Science Inventory

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Simon, H., C. Hogrefe, A. Whitehill, K. Foley, J. Liljegren, Norman Possiel, B. Wells, B. Henderson, L. Valin, G. Tonnesen, Keith Appel, AND S. Koplitz. Revisiting day-of-week ozone patterns in an era of evolving US air quality. Atmospheric Chemistry and Physics. Copernicus Publications, Katlenburg-Lindau, Germany, 24(3):1855-1871, (2024). https://doi.org/10.5194/acp-24-1855-2024

Simon, H., Keith Appel, K. Foley, B. Henderson, C. Hogrefe, S. Koplitz, Norman Possiel, G. Tonnesen, L. Valin, B. Wells, AND A. Whitehill. Comparison of 18 years of modeled and observed day-of-week ozone patterns. International Technical Meeting on Air Pollution Modeling and its Application, Chapel Hill, NC, May 22 - 26, 2023.

Pye, H., B. Place, Christine Allen, E. D'Ambro, Keith Wyat Appel, J. Bash, M. Coggon, S. Farrell, K. Foley, C. Hogrefe, W. Hutzell, F. McNeill, B. Murphy, I. Piletic, G. Pouliot, R. Schwantes, G. Sarwar, E. Saunders, K. Seltzer, H. Simon, W. Stockwell, L. Valin, F. Wisner, AND L. Xu. Designing chemical mechanisms for ozone and secondary organic aerosol endpoints (ACM 2022). Atmospheric Chemical Mechanisms, Davis, CA, December 07 - 09, 2022.

Koplitz, S., H. Simon, B. Henderson, J. Liljegren, G. Tonnesen, A. Whitehill, AND B. Wells. Changes in ozone chemical sensitivity in the U.S. from 2007 to 2016. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY. American Chemical Society, Washington, DC, 2(3):206-222, (2021). https://doi.org/10.1021/acsenvironau.1c00029

Simon, H., Patrick Dolwick, A. Eyth, B. Henderson, S. Koplitz, Robert Owen, