Grantee Research Project Results
2018 Progress Report: Rethinking the Formation of Secondary Organic Aerosols (SOA) Under Changing Climate by Incorporating Mechanistic and Field Constraints
EPA Grant Number: R835877Title: Rethinking the Formation of Secondary Organic Aerosols (SOA) Under Changing Climate by Incorporating Mechanistic and Field Constraints
Investigators: Jimenez, Jose-Luis , Hodzic, Alma , Emmons, Louisa
Current Investigators: Jimenez, Jose-Luis , Emmons, Louisa , Hodzic, Alma , Aumont, Bernard , Lamarque, Jean-Francois , Madronich, Sasha
Institution: University of Colorado at Boulder , National Center for Atmospheric Research
EPA Project Officer: Keating, Terry
Project Period: January 1, 2016 through December 31, 2018 (Extended to October 15, 2020)
Project Period Covered by this Report: January 1, 2018 through December 31,2018
Project Amount: $469,808
RFA: Particulate Matter and Related Pollutants in a Changing World (2014) RFA Text | Recipients Lists
Research Category: Air , Climate Change
Objective:
The overall objective of this work is to evaluate the changes and impacts of secondary organic aerosols (SOA) under future climate scenarios, using more realistic formation mechanisms than have been used in past studies. This is important because SOA has important impacts on human health and radiative forcing, and at present it is unclear how those effects will change under future climate and emission conditions. SOA parameterizations will be made more realistic and traceable by constraining them with the semi-explicit and explicit models, and constraining them with oxidation flow reactor (OFR), thermodenuder (TD), and environmental chamber observations. Regional and global model results will be evaluated against observations from high quality airborne field campaigns (already collected at no cost to this project) and from ground sites and networks. Three-dimensional (3D) models will then be used to project the changes and impacts of SOA under future climate scenarios.
Progress Summary:
There are 3 main objectives in this project: (1) develop and test updated SOA formation parameterizations; (2) calculate present SOA using 3D models and compare to observations; and (3) evaluate SOA using 3D models under future climate scenarios. Further details of the objectives are given in section 3 of the proposal. Work to date has focused on all three objectives. The results are described below and directly address the objectives of this proposal and will help improve SOA modeling under current and future climate scenarios. Therefore, these results contribute to EPA's mission to protect human health and the environment through the improved understanding and ability to predict the behavior of aerosols in the atmosphere, which are known to have major effects on human health and climate.
Objective 1: Improve SOA mechanisms for use in global models
- The Generator for Explicit Chemistry and Kinetics of Organics in the Atmosphere (GECKO-A) box model has been used under multiple environmental conditions to study the SOA formation and properties from typical hydrocarbon precursors and (ii) to fit a Volatility Basis Set (VBS) type parameterization, which can be used in 3D models. The set of parent hydrocarbons includes n-alkanes and 1-alkenes with 10, 14, 18, 22, and 26 carbon atoms, alpha-pinene, beta-pinene and limonene, benzene, toluene, o-xylene, m-xylene and p-xylene. Isoprene chemistry was not considered as GECKO does not treat the aqueous phase formation, and a different approach has been adapted to develop a parameterization for isoprene SOA (see below). Its evaluation shows that VBS-GECKO captures the dynamic of SOA formation for a large range of conditions within 20% of the explicit simulations. This VBS-GECKO is however computationally very demanding, and we are currently working on a reduced version of it. A paper detailing these results has been published during this reporting period (Lannuque et al., 2018).
- A parameterization method has been developed to simulate the SOA formed from isoprene-derived epoxydiols (IEPOX-SOA). Our parameterization enables the fast calculation of IEPOX-SOA mass, maintaining accuracy compared to full chemistry simulation results. It uses the chemical environment (e.g., OH, HO2, and NO) and aerosol properties (e.g., pH and surface area), to estimate the yield of this chemistry at different locations. This results in much better accuracy compared to the constant 3% yield from isoprene emissions used in most global modeling studies. Our parameterization accurately captures the response to changes on NOx and SO2 emissions, which is a critical factor for long-term climate simulation. This is a major improvement compared to the constant 3% yield and VBS approaches, that show almost no response of isoprene SOA after large changes in NOx and/or SO2. A paper detailing these findings has just been published in Geoscientific Model Development (Jo et al., 2019).
- We are applying a simpler box model (KinSim, within Igor Pro) and the fully explicit GECKO-A box model to simulate in detail the chemistry within the oxidation flow reactors (OFR), including that of oxidized nitrogen species, peroxy radicals, and volatile organic compounds. We are also developing an interface using Igor Pro to enable the exploration of GECKO-A results in a non-Unix setting. The results show reasonable correspondence to simulated chemistry in a typical chamber and in the ambient atmosphere under a subset of explored physical conditions, which have been identified. In particular, we have found that under low-NO conditions, achieving a peroxy radical chemistry that is as relevant to the atmosphere as possible requires physical conditions leading to relatively low OH (compared to the highest achievable OFR OH concentrations, but still much higher than ambient values) to allow isomerizations of peroxy radicals and avoid their reactions with OH.These results have been published in a paper in this report period (Peng et al., 2019 ACP). We have also been invited by Chemical Society Reviews to contribute a review paper summarizing all the recent findings of OFR radical chemistry. We are actively preparing this paper and will submit it very soon.
- A new VBS parametrization is being developed for monoterpene-derived SOA. We have taken into account as many constraints as possible, including constraints from field measurements. These include SOA yields at organic aerosol (OA) concentrations of ~1-10 micrograms m-3 measured in traditional chamber experiments, new SOA yields at very low OA concentrations (from extremely low volatility species, or ELVOCs), OA volatility quantified in aircraft measurements under small temperature changes, and OA evaporation at higher temperatures in thermal denuder (TD) experiments. With these constraints considered, the new parametrization would be suitable for modeling monoterpene-derived SOA formation more robustly across a range of conditions, in pristine regions (where only low-volatility species contribute to OA growth), in colder regions (e.g., the Arctic or the upper free troposphere), and in a warming climate. Aging of OA is currently being considered to improve the agreement with the TD experiment results and the modeled TD experiments using this VBS parametrization. VBS parametrizations for anthropogenic-derived and biomass burning SOA will be developed in a similar manner.
- SOA formation in winter in the Northeast United States and over Seoul, South Korea, has been quantified and compared to prior studies. The differences and the factors controlling SOA production efficiency among megacities is being quantified. Dependencies on VOC emissions composition such as aromatic emissions reactivity, traffic vs volatile consumer products (VCPs) emissions, and population density have been found. Parameterizations of those relationships and associated emissions have been incorporated into a GEOS-Chem chemical transport model to show that ~400,000 less deaths per year would occur if urban SOA precursors were regulated and removed.
- Net SOA formation from wildfire plumes is a controversial topic, with field studies showing typically no increase or decrease in mass with photochemical aging, while lab studies suggest very strong increases in mass due to SOA formation. We have collaborated on a Critical Review in Environmental Science & Technology that summarizes all the literature studies to date, and sets up the state of the field ahead of the WE-CAN and FIREX-AQ experiments.
Objective 2: Implement the new mechanisms in global models and simulate present conditions
- New parameterizations developed in this project have been applied to two major 3D global chemistry models - GEOS-Chem and CAM-chem. First, IEPOX-SOA parameterization was implemented in the GEOS-Chem. The parameterization successfully captures global spatial and temporal distributions of IEPOX-SOA simulated by the explicit full chemistry. This parameterization is now being implemented into CAM-Chem.
- Second, the new VBS parametrization for monoterpene SOA is implemented in CAM-chem. The result shows substantial changes in SOA concentrations for pristine and colder regions, which can help to understand SOA partitioning of 3D models in these regions.
