Press Releases & Stories



J.C. Ditto, T. Joo, J.H. Slade, P.B. Shepson, N.L. Ng, D.R. Gentner (2020) Nontargeted Tandem Mass Spectrometry Analysis Reveals Diversity and Variability in Aerosol Functional Groups across Multiple Sites, Seasons, and Times of Day. Environmental Science & Technology Letters. 10.1021/acs.estlett.9b00702


H. Rogers, J.C. Ditto, D.R. Gentner* (2019) “Evidence for impacts on surface-level air quality in the Northeastern U.S. from long-distance transport of smoke from North American fires during LISTOS 2018,” Atmospheric Chemistry and Physics.

P. Khare, A. Marcotte, R. Sheu, A.N. Walsh, J.C. Ditto, D.R. Gentner (2019) “Advances in offline approaches for trace measurements of complex organic compound mixtures via soft ionization and high-resolution tandem mass spectrometry,” Journal of Chromatography A.

K.M. Skog, F. Xiong, H. Kawashima, E. Doyle, R. Soto, D.R. Gentner (2019) “Compact, Automated, Inexpensive, and Field-deployable Vacuum-Outlet Gas Chromatograph for Trace Concentration Gas-phase Organic Compounds,” Analytical Chemistry, 91 (2), 1318–1327.

J.C. Ditto, T. Joo, P. Khare, R. Sheu, M. Takeuchi, Y. Chen, W. Xu, A.A.T. Bui, Y. Sun, N.L. Ng, D.R. Gentner (2019) “Effects of Molecular-Level Compositional Variability in Organic Aerosol on Phase State and Thermodynamic Mixing Behavior,” Environmental Science and Technology.

J.H. Slade, A.A.T. Bui, J.C. Ditto, A. Bondy, R. Cook, S. Desrochers, R. Harvey, M. Erickson, H. Wallace, J. Flynn, D.R. Gentner, K. Pratt, A. Ault, R.J. Griffin, B. Boor, G. Petrucci, P. Shepson (2019) “Diel Variations in the Phase State of Atmospheric Aerosol in a Mixed Forest.” Environmental Science & Technology.

M. Levy Zamora, F. Xiong, D.R. Gentner, B. Kerkez, J. Kohrman-Glaser, K. Koehler (2018) “Field and Laboratory Evaluations of the low-cost Plantower Particulate Matter Sensor,” Environmental Science & Technology, 53 (2), 838–849.


J.C. Ditto, E.B. Barnes, P. Khare, M. Takeuchi, T. Joo, A.A.T. Bui, J. Lee-Taylor, G. Eris, Y.Y. Chen, B. Aumont, J.L. Jimenez, N. Ng, D.R. Gentner (2018) “An Omnipresent Diversity and Variability in the Chemical Composition of Atmospheric Functionalized Organic Aerosol,” Communications Chemistry.

J.C. Ditto & D.R. Gentner (2018) Invited highlight companion article “Behind the Paper: Atmospheric organic aerosol at the molecular-level” in Nature Research Chemistry Community, available online at

R. Sheu, A. Marcotte, P. Khare, J.C. Ditto, S. Charan, D.R. Gentner (2018) “Advances in offline approaches for chemically speciated measurements of trace gas-phase organic compounds via adsorbent tubes in an integrated sampling-to-analysis system,” Journal of Chromatography A, 1575, 80-90.

UN report “Low-cost sensors for the measurement of atmospheric composition: overview of topic and future applications” (2018) D.R. Gentner contributing author.

Peeyush Khare, Drew R. Gentner, “Considering the future of anthropogenic gas-phase organic compound emissions and the increasing influence of non-combustion sources on urban air quality,” Atmos. Chem. Phys., 18, 5391-5413, 2018.

Brian C McDonald, Joost A de Gouw, Jessica B Gilman, Shantanu H Jathar, Ali Akherati, Christopher D Cappa, Jose L Jimenez, Julia Lee-Taylor, Patrick L Hayes, Stuart A McKeen, Yu Yan Cui, Si-Wan Kim, Drew R Gentner, Gabriel Isaacman-VanWertz, Allen H Goldstein, Robert A Harley, Gregory J Frost, James M Roberts, Thomas B Ryerson, Michael Trainer, “Volatile chemical products emerging as largest petrochemical source of urban organic emissions,” Science, 359(6377), 760-764.


Drew R Gentner, Shantanu H Jathar, Timothy D Gordon, Roya Bahreini, Douglas A Day, Imad El Haddad, Patrick L Hayes, Simone M Pieber, Stephen M Platt, Joost de Gouw, Allen H Goldstein, Robert A Harley, Jose L Jimenez, André SH Prévôt, Allen L Robinson, “Review of urban secondary organic aerosol formation from gasoline and diesel motor vehicle emissions,” Environmental Science and Technology, 51(3), 1074-1093.

Drew R Gentner, Fulizi Xiong, “Tracking pollutant emissions,” Nature Geoscience, 10(12), 883.


W.H. Brune, B.C. Baier, J. Thomas, X. Ren, R.C. Cohen, S.E. Pusede, E.C. Browne, A.H. Goldstein, D.R. Gentner, F.N. Keutsch, J.A. Thornton, S. Harrold, F.D. Lopez-Hilfiker, P.O. Wennberg, “Ozone production chemistry in the presence of urban plumes,” Faraday Discussions, 189, 169-189.

John Liggio, Shao-Meng Li, Katherine Hayden, Youssef M Taha, Craig Stroud, Andrea Darlington, Brian D Drollette, Mark Gordon, Patrick Lee, Peter Liu, Amy Leithead, Samar G Moussa, Danny Wang, Jason O’Brien, Richard L Mittermeier, Jeffrey R Brook, Gang Lu, Ralf M Staebler, Yuemei Han, Travis W Tokarek, Hans D Osthoff, Paul A Makar, Junhua Zhang, Desiree L Plata, Drew R Gentner, “Oil sands operations as a large source of secondary organic aerosols,” Nature, 534(7605), 91-94.


E.C. Wood, W.B. Knighton, E.C. Fortner, S.C. Herndon, T.B. Onasch, D.R. Worsnop, T.R. Dallmann, D.R. Gentner, A.H. Goldstein, R.A. Harley, “Ethylene Glycol Emissions from On-road Vehicles: a Precursor of Urban Secondary Organic Aerosol,” Environmental Science & Technology, in press.

A. Guha, D.R. Gentner, R. Weber, D. Baer, A.H. Goldstein, “Source apportionment of methane and nitrous oxide in California’s San Joaquin Valley at CalNex 2010 via positive matrix factorization,” Atmospheric Chemistry and Physics Discussions, 15, 6077-6124.

K.R. Baker, A.G. Carlton, T.E. Kleindienst, J.H. Offenberg, M.R. Beaver, D. R. Gentner, A. H. Goldstein, J. B. Gilman, J. A. de Gouw, P. L. Hayes, J. L. Jimenez, M. Woody, H.O.T. Pye, J.T. Kelly, M. Jaoui, M. Lewandowski, Y.H. Lin, C.L. Rubitschun, J. D. Surratt, “Gas and aerosol carbon in California: comparison of measurements and model predictions in Pasadena and Bakersfield,” Atmospheric Chemistry and Physics Discussions, 15, 157-198.


D.R. Gentner, T.B. Ford, A. Guha, J. Brioude, W.M. Angevine, J.A. de Gouw, C. Warneke, J.B. Gilman, T.B. Ryerson, J. Peischl, S. Meinardi, D.R. Blake, E. Atlas, W.A. Lonneman, T.E. Kleindienst, M.R. Beaver, J.M. St. Clair, P.O. Wennberg, T.C. VandenBoer, M.Z. Markovic, J.G. Murphy, R.A. Harley, A.H. Goldstein (2014) “Emissions of organic carbon and methane from petroleum and dairy operations in California’s San Joaquin Valley,” Atmospheric Chemistry and Physics, 14, 4955-4978.

D.R. Gentner, E. Ormeno, T.B. Ford, S. Fares, R. Weber, J.H. Park, J.F. Karlik, A.H. Goldstein (2014) “Emissions of Terpenoids, Benzenoids, and Other Biogenic Gas-phase Organic Compounds from Agriculture and their Potential Implications for Air Quality,” Atmospheric Chemistry and Physics, 14, 5393-5413.

S.E. Pusede, D.R. Gentner, P.J. Wooldridge, E.C. Browne, A.W. Rollins, K.-E. Min, A.R. Russell, J. Thomas, L. Zhang, W.H. Brune, S.B. Henry, J.P. DiGangi, F.N. Keutsch, S.A. Harrold, J.A. Thornton,  M.R. Beaver, J.M. St. Clair, P.O. Wennberg, J. Sanders, X. Ren, T.C. VandenBoer, M.Z. Markovic, A. Guha, R. Weber, A.H. Goldstein, R.C. Cohen, (2014) “On the temperature dependence of organic reactivity, nitrogen oxides, ozone production, and the impact of emission controls in San Joaquin Valley California,” Atmospheric Chemistry and Physics, 14, 3373-3395.

D.R. Worton, G. Isaacman, D.R. Gentner, T.R. Dallmann, A.W.H. Chan, C.R. Ruehl, T.W. Kirchstetter, K.R. Wilson, R.A. Harley, A.H. Goldstein (2014) “Lubricating oil dominates primary organic aerosol emissions from motor vehicles” Environmental Science and Technology, 48, 3698–3706.

