenyuk-Imre, and F. Mei, et al. 2022. "Rapid growth of anthropogenic organic nanoparticles greatly alters cloud life cycle in the Amazon rainforest." Science Advances 8, no. 2:Art. No. eabj0329. PNNL-SA-155974. doi:10.1126/sciadv.abj0329


  • Bian H., E. Lee, R. Koster, D. Barahona, M. Chin, P. Colarco, and A.S. Darmenov, et al. 2021. "The Response of the Amazon Ecosystem to the Photosynthetically Active Radiation Fields: Integrating Impacts of Biomass Burning Aerosol and Clouds in the NASA GEOS ESM." Atmospheric Chemistry and Physics 21, no. 18:14177-14197. PNNL-SA-161342. doi:10.5194/acp-2021-138
  • Jo D.S., A. Hodzic, L.K. Emmons, S. Tilmes, R.H. Schwantes, M.J. Mills, and P. Campuzano-Jost, et al. 2021. "Future changes in isoprene-epoxydiol-derived secondary organic aerosol (IEPOX-SOA) under the shared socioeconomic pathways: the importance of physico-chemical dependency." Atmospheric Chemistry and Physics 21, no. 5:3395-3425. PNNL-SA-156532. doi:10.5194/acp-21-3395-2021
  • Liu J., L. Alexander, J.D. Fast, R. Lindenmaier, and J.E. Shilling. 2021. "Aerosol characteristics at the Southern Great Plains site during the HI-SCALE campaign." Atmospheric Chemistry and Physics 21, no. 6:5101-5116. PNNL-SA-159723. doi:10.5194/acp-21-5101-2021
  • Wang Y., G. Zheng, M. Jensen, D. Knopf, A. Laskin, A.A. Matthews, and D.B. Mechem, et al. 2021. "Vertical profiles of trace gas and aerosol properties over the Eastern North Atlantic: Variations with season and synoptic condition." Atmospheric Chemistry and Physics 21, no. 14:11079-11098. PNNL-SA-161330. doi:10.5194/acp-21-11079-2021
  • Zawadowicz M.A., K.J. Suski, J. Liu, M.S. Pekour, J.D. Fast, F. Mei, and A.J. Sedlacek, et al. 2021. "Aircraft measurements of aerosol and trace gas chemistry in the eastern North Atlantic." Atmospheric Chemistry and Physics 21, no. 10:7983-8002. PNNL-SA-155854. doi:10.5194/acp-21-7983-2021
  • Zhao B., J.D. Fast, N.M. Donahue, M.B. Shrivastava, M. Schervish, J.E. Shilling, and H. Gordon, et al. 2021. "Impact of Urban Pollution on Organic-Mediated New-Particle Formation and Particle Number Concentration in the Amazon Rainforest." Environmental Science & Technology 55, no. 8:4357-4367. PNNL-SA-159901. doi:10.1021/acs.est.0c07465
  • Zheng G., Y. Wang, R. Wood, M. Jensen, C. Kuang, I.L. McCoy, and A.A. Matthews, et al. 2021. "New particle formation in the remote marine boundary layer." Nature Communications 12, no. 1:Article No. 527. PNNL-SA-156551. doi:10.1038/s41467-020-20773-1