- Our group has acquired (with separate funding) a unique global dataset of OA on the NASA ATOM campaigns, which sampled the remote free troposphere over the Pacific and Atlantic over 4 seasons. Results from these measurements are being extensively compared to results from different global models, including the GEOS-Chem and CAM-Chem models. While the new implementations of CAM-Chem and GEOS-Chem reproduce total OA observations fairly well, this is partially for the wrong reasons as POA is severely overestimated and SOA is underestimated. Model sensitivities are investigated with respect to wall-corrected yields, efficient depositions with new Henry's law constants, photolytic removal, and heterogeneous reaction with ozone. A paper evaluating the models with the ATOM measurements is nearing submission.
Objective 3: Evaluate SOA using 3D models under future climate scenarios
- We are using the Community Earth System Model (CESM) v2 to simulate SOA under future climate. We are currently using the SSP5-8.5 socioeconomic pathways for land-use and emission changes, and we will perform three additional scenarios (SSP3-7.0, SSP2-4.5, and SSP1-2.6) provided by Scenario Model Intercomparison Project (ScenarioMIP). IEPOX-SOA and monoterpene SOA changes under SSP5-8.5 scenario are being investigated at present.
Future Activities:
Work will continue along several lines:
- Completing the review of OFR radical chemistry and publishing it.
- Complete and submit a paper on the updated terpene VBS parameterization.
- Continue the evaluation of the performance of the 3D models (GEOS-Chem and CAM-chem) in simulating current SOA data, such as from ATOM and other campaigns, with both the default and the improved parameterizations.
- Investigate the changes in concentrations, budgets and climate impacts of IEPOX-SOA (and time permitting, terpene SOA) under four different socioeconomic pathways using CESMv2 with CAM-chem.
- Complete megacity SOA chemical parameterizations and modeled mortality implications analysis and publish manuscript.
Journal Articles on this Report : 44 Displayed | Download in RIS Format
Other project views: | All 53 publications | 53 publications in selected types | All 53 journal articles |
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Cappa CD, Jathar SH, Kleeman MJ, Docherty KS, Jimenez JL, Seinfeld JH, Wexler AS. Simulating secondary organic aerosol in a regional air quality model using the statistical oxidation model – Part 2: assessing the influence of vapor wall losses. Atmospheric Chemistry and Physics 2016;16(5):3041-3059. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Carlton AG, de Gouw J, Jimenez JL, Ambrose JL, Attwood AR, Brown S, Baker KR, Brock C, Cohen RC, Edgerton S, Farkas CM, Farmer D, Goldstein AH, Gratz L Guenther A, Hunt S, Jaegle L, Jaffe DA, Mak J, McClure C, Nenes A, Nguyen TK, Pierce JR, de Sa, S, Selin NE, Shah V, Shaw S, Shepson PB, Song S, Stutz J, Surratt JD, Turpin BJ, Warneke C, Washenfelder RA, Wennberg PO, Zhou X. Synthesis of the southeast atmosphere studies: investigating fundamental atmospheric chemistry questions. Bulletin of the American Meteorological Society 2018;99(3):547-567. |
R835877 (2018) R835877 (2019) R835404 (Final) R835407 (Final) R835410 (Final) R835412 (Final) |