Knote, C., A. Hodzic, J.-L. Jimenez, R. Volkamer, J. J. Orlando, S. Baidar, J. Brioude, J. Fast, D. R. Gentner, A. H. Goldstein, P. L. Hayes, W. B. Knighton, H. Oetjen, A. Setyan, H. Stark, R. Thalman, G. Tyndall, R. Washenfelder, E. Waxman, Q. Zhang (2014) “Simulation of semi-explicit mechanisms of SOA formation from glyoxal in aerosol in a 3D model,” Atmospheric Chemistry and Physics, 14, 6213-6239.


D.R. Gentner, D.R. Worton, G. Isaacman, L. Davis, T.R. Dallmann, E. Wood, S. Herndon, R.A. Harley, A.H. Goldstein (2013) “Chemical composition of gas-phase organic carbon emissions from motor vehicles and implications for ozone production,” Environmental Science and Technology, 47 (20), 11837–11848.

B.C. McDonald, D.R. Gentner, A.H. Goldstein, and R.A. Harley “Long-term trends in motor vehicle emissions of carbon monoxide and volatile organic compounds, 1990-2010,” Environmental Science and Technology, 47 (17), 10022-10031.

C. Warneke, J.A. de Gouw, J.S. Holloway, J.B. Gilman, W.C. Kuster, M. Graus, E. Atlas, D. Blake, D.R. Gentner, A.H. Goldstein, R.A. Harley, S. Alvarez, B. Rappenglueck, M. Trainer, D.D. Parrish (2012) “Photochemical Aging of Volatile Organic Compounds in the Los Angeles Basin: Weekend Effect,” Journal of Geophysical Research, 118 (10), 5018-5028.

A.W.H. Chan, G. Isaacman, K.R. Wilson, D.R. Worton, C.R. Ruehl, T. Nah, D.R. Gentner, T.R. Dallman, T.W. Kirchstetter, R.A. Harley, J.B. Gilman, J.A. de Gouw, J.H. Offenberg, T.E. Kleindienst, Y.H. Lin, C.L. Rubitschun, J.D. Surratt, A.H. Goldstein (2012) “Detailed Chemical Characterization of Unresolved Complex Mixtures (UCM) in Atmospheric Organics: Insights into Emission Sources and Atmospheric Processing,” Journal of Geophysical Research, 118, 1-14, doi:10.1002/jgrd.50533.

J. Peischl, T.B. Ryerson, K.C. Aikin, A.E. Andrews, E. Atlas, D. Blake, J. Brioude, B.C. Daube, J.A. de Gouw, E. Dlugokencky, G.J. Frost, D.R. Gentner, J.B. Gilman, A.H. Goldstein, R.A. Harley, J.S. Holloway, J. Kofler, W.C. Kuster, P.M. Lang, P.C. Novelli, G.W. Santoni, M. Trainer, S.C. Wofsy, D.D. Parrish (2013) “Quantifying sources of methane and light alkanes in the Los Angeles Basin, California,” Journal of Geophysical Research, 118 (10), 4974-4990.

Y. Zhao, N.M. Kreisberg, D.R. Worton, G. Isaacman, D.R. Gentner, A.W.H. Chan, R. Weber, S. Liu, D.A. Day, L.M. Russell, S.V. Hering, A.H. Goldstein “Sources of organic aerosol investigated using organic compounds as tracers measured during CalNex in Bakersfield” Journal of Geophysical Research, 118, 11388–11398.

A.W. Rollins, K.-E. Min, S. Pusede, P. Wooldridge, D.R. Gentner, A.H. Goldstein , S. Liu, D.A. Day, L.M. Russell, C.L. Rubitschun, J.D. Surratt, and, R.C. Cohen “Gas/Particle partitioning of total alkyl nitrates observed with TD-LIF in Bakersfield” Journal of Geophysical Research,  10.1002/jgrd.50522, 2013.


D.R. Gentner, G. Isaacman, D.R. Worton, A.W.H. Chan, T.R. Dallmann, L. Davis, S. Liu, D.A. Day, L.M. Russell, K.R. Wilson, R. Weber, A. Guha, R.A. Harley, A.H. Goldstein (2012) “Elucidating secondary organic aerosol from diesel and gasoline vehicles through detailed characterization of organic carbon emissionsProceedings of the National Academy, 109 (45) 18318-18323.

A.W. Rollins, E. C. Browne, K.E. Min, S.E. Pusede, P.J. Wooldridge, D.R. Gentner, A.H. Goldstein, S. Liu, D.A. Day, L.M. Russell, R.C. Cohen (2012), “Nighttime growth of particulate organic nitrates: a significant source of atmospheric secondary organic aerosols,” Science, 337, 1210-1212.

D.R. Worton, D.R. Gentner, G. Isaacman, A.H. Goldstein (2012) “Embracing Complexity: Deciphering origins and transformations of atmospheric organics through speciated measurements (Viewpoint),” Environmental Science and Technology, 46 (10) 5265-5266.

J.A. de Gouw, J.B. Gilman, A. Borbon, C. Warneke, W.C. Kuster, P.D. Goldan, J.S. Holloway, J. Peischl, T.B. Ryerson, D.D. Parrish, D.R. Gentner, A.H. Goldstein, R.A. Harley (2012) “Increasing Atmospheric Burden of Ethanol in the United States,” Geophysical Research Letters, doi:10.1029/2012GL052109, 39, L15803.

S. Fares, J.H. Park, D.R. Gentner, R. Weber, E. Ormeño, J. Karlik, A.H. Goldstein (2012) “Seasonal Cycle of Biogenic Volatile Organic Compound Fluxes and Concentrations in a California Citrus Orchard,” Atmospheric Chemistry & Physics, 12, 9865-9880.

S. Liu, L. Ahlm, D.A. Day, L.M. Russell, Y. Zhao, D.R. Gentner, R. Weber, A.H. Goldstein, M. Jaoui, J.H. Offenberg, T.E. Kleindienst, C. Rubitschun, J.D. Surratt, R.J. Sheesley, S. Scheller (2012) “Secondary organic aerosol formation from fossil fuel sources contribute majority of summertime organic mass at Bakersfield,” Journal of Geophysical Research, 117, D00V26.

L. Ahlm, S. Liu, D.A. Day, L.M. Russell, R. Weber, D.R. Gentner, A.H. Goldstein, J.P. DiGangi, S.B. Henry, F.N. Keutsch, T.C. VandenBoer, M.Z. Markovic, J.G. Murphy, X. Ren, S. Scheller (2012) “Formation and growth of ultrafine particles from secondary sources in Bakersfield, California,” Journal Geophysical Research, 117, D00V08.

A.H. Goldstein, J.F. Karlik, S. Fares, E. Ormeno, D.R. Gentner, J.H. Park, R. Weber, M. McKay (2012) “Measurements of ozone removal and VOC emissions in citrus trees with implications for regional air quality,” Report to the Citrus Research Board.

J.F. Karlik, S. Fares, D.R. Gentner, A.H. Goldstein (2012) “Biogenic emissions from Citrus species in California measured via an enclosure system,” Citrograph, Jan/Feb. 2012, 40-43.

S. Fares, R. Weber, J.H. Park, D.R. Gentner, J. Karlik, A.H. Goldstein (2012) “Ozone deposition to an orange orchard: Partitioning between stomatal and non-stomatal sinks,” Environmental Pollution, 169, 258-266.


S. Fares, D.R. Gentner, J.H. Park, E. Ormeno, J. Karlik, A.H. Goldstein (2011) “Biogenic emissions from Citrus species in California,” Atmospheric Environment, 45 (27), 4557-4568.

A.H. Goldstein, J.F. Karlik, S. Fares, E. Ormeno, D.R. Gentner, J.H. Park, R. Weber, M. McKay (2011) “Flux measurements of biogenic precursors to ozone and particulate matter in the central valley,” Report to the California Air Resources Board (contract no. 06-329).


D.R. Gentner, A.M. Miller, A.H. Goldstein (2010) “Seasonal Variability in Anthropogenic Halocarbon Emissions,” Environmental Science and Technology, 44 (14), 5377–5382.

S. Fares, J.H. Park, E. Ormeno, D.R. Gentner, M. McKay, F. Loreto, J.F. Karlik, A.H. Goldstein (2010) “Ozone uptake by Citrus trees exposed to a range of ozone concentrations,” Atmospheric Environment, 44 (28), 3404–3412.

E. Ormeno, D.R. Gentner, S. Fares, J. Karlik, J.H. Park, A.H. Goldstein (2010) “Sesquiterpenoid emissions from agricultural crops: correlations to monoterpenoid emissions and leaf terpene content,” Environmental Science and Technology, 44 (10), 3758–3764.

L. Chen, M.E. Graham, G. Li, D.R. Gentner, K.A. Gray (2009) “Photoreduction of CO2 by TiO2 Nanocomposites Synthesized through Reactive DC Magnetron Sputter Deposition,” Thin Solid Films, 517 (19), 5641-5645.

D.R. Gentner, R.A. Harley, A.M. Miller, A.H. Goldstein (2009) “Diurnal and Seasonal Variability of Gasoline-related Volatile Organic Compounds in Riverside, California,” Environmental Science and Technology, 43 (12), 4247–4252.