  • Kleinman L.I., A.J. Sedlacek, K. Adachi, P.R. Buseck, S. Collier, M.K. Dubey, and A.L. Hodshire, et al. 2020. "Rapid Evolution of Aerosol Particles and their Optical Properties Downwind of Wildfires in the Western U.S." Atmospheric Chemistry and Physics 20, no. 21:13319-13341. PNNL-SA-152046. doi:10.5194/acp-20-13319-2020
  • Li Z., E. D'Ambro, S. Schobesberger, C.J. Gaston, F.D. Lopez-Hilfiker, J. Liu, and J.E. Shilling, et al. 2020. "A robust clustering algorithm for analysis of composition-dependent organic aerosol thermal desorption measurements." Atmospheric Chemistry and Physics 20, no. 4:2489-2512. PNNL-SA-146360. doi:10.5194/acp-20-2489-2020
  • Lou S., M.B. Shrivastava, R.C. Easter, Y. Yang, P. Ma, H. Wang, and M.J. Cubison, et al. 2020. "New SOA treatments within the Energy Exascale Earth System Model (E3SM): Strong production and sinks govern atmospheric SOA distributions and radiative forcing." Journal of Advances in Modeling Earth Systems 12, no. 12:e2020MS002266. PNNL-SA-156400. doi:10.1029/2020MS002266
  • Mather J.H., S.M. Burrows, D. Chand, N.J. Hess, A. Laskin, A.C. Mccomiskey, and N. Sharma, et al. 2020. "An Atmospheric Aerosol Short Course for Early Career Scientists." Bulletin of the American Meteorological Society 101, no. 9:E1562-E1567. PNNL-SA-149235. doi:10.1175/BAMS-D-19-0326.1
  • Mei F., J. Wang, J.M. Comstock, R. Weigel, M. Kramer, C. Mahnke, and J.E. Shilling, et al. 2020. "Comparison of aircraft measurements during GoAmazon2014/5 and ACRIDICON-CHUVA." Atmospheric Measurement Techniques 13, no. 2:661-684. PNNL-SA-151169. doi:10.5194/amt-13-661-2020
  • Mouchel-Vallon C., J. Lee-Taylor, A. Hodzic, P. Artaxo, B. Aumont, M. Camredon, and D. Gurarie, et al. 2020. "Exploration of Oxidative Chemistry and Secondary Organic Aerosol Formation in the Amazon during the Wet Season: Explicit Modeling of the Manaus Urban Plume with GECKO-A." Atmospheric Chemistry and Physics 20, no. 10:5995-6014. PNNL-SA-148940. doi:10.5194/acp-20-5995-2020
  • Pai S.J., C.L. Heald, J. Pierce, S.C. Farina, E.A. Marais, J.L. Jimenez, and P. Campuzano-Jost, et al. 2020. "An evaluation of global organic aerosol schemes using airborne observations." Atmospheric Chemistry and Physics 20, no. 5:2637-2665. PNNL-SA-142682. doi:10.5194/acp-20-2637-2020
  • Thornton J.A., J.E. Shilling, M.B. Shrivastava, E. D'Ambro, M.A. Zawadowicz, and J. Liu. 2020. "A near-explicit mechanistic evaluation of Isoprene photochemical secondary organic aerosol formation and evolution: simulations of multiple chamber experiments with and without added NOx." ACS Earth and Space Chemistry 4, no. 7:1161-1181. PNNL-SA-153144. doi:10.1021/acsearthspacechem.0c00118
  • Zaveri R.A., J.E. Shilling, A. Zelenyuk-Imre, M.A. Zawadowicz, K.J. Suski, S. China, and D.M. Bell, et al. 2020. "Particle-phase diffusion modulates partitioning of semivolatile organic compounds to aged secondary organic aerosol." Environmental Science & Technology 54, no. 5:2595-2605. PNNL-SA-147224. doi:10.1021/acs.est.9b05514
  • Zaveri R.A., J.E. Shilling, J.D. Fast, and S.R. Springston. 2020. "Efficient Nighttime Biogenic SOA Formation in a Polluted Residual Layer." Journal of Geophysical Research: Atmospheres 125, no. 6:Article No. e2019JD031583. PNNL-SA-146860. doi:10.1029/2019JD031583
  • Zawadowicz M.A., B.H. Lee, M.B. Shrivastava, A. Zelenyuk-Imre, R.A. Zaveri, C.J. Flynn, and J.A. Thornton, et al. 2020. "Photolysis Controls Atmospheric Budgets of Biogenic Secondary Organic Aerosol." Environmental Science & Technology 54, no. 7:3861-3870. PNNL-SA-149227. doi:10.1021/acs.est.9b07051
  • Zhao B., M.B. Shrivastava, N.M. Donahue, H. Gordon, M. Schervish, J.E. Shilling, and R.A. Zaveri, et al. 2020. "High concentration of ultrafine particles in the Amazon free troposphere produced by organic new particle formation." Proceedings of the National Academy of Sciences of the United States of America 117, no. 41:25344-25351. PNNL-SA-155827. doi:10.1073/pnas.2006716117


  • Adachi K., A.J. Sedlacek, L.I. Kleinman, S.R. Springston, J. Wang, D. Chand, and J.M. Hubbe, et al. 2019. "Spherical tarball particles form through rapid chemical and physical changes of organic matter in biomass-burning smoke." Proceedings of the National Academy of Sciences of the United States of America 116, no. 39:19336-19341. PNNL-SA-140926. doi:10.1073/pnas.1900129116
  • Fast J.D., L.K. Berg, L. Alexander, D.M. Bell, E. D'Ambro, J.M. Hubbe, and C. Kuang, et al. 2019. "Overview of the HI-SCALE Field Campaign: A New Perspective on Shallow Convective Clouds." Bulletin of the American Meteorological Society 100, no. 5:821-840. PNNL-SA-133582. doi:10.1175/BAMS-D-18-0030.1
  • Pye H.O., E. D'Ambro, B.H. Lee, S. Schobesberger, M. Takeuchi, Y. Zhao, and F.D. Lopez-Hilfiker, et al. 2019. "Anthropogenic enhancements to production of highly oxygenated molecules from autoxidation." Proceedings of the National Academy of Sciences of the United States of America 116, no. 14:6641-6646. PNNL-SA-133566. doi:10.1073/pnas.1810774116
  • Shilling J.E., M.A. Zawadowicz, J. Liu, R.A. Zaveri, and A. Zelenyuk-Imre. 2019. "Photochemical Aging Alters Secondary Organic Aerosol Partitioning Behavior." ACS Earth and Space Chemistry 3, no. 12:2704-2716. PNNL-SA-147587. doi:10.1021/acsearthspacechem.9b00248
  • Wang J., J.E. Shilling, J. Liu, A. Zelenyuk-Imre, D.M. Bell, M.D. Petters, and R.M. Thalman, et al. 2019. "Cloud droplet activation of secondary organic aerosol is mainly controlled by molecular weight, not by solubility." Atmospheric Chemistry and Physics 19, no. 2:941-954. PNNL-SA-140927. doi:10.5194/acp-19-941-2019
  • Wang J., J.E. Shilling, J. Liu, A. Zelenyuk-Imre, D.M. Bell, M.D. Petters, and R.M. Thalman, et al. 2019. "Cloud droplet activation of secondary organic aerosol is mainly controlled by molecular weight, not water solubility." Atmospheric Chemistry and Physics 19, no. 2:941-954. PNNL-SA-134664. doi:10.5194/acp-19-941-2019


  • de Sa S.S., B.B. Palm, P. Campuzano-Jost, D. Day, W. Hu, G. Isaacman-VanWertz, and L.D. Yee, et al. 2018. "Urban influence on the concentration and composition of submicron particulate matter in central Amazonia." Atmospheric Chemistry and Physics 18, no. 16:12185-12206. PNNL-SA-132381. doi:10.5194/acp-18-12185-2018
  • Kassianov E.I., L.K. Berg, M.S. Pekour, J.C. Barnard, D. Chand, J.M. Comstock, and C.M. Flynn, et al. 2018. "A Closure Study of Total Scattering Using Airborne In Situ Measurements from the Winter Phase of TCAP." Atmosphere 9, no. 6:228. PNNL-SA-136397. doi:10.3390/atmos9060228
  • Shilling J.E., M.S. Pekour, E. Fortner, P. Artaxo, S. de Sa, J.M. Hubbe, and K. Longo, et al. 2018. "Aircraft Observations of the Chemical Composition and Aging of Aerosol in the Manaus Urban Plume during GoAmazon 2014/5." Atmospheric Chemistry and Physics 18, no. 14:10773-10797. PNNL-SA-132487. doi:10.5194/acp-18-10773-2018
  • Xing L., M.B. Shrivastava, T. Fu, P. Roldin, Y. Qian, L. Xu, and N.L. Ng, et al. 2018. "Parameterized yields of semivolatile products from isoprene oxidation under different NOx levels: impacts of chemical aging and wall-loss of reactive gases." Environmental Science & Technology 52, no. 16:9225-9234. PNNL-SA-131795. doi:10.1021/acs.est.8b00373
  • Zaveri R.A., J.E. Shilling, A. Zelenyuk-Imre, J. Liu, D.M. Bell, E. D'Ambro, and C. Gaston, et al. 2018. "Growth kinetics and size distribution dynamics of viscous secondary organic aerosol." Environmental Science & Technology 52, no. 3:1191-1199. PNNL-SA-128966. doi:10.1021/acs.est.7b04623


  • D'Ambro E., B.H. Lee, J. Liu, J.E. Shilling, C.J. Gaston, F.D. Lopez-Hilfiker, and S. Schobesberger, et al. 2017. "Molecular composition and volatility of isoprene photochemical oxidation secondary organic aerosol under low and high NOx conditions." Atmospheric Chemistry and Physics 17, no. 1:159-174. PNNL-SA-119934. doi:10.5194/acp-17-159-2017
  • D'Ambro E., K.H. Moller, F.D. Lopez-Hilfiker, S. Schobesberger, J. Liu, J.E. Shilling, and B.H. Lee, et al. 2017. "Isomerization of second generation isoprene peroxy radicals: epoxide formation and implications for secondary organic aerosol yields." Environmental Science & Technology 51, no. 9:4978-4987. PNNL-SA-123725. doi:10.1021/acs.est.7b00460
  • de Sa S., B.B. Palm, P. Campuzano-Jost, D. Day, M.K. Newburn, W. Hu, and G. Isaacman-VanWertz, et al. 2017. "Influence of urban pollution on the production of organic particulate matter from isoprene epoxydiols in central Amazonia." Atmospheric Chemistry and Physics 17, no. 11:6611-6629. PNNL-SA-125341. doi:10.5194/acp-17-6611-2017
  • Gu D., A.B. Guenther, J.E. Shilling, H. Yu, M. Huang, C. Zhao, and Q. Yang, et al. 2017. "Airborne observations reveal elevational gradient in tropical forest isoprene emissions." Nature Communications 8. PNNL-SA-128460. doi:10.1038/ncomms15541
  • Liu X., L.G. Huey, R.J. Yokelson, V. Selimovic, I. Simpson, M. Muller, and J.L. Jimenez, et al. 2017. "Airborne measurements of western U.S. wildfire emissions: Comparison with prescribed burning and air quality implications." Journal of Geophysical Research: Atmospheres 122, no. 11:6108-6129. PNNL-SA-125343. doi:10.1002/2016JD026315
  • Martin S.T., S.T. Martin, P. Artaxo, L. Machado, A. Manzi, R. Augusto Ferreira de Souza, and C. Schumacher, et al. 2017. "The Green Ocean Amazon Experiement (GoAmazon2014/5) Observes Pollution Affecting Gases, Aerosols, Clouds and Rainfall over the Rain Forest." Bulletin of the American Meteorological Society 98, no. 5:981-980. PNNL-SA-121695. doi:10.1175/BAMS-D-15-00221.1
  • Shrivastava M.B., C. Cappa, J. Fan, A.H. Goldstein, A.B. Guenther, J.L. Jimenez, and C. Kuang, et al. 2017. "Recent advances in understanding secondary organic aerosol: implications for global climate forcing." Reviews of Geophysics 55, no. 2:509-559. PNNL-SA-121416. doi:10.1002/2016RG000540


  • Berg L.K., J.D. Fast, J.C. Barnard, S. Burton, B. Cairns, D. Chand, and J.M. Comstock, et al. 2016. "The Two-Column Aerosol Project: Phase I - Overview and Impact of Elevated Aerosol Layers on Aerosol Optical Depth." Journal of Geophysical Research: Atmospheres 121, no. 1:336-361. PNNL-SA-102905. doi:10.1002/2015JD023848
  • Collier S., S. Zhou, T.B. Onasch, D. Jaffe, L.I. Kleinman, A. Sedlacek, and N. Briggs, et al. 2016. "Regional Influence of Aerosol Emissions from Wildfires Driven by Combustion Efficiency: Insights from the BBOP Campaign." Environmental Science & Technology 50, no. 16:8613-8622. PNNL-SA-117435. doi:10.1021/acs.est.6b01617
  • Fast J.D., L.K. Berg, K. Zhang, R.C. Easter, R.A. Ferrare, J. Hair, and C.A. Hostetler, et al. 2016. "Model Representations of Aerosol Layers Transported from North America over the Atlantic Ocean during the Two-Column Aerosol Project." Journal of Geophysical Research: Atmospheres 121, no. 16:9814-9848. PNNL-SA-119932. doi:10.1002/2016JD025248
  • Kleinman L.I., C. Kuang, A. Sedlacek, G.I. Senum, S.R. Springston, J. Wang, and Q. Zhang, et al. 2016. "What do Correlations tell us about Anthropogenic - Biogenic Interactions and SOA Formation in the Sacramento Plume during CARES?." Atmospheric Chemistry and Physics 16, no. 3:1729-1746. PNNL-SA-110254. doi:10.5194/acp-16-1729-2016
  • Kulkarni G.R., S. China, S. Liu, M.I. Nandasiri, N. Sharma, J.M. Wilson, and A.C. Aiken, et al. 2016. "Ice nucleation activity of diesel soot particles at Cirrus relevant conditions: Effects of hydration, secondary organics coating, hydration, soot morphology, and coagulation." Geophysical Research Letters 43, no. 7:3580-3588. PNNL-SA-113363. doi:10.1002/2016GL068707
  • Liu J., E. D'Ambro, B.H. Lee, F.D. Lopez-Hilfiker, R.A. Zaveri, J. Rivera-Rios, and F.N. Keutsch, et al. 2016. "Efficient isoprene secondary organic aerosol formation from a non-IEPOX pathway." Environmental Science & Technology 50, no. 18:9872-9880. PNNL-SA-117433. doi:10.1021/acs.est.6b01872
  • Liu J., P. Lin, A. Laskin, J. Laskin, S.M. Kathmann, M.E. Wise, and R. Caylor, et al. 2016. "Optical Properties and Aging of Light Absorbing Secondary Organic Aerosol." Atmospheric Chemistry and Physics 16, no. 19:12815-12827. PNNL-SA-118548. doi:10.5194/acp-16-12815-2016
  • Zhao C., M. Huang, J.D. Fast, L.K. Berg, Y. Qian, A. Guenther, and D. Gu, et al. 2016. "Sensitivity of biogenic volatile organic compounds to land surface parameterizations and vegetation distributions in California." Geoscientific Model Development 9, no. 5:1959-1976. PNNL-SA-114880. doi:10.5194/gmd-9-1959-2016


  • China S., G.R. Kulkarni, B. Scarnatio, N. Sharma, M.S. Pekour, J.E. Shilling, and J.M. Wilson, et al. 2015. "Morphology Of Diesel Soot Residuals From Supercooled Water Droplets And Ice Crystals: Implications For Optical Properties." Environmental Research Letters 10. PNNL-SA-112661. doi:10.1088/1748-9326/10/11/114010
  • Kassianov E.I., L.K. Berg, M.S. Pekour, C.J. Flynn, J.M. Tomlinson, D. Chand, and J.E. Shilling, et al. 2015. "Airborne Aerosol In situ Measurements during TCAP: A Closure Study of Total Scattering." Atmosphere 6, no. 8:1069-1101. PNNL-SA-110601. doi:10.3390/atmos6081069
  • Lin P., J. Liu, J.E. Shilling, S.M. Kathmann, J. Laskin, and A. Laskin. 2015. "Molecular Characterization of Brown Carbon (BrC) Chromophores in Secondary Organic Aerosol Generated From Photo-Oxidation of Toluene." Physical Chemistry Chemical Physics. PCCP 17, no. 36:23312-23325. PNNL-SA-110255. doi:10.1039/c5cp02563j
  • Wang B., R.E. O'Brien, S.T. Kelly, J.E. Shilling, R.C. Moffet, M.K. Gilles, and A. Laskin. 2015. "Reactivity of Liquid and Semisolid Secondary Organic Carbon with Chloride and Nitrate in Atmospheric Aerosols." Journal of Physical Chemistry A 119, no. 19:4498-4508. PNNL-SA-104103. doi:10.1021/jp510336q


  • Fast J.D., J.D. Allan, R. Bahreini, J.S. Craven, L. Emmons, R.A. Ferrare, and P.L. Hayes, et al. 2014. "Modeling regional aerosol and aerosol precursor variability over California and its sensitivity to emissions and long-range transport during the 2010 CalNex and CARES campaigns." Atmospheric Chemistry and Physics 14, no. 18:10013-10060. PNWD-SA-10309. doi:10.5194/acp-14-10013-2014
  • Kassianov E.I., J.C. Barnard, M.S. Pekour, L.K. Berg, J.E. Shilling, C.J. Flynn, and F. Mei, et al. 2014. "Simultaneous Retrieval of Effective Refractive Index and Density from Size Distribution and Light Scattering Data: Weakly-Absorbing Aerosol." Atmospheric Measurement Techniques 7. PNNL-SA-101838. doi:10.5194/amt-7-3247-2014
  • Setyan A., C. Song, M. Merkel, M. Knighton, T.B. Onasch, M.R. Canagaratna, and D.R. Worsnop, et al. 2014. "Chemistry of new particle growth in mixed urban and biogenic emissions - insights from CARES." Atmospheric Chemistry and Physics 14, no. 13:6477-6494. PNNL-SA-105602. doi:10.5194/acp-14-6477-2014
  • Xu L., M.S. Kollman, C. Song, J.E. Shilling, and L.N. Ng. 2014. "Effects of NOx on the volatility of secondary organic aerosol from isoprene photooxidation." Environmental Science & Technology 48, no. 4:2253-2262. PNNL-SA-99633. doi:10.1021/es404842g
  • Zaveri R.A., R.C. Easter, J.E. Shilling, and J.H. Seinfeld. 2014. "Modeling kinetic partitioning of secondary organic aerosol and size distribution dynamics: representing effects of volatility, phase state, and particle-phase reaction." Atmospheric Chemistry and Physics 14, no. 10:5153-5181. PNNL-SA-97694. doi:10.5194/acp-14-5153-2014


  • Renbaum-Wolff L., J.W. Grayson, A.P. Bateman, M. Kuwata, M. Sellier, B.J. Murray, and J.E. Shilling, et al. 2013. "Viscosity of a-pinene secondary organic material and implications for particle growth and reactivity." Proceedings of the National Academy of Sciences of the United States of America 110, no. 20:8014-8019. PNNL-SA-92101. doi:10.1073/pnas.1219548110
  • Shakya K.M., S. Liu, S. Takahama, L.M. Russell, F.N. Keutsch, M.M. Galloway, and J.E. Shilling, et al. 2013. "Similarities in STXM-NEXAFS Spectra of Atmospheric Particles and Secondary Organic Aerosol Generated from Glyoxal, a-Pinene, Isoprene, 1,2,4-Trimethylbenzene, and d-Limonene." Aerosol Science and Technology 47, no. 5:543-555. PNNL-SA-90606. doi:10.1080/02786826.2013.772950
  • Shilling J.E., R.A. Zaveri, J.D. Fast, L.I. Kleinman, M.L. Alexander, M.R. Canagaratna, and E. Fortner, et al. 2013. "Enhanced SOA formation from mixed anthropogenic and biogenic emissions during the CARES campaign." Atmospheric Chemistry and Physics 13, no. 4:2091-2113. PNNL-SA-91032. doi:10.5194/acp-13-2091-2013
  • Song C., M.S. Gyawali, R.A. Zaveri, J.E. Shilling, and W. Arnott. 2013. "Light Absorption by Secondary Organic Aerosol from a-Pinene: Effects of Oxidants, Seed Aerosol Acidity, and Relative Humidity." Journal of Geophysical Research: Atmospheres 118, no. 20:11,741-11,749. PNNL-SA-94029. doi:10.1002/jgrd.50767
  • Wang B., S.T. Kelly, R.E. Sellon, J.E. Shilling, A.V. Tivanski, R.C. Moffet, and M.K. Gilles, et al. 2013. "Field and Laboratory Studies of Reactions between Atmospheric Water Soluble Organic Acids and Inorganic Particles." In Nucleation and Atmospheric Aerosols: 19th International Conference, June 23-28, 2013, Fort Collins, CO. AIP Conference Proceedings, 1527, 465-467. Fort Collins, Colorado:AIP Publishing. PNNL-SA-97142. doi:10.1063/1.4803305


  • Liu S., J.E. Shilling, C. Song, N. Hiranuma, R.A. Zaveri, and L.M. Russell. 2012. "Hydrolysis of organonitrate functional groups in aerosol particles." Aerosol Science and Technology 46, no. 12:1359-1369. PNNL-SA-87795. doi:10.1080/02786826.2012.716175
  • Setyan A., Q. Zhang, M. Merkel, W.B. Knighton, Y. Sun, C. Song, and J.E. Shilling, et al. 2012. "Characterization of submicron particles influenced by mixed biogenic and anthropogenic emissions using high-resolution aerosol mass spectrometry: results from CARES." Atmospheric Chemistry and Physics 12, no. 17:8131-8156. PNNL-SA-86147. doi:10.5194/acp-12-8131-2012
  • You Y., L. Renbaum-Wolff, M. Carreras-Sospedra, S. Hanna, N. Hiranuma, S. Kamal, and M.L. Smith, et al. 2012. "Images reveal that atmospheric particles can undergo liquid-liquid phase separations." Proceedings of the National Academy of Sciences of the United States of America 109, no. 33:13188-13193. PNNL-SA-85901. doi:10.1073/pnas.1206414109
  • Zaveri R.A., W.J. Shaw, D.J. Cziczo, B. Schmid, R. Ferrare, M.L. Alexander, and M. Alexandrov, et al. 2012. "Overview of the 2010 Carbonaceous Aerosols and Radiative Effects Study (CARES)." Atmospheric Chemistry and Physics 12, no. 16:7647-7687. PNNL-SA-84648. doi:10.5194/acp-12-7647-2012


  • Chen Q., Y. Liu, N.M. Donahue, J.E. Shilling, S.T. Martin, and S.T. Martin. 2011. "Particle-Phase Chemistry of Secondary Organic Material: Modeled Compared to Measured O:C and H:C Elemental Ratios Provide Constraints." Environmental Science & Technology 45, no. 11:4763-4770. PNNL-SA-76799. doi:10.1021/es104398s
  • Hiranuma N., M. Kohn, M.S. Pekour, D.A. Nelson, J.E. Shilling, and D.J. Cziczo. 2011. "Droplet activation, separation, and compositional analysis: Laboratory studies and atmospheric measurements." Atmospheric Measurement Techniques 4, no. 1:691-713. PNNL-SA-76684. doi:10.5194/amtd-4-691-2011
  • Song C., R.A. Zaveri, J.E. Shilling, M.L. Alexander, and M.K. Newburn. 2011. "Effect of Hydrophilic Organic Seed Aerosols on Secondary Organic Aerosol Formation from Ozonolysis of a-Pinene." Environmental Science & Technology 45, no. 17:7323-7329. PNNL-SA-78982. doi:10.1021/es201225c


  • King S.M., T. Rosenoern, J.E. Shilling, Q. Chen, Z. Wang, G. Biskos, and K.A. McKinney, et al. 2010. "Cloud droplet activation of mixed organic-sulfate particles produced by the photooxidation of isoprene." Atmospheric Chemistry and Physics 10, no. 8:3953-3964. PNNL-SA-68716. doi:10.5194/acpd-10-213-2010


  • King S.M., T. Rosenoern, J.E. Shilling, Q. Chen, S.T. Martin, and S.T. Martin. 2009. "Increased Cloud Activation Potential of Secondary Organic Aerosol for Atmospheric Mass Loadings." Atmospheric Chemistry and Physics 9, no. 9:2959-2971. PNNL-SA-63763.
  • Shilling J.E., Q. Chen, S.M. King, T. Rosenoern, J.H. Kroll, D.R. Worsnop, and P. DeCarlo, et al. 2009. "Loading-Dependent Elemental Composition of a-Pinene SOA Particles." Atmospheric Chemistry and Physics 9, no. 3:771-782. PNNL-SA-63762.