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Ciarelli G, Aksoyoglu S, Crippa M, Jimenez J-L, Nemitz E, Sellegri K, Aijala M, Carbone S, Mohr C, O'Dowd C, Poulain L, Baltensperger U, Prevot ASH. Evaluation of European air quality modelled by CAMx including the volatility basis set scheme. Atmospheric Chemistry and Physics 2016;16(16):10313-10332. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Gentner DR, Jathar SH, Gordon TD, Bahreini R, Day DA, El Haddad I, Hayes PL, Pieber SM, Platt SM, de Gouw J, Goldstein AH, Harley RA, Jimenez JL, Prevot ASH, Robinson AL. Review of urban secondary organic aerosol formation from gasoline and diesel motor vehicle emissions. Environmental Science & Technology 2017;51(3):1074-1093. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Hodshire AL, Akherati A, Alvarado MJ, Brown-Steiner B, Jathar SH, Jimenez JL, Kreidenweis SM, Lonsdale CR, Onasch TB, Ortega AM, Pierce JR. Aging effects on biomass burning aerosol mass and composition:A critical review of field and laboratory studies. Environmental Scienc & Technology 2019;53:10007–22. . |
R835877 (2018) R835877 (2019) R833747 (Final) |
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Hodzic A, Kasibhatla PS, Jo DS, Cappa CD, Jimenez JL, Madronich S, Park RJ. Rethinking the global secondary organic aerosol (SOA) budget:stronger production, faster removal, shorter lifetime. Atmospheric Chemistry and Physics 2016;16(12):7917-7941. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Kiendler-Scharr A, Mensah AA, Friese E, Topping D, Nemitz E, Prevot ASH, Aijala M, Allan J, Canonaco F, Canagaratna M, Carbone S, Crippa M, Dall Osto M, Day DA, De Carlo P, Di Marco CF, Elbern H, Eriksson A, Freney E, Hao L, Herrmann H, Hildebrandt L, Hillamo R, Jimenez JL, Laaksonen A, McFiggans G, Mohr C, O'Dowd C, Otjes R, Ovadnevaite J, Pandis SN, Poulain L, Schlag P, Sellegri K, Swietlicki E, Tiitta P, Vermeulen A, Wahner A, Worsnop D, Wu H-C. Ubiquity of organic nitrates from nighttime chemistry in the European submicron aerosol. Geophysical Research Letters 2016;43(14):7735-7744. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Ma PK, Zhao Y, Robinson AL, Worton DR, Goldstein AH, Ortega AM, Jimenez JL, Zotter P, Prevot ASH, Szidat S, Hayes PL. Evaluating the impact of new observational constraints on P-S/IVOC emissions, multi-generation oxidation, and chamber wall losses on SOA modeling for Los Angeles, CA. Atmospheric Chemistry and Physics 2017;17(15):9237-9259. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Maclean AM, Butenhoff CL, Grayson JW, Barsanti K, Jimenez JL, Bertram AK. Mixing times of organic molecules within secondary organic aerosol particles: a global planetary boundary layer perspective. Atmospheric Chemistry and Physics 2017;17(21):13037-13048. |
R835877 (2017) R835877 (2018) R835877 (2019) |
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Mao J, Carlton A, Cohen RC, Brune WH, Brown SS, Wolfe GM, Jimenez JL, Pye HOT, Ng, NL, Xu L, McNeill VF, Tsigaridis K, McDonald BC, Warneke C, Guenther A, Alvarado MJ, de Gouw J, Mickley LJ, Leibensperger EM, Mathur R, Nolte CG, Portmann RW, Unger N, Tosca M, Horowitz LW. Southeast Atmosphere Studies: learning from model-observation syntheses. Atmospheric Chemistry and Physics 2018;18(4):2615-2651. |
R835877 (2017) R835877 (2018) R835877 (2019) |
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McDuffie EE, Fibiger DL, Dube WP, Lopez‐Hilfiker F, Lee BH, Thornton JA, Shah V, Jaegle L, Guo H, Weber RJ,Reeves JM, Weinheimer AJ, Schroder JC, Campuzano-Jost P, Jimenez JL, Dibb JE, Veres P, Ebben C, Sparks TL, Woolridge PJ, Cohen RC, Hornbrook RS, Apel EC, Campos T, Hall SR, Ullman K, Brown SS. Heterogeneous N2 O5 uptake during winter: aircraft measurements during the 2015 WINTER campaign and critical evaluation of current parameterizations. Journal of Geophysical Research: Atmospheres 2018;123(8):4345-4372. |
R835877 (2017) R835877 (2018) R835877 (2019) |
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Murphy BN, Woody MC, Jimenez JL, Carlton AMG, Hayes PL, Liu S, Ng NL, Russell LM, Setyan A, Xu L, Young J, Zaveri RA, Zhang Q, Pye HOT. Semivolatile POA and parameterized total combustion SOA in CMAQv5.2: impacts on source strength and partitioning. Atmospheric Chemistry and Physics 2017;17(18):11107-11133. |
R835877 (2017) R835877 (2018) R835877 (2019) R835403 (Final) |
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Ng NL, Brown SS, Archibald AT, Atlas E, Cohen RC, Crowley JN, Day DA, Donahue NM, Fry JL, Fuchs H, Griffin RJ, Guzman MI, Herrmann H, Hodzic A, Iinuma Y, Jimenez JL, Kiendler-Scharr A, Lee BH, Luecken DJ, Mao J, McLaren R, Mutzel A, Osthoff HD, Ouyang B, Picquet-Varrault B, Platt U, Pye HOT, Rudich Y, Schwantes RH, Shiraiwa M, Stutz J, Thornton JA, Tilgner A, Williams BJ, Zaveri RA. Nitrate radicals and biogenic volatile organic compounds: oxidation, mechanisms, and organic aerosol. Atmospheric Chemistry and Physics 2017;17(3):2103-2162. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) R835403 (2015) R835403 (Final) |
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Nguyen TKV, Zhang Q, Jimenez JL, Pike M, Carlton AG. Liquid water: ubiquitous contributor to aerosol mass. Environmental Science & Technology Letters 2016;3(7):257-263. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) R835877 (Final) R835041 (Final) |
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Ortega AM, Hayes PL, Peng Z, Palm BB, Hu W, Day DA, Li R, Cubison MJ, Brune WH, Graus M, Warneke C, Gilman JB, Kuster WC, de Gouw J, Gutierrez-Montes C, Jimenez JL. Real-time measurements of secondary organic aerosol formation and aging from ambient air in an oxidation flow reactor in the Los Angeles area. Atmospheric Chemistry and Physics 2016;16(11):7411-7433. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Palm BB, Campuzano-Jost P, Ortega AM, Day DA, Kaser L, Jud W, Karl T, Hansel A, Hunter JF, Cross ES, Kroll JH, Peng Z, Brune WH, Jimenez JL. In situ secondary organic aerosol formation from ambient pine forest air using an oxidation flow reactor. Atmospheric Chemistry and Physics 2016;16(5):2943-2970. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Palm BB, Campuzano-Jost P, Day DA, Ortega AM, Fry JL, Brown SS, Zarzana KJ, Dube W, Wagner NL, Draper DC, Kaser L, Jud W, Karl T, Hansel A, Gutierrez-Montes C, Jimenez JL. Secondary organic aerosol formation from in situ OH, O3 , and NO3 oxidation of ambient forest air in an oxidation flow reactor. Atmospheric Chemistry and Physics 2017;17(8):5331-5354. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Palm BB, de Sa SS, Day DA, Campuzano-Jost P, Hu W, Seco R, Sjostedt SJ, Park J-H, Guenther AB, Kim S, Brito J, Wurm F, Artaxo P, Thalman R, Wang J, Yee LD, Wernis R, Isaacman-VanWertz G, Goldstein AH, Liu Y, Springston SR, Souza R, Newburn MK, Alexander ML, Martin ST, Jimenez JL. Secondary organic aerosol formation from ambient air in an oxidation flow reactor in central Amazonia. Atmospheric Chemistry and Physics 2018;18(1):467-493. |
R835877 (2017) R835877 (2018) R835877 (2019) |
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Peng Z, Jimenez JL. Modeling of the chemistry in oxidation flow reactors with high initial NO. Atmospheric Chemistry and Physics 2017;17(19):11991-12010. |
R835877 (2017) R835877 (2018) R835877 (2019) |
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Peng Z, Palm BB, Day DA, Talukdar RK, Hu W, Lambe AT, Brune WH, Jimenez JL. Model evaluation of new techniques for maintaining high-NO conditions in oxidation flow reactors for the study of OH-initiated atmospheric chemistry. ACS Earth and Space Chemistry 2018;2(2):72-86. |
R835877 (2017) R835877 (2018) R835877 (2019) |
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Platt SM, El Haddad I, Pieber SM, Zardini AA, Suarez-Bertoa R, Clairotte M, Daellenbach KR, Huang RJ, Slowik JG, Hellebust S, Temime-Roussel B, Marchand N, de Gouw J, Jimenez JL, Hayes PL, Robinson AL, Baltensperger U, Astorga C, Prevot ASH. Gasoline cars produce more carbonaceous particulate matter than modern filter-equipped diesel cars. Scientific Reports 2017;7(1):4926 (9 pp.). |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Pye HOT, Murphy BN, Xu L, Ng NL, Carlton AG, Guo H, Weber R, Vasilakos P, Appel KW, Budisulistiorini SH, Surratt JD, Nenes A, Hu W, Jimenez JL, Isaacman-VanWertz G, Misztal PK, Goldstein AH. On the implications of aerosol liquid water and phase separation for organic aerosol mass. Atmospheric Chemistry & Physics 2017;17(1):343-369. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) R835403 (2015) R835403 (Final) R835404 (2015) R835404 (Final) R835407 (Final) R835410 (Final) R835412 (Final) |
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Reddington CL, Carslaw KS, Stier P, Schutgens N, Coe H, Liu D, Allan J, Browse J, Pringle KJ, Lee LA, Yoshioka M, Johnson JS, Regayre LA, Spracklen DV, Mann GW, Clarke A, Hermann M, Henning S, Wex H, Kristensen TB, Leaitch WR, Poeschl U, Rose D, Andreae MO, Schmale J, Kondo Y, Oshima N, Schwarz JP, Nenes A, Anderson B, Roberts GC, Snider JR, Leck C, Quinn PK, Chi X, Ding A, Jimenez JL, Zhang Q. The Global Aerosol Synthesis and Science Project (GASSP): measurements and modelling to reduce uncertainty. Bulletin of the American Meteorological Society 2017;98(9):1857-1877. |
R835877 (2017) R835877 (2018) R835877 (2019) R835877 (Final) |
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Stark H, Yatavelli RLN, Thompson SL, Kang H, Krechmer JE, Kimmel JR, Palm BB, Hu W, Hayes PL, Day DA, Campuzano-Jost P, Canagaratna MR, Jayne JT, Worsnop DR, Jimenez JL. Impact of thermal decomposition on thermal desorption instruments: advantage of thermogram analysis for quantifying volatility distributions of organic species. Environmental Science & Technology 2017;51(15):8491-8500. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Zhang X, Krechmer JE, Groessl M, Xu W, Graf S, Cubison M, Jayne JT, Jimenez JL, Worsnop DR, Canagaratna MR. A novel framework for molecular characterization of atmospherically relevant organic compounds based on collision cross section and mass-to-charge ratio. Atmospheric Chemistry and Physics 2016;16(20):12945-12959. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Zhang Y, Williams BJ, Goldstein AH, Docherty KS, Jimenez JL. A technique for rapid source apportionment applied to ambient organic aerosol measurements from a thermal desorption aerosol gas chromatograph (TAG). Atmospheric Measurement Techniques 2016;9(11):5637-5653. |
R835877 (2016) R835877 (2017) R835877 (2018) R835877 (2019) |
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Fry JL, Brown SS, Middlebrook AM, Edwards PM, Campuzano-Jost P, Day DA, Jimenez JL, Allen HM, Ryerson TB, Pollack I, Graus M, Warneke C, de Gouw JA, Brock CA, Gilman J, Lerner BM, Dubé WP, Liao J and Welti A. Secondary organic aerosol (SOA) yields from NO3 radical + isoprene based on nighttime aircraft power plant plume transects. Atmospheric Chemistry and Physics 2018; 18(16):11663-11682. |
R835877 (2018) R835877 (2019) R835877 (Final) R835399 (Final) |
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Massoli P, Stark H, Canagaratna MR, Krechmer JE, Xu L, Ng NL, Mauldin RL, Yan C, Kimmel J, Misztal PK, Jimenez JL, Jayne JT and Worsnop DR. Ambient Measurements of Highly Oxidized Gas-Phase Molecules during the Southern Oxidant and Aerosol Study (SOAS) 2013. ACS Earth and Space Chemistry 2018; 2(7):653-672. |
R835877 (2018) R835877 (2019) |
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Ditto JC, Barnes EB, Khare P, Takeuchi M, Joo T, Bui AAT, Lee-Taylor J, Eris G, Chen Y, Aumont B, Jimenez JL, Ng NL, Griffin RJ and Gentner DR. An omnipresent diversity and variability in the chemical composition of atmospheric functionalized organic aerosol. Communications Chemistry 2018; 1(1). |
R835877 (2018) R835877 (2019) |
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McDuffie EE, Fibiger DL, Dubé WP, Lopez Hilfiker F, Lee BH, Jaeglé L, Guo H, Weber RJ, Reeves JM, Weinheimer AJ, Schroder JC, Campuzano‐Jost P, Jimenez JL, Dibb JE, Veres P, Ebben C, Sparks TL, Wooldridge PJ, Cohen RC, Campos T, Hall SR, Ullmann K, Roberts JM, Thornton JA and Brown SS. ClNO2 Yields From Aircraft Measurements During the 2015 WINTER Campaign and Critical Evaluation of the Current Parameterization. Journal of Geophysical Research:Atmospheres 2018; 123(22). |
R835877 (2018) R835877 (2019) |
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Hodshire AL, Palm BB, Alexander ML, Bian QJ, Campuzano-Jost P, Cross ES, Day DA, de Sa SS, Guenther AB, Hansel A, Hunter JF, Jud W, Karl T, Kim S, Kroll JH, Park JH, Peng Z, Seco R, Smith JN, Jimenez JL and Pierce JR. Constraining nucleation, condensation, and chemistry in oxidation flow reactors using size-distribution measurements and aerosol microphysical modeling. Atmospheric Chemistry and Physics 2018; 18(16):12433-12460. |
R835877 (2018) R835877 (2019) |
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Lannuque V, Camredon M, Couvidat F, Hodzic A, Valorso R, Madronich S, Bessagnet B and Aumont B. Exploration of the influence of environmental conditions on secondary organic aerosol formation and organic species properties using explicit simulations:development of the VBS-GECKO parameterization. Atmospheric Chemistry and Physics 2018; 18(18):13411-13428. |
R835877 (2018) R835877 (2019) |
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Hodzic A and Duvel JP. Impact of Biomass Burning Aerosols on the Diurnal Cycle of Convective Clouds and Precipitation Over a Tropical Island. Journal of Geophysical Research:Atmospheres 2018; 123(2):1017-1036. |
R835877 (2018) |
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Yee LD, Isaacman-VanWertz G, Wernis RA, Meng M, Rivera V, Kreisberg NM, Hering SV, Bering MS, Glasius M, Upshur MA, Gray Bé A, Thomson RJ, Geiger FM, Offenberg JH, Lewandowski M, Kourtchev I, Kalberer M, de Sá S, Martin ST, Alexander ML, Palm BB, Hu W, Campuzano-Jost P, Day DA, Jimenez JL, Liu Y, McKinney KA, Artaxo P, Viegas J, Manzi A, Oliveira MB, de Souza R, Machado LAT, Longo K and Goldstein AH. Observations of sesquiterpenes and their oxidation products in central Amazonia during the wet and dry seasons. Atmospheric Chemistry and Physics 2018; 18(14):10433-10457. |
R835877 (2018) R835877 (2019) |
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Nault BA, Campuzano-Jost P, Day DA, Schroder JC, Anderson B, Beyersdorf AJ, Blake DR, Brune WH, Choi Y, Corr CA, de Gouw JA, Dibb J, DiGangi JP, Diskin GS, Fried A, Huey LG, Kim MJ, Knote CJ, Lamb KD, Lee T, Park T, Pusede SE, Scheuer E, Thornhill KL, Woo JH and Jimenez JL. Secondary organic aerosol production from local emissions dominates the organic aerosol budget over Seoul, South Korea, during KORUS-AQ. Atmospheric Chemistry and Physics 2018; 18(24):17769-17800. |
R835877 (2018) R835877 (2019) |
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Toma S, Bertman S, Groff C, Xiong F, Shepson PB, Romer P, Duffey K, Wooldridge P, Cohen R, Baumann K, Edgerton E, Koss AR, de Gouw J, Goldstein A, Hu W and Jimenez JL. Importance of biogenic volatile organic compounds to acyl peroxy nitrates (APN) production in the southeastern US during SOAS 2013. Atmospheric Chemistry and Physics 2019; 19(3):1867-1880. |
R835877 (2018) R835877 (2019) R835409 (Final) |
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Jo DS, Hodzic A, Emmons LK, Marais EA, Peng Z, Nault BA, Hu W, Campuzano-Jost P and Jimenez JL. A simplified parameterization of isoprene-epoxydiol-derived secondary organic aerosol (IEPOX-SOA) for global chemistry and climate models:a case study with GEOS-Chem v11-02-rc. Geoscientific Model Development 2019; 12(7):2983-3000. |
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Nagori J, Janssen RHH, Fry JL, Krol M, Jimenez JL, Hu WW and de Arellano JVG. Biogenic emissions and land-atmosphere interactions as drivers of the daytime evolution of secondary organic aerosol in the southeastern US. Atmospheric Chemistry and Physics 2019; 19(2):701-729. |
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Mircea M, Bessagnet B, D'Isidoro M, Pirovano G, Aksoyoglu S, Ciarelli G, Tsyro S, Manders A, Bieser J, Stern R, Vivanco MG, Cuvelier C, Aas W, Prévôt ASH, Aulinger A, Briganti G, Calori G, Cappelletti A, Colette A, Couvidat F, Fagerli H, Finardi S, Kranenburg R, Rouïl L, Silibello C, Spindler G, Poulain L, Herrmann H, Jimenez JL, Day DA, Tiitta P and Carbone S. EURODELTA III exercise:An evaluation of air quality models’ capacity to reproduce the carbonaceous aerosol. Atmospheric Environment:X 2019; 2. |
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Peng Z and Jimenez JL. KinSim:A Research-Grade, User-Friendly, Visual Kinetics Simulator for Chemical-Kinetics and Environmental-Chemistry Teaching. Journal of Chemical Education 2019; 96(4):806-811. |
R835877 (2018) R835877 (2019) |
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Peng Z, Lee-Taylor J, Orlando JJ, Tyndall GS and Jimenez JL. Organic peroxy radical chemistry in oxidation flow reactors and environmental chambers and their atmospheric relevance. Atmospheric Chemistry and Physics 2019; 19(2):813-834. |
R835877 (2018) R835877 (2019) |
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Akherati A, Cappa CD, Kleeman MJ, Docherty KS, Jimenez JL, Griffith SM, Dusanter S, Stevens PS and Jathar SH. Simulating secondary organic aerosol in a regional air quality model using the statistical oxidation model – Part 3:Assessing the influence of semi-volatile and intermediate-volatility organic compounds and NOx. Atmospheric Chemistry and Physics 2019; 19(7):4561-4594. |
R835877 (2018) R835877 (2019) |
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Shah V, Jaeglé L, Jimenez JL, Schroder JC, Campuzano‐Jost P, Campos TL, Reeves JM, Stell M, Brown SS, Lee BH, Lopez‐Hilfiker FD and Thornton JA. Widespread Pollution From Secondary Sources of Organic Aerosols During Winter in the Northeastern United States. Geophysical Research Letters 2019; 46(5):2974-2983. |
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Schroder JC, Campuzano-Jost P, Day DA, Shah V, Larson K, Sommers JM, Sullivan AP, Campos T, Reeves JM, Hills A, Hornbrook RS, Blake NJ, Scheuer E, Guo H, Fibiger DL, McDuffie EE, Hayes PL, Weber RJ, Dibb JE, Apel EC, Jaeglé L, Brown SS, Thornton JA and Jimenez JL. Sources and Secondary Production of Organic Aerosols in the Northeastern United States during WINTER. Journal of Geophysical Research:Atmospheres 2018. |
R835877 (2018) R835877 (2019) |
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Supplemental Keywords:
Secondary Organic Aerosol, SOA, modeling, atmospheric chemistryRelevant Websites:
- OFR Tutorial and operation /interpretation recommendations Exit
- OFR chemistry estimation equations, and ROfate estimation equations Exit
Progress and Final Reports:
Original AbstractThe perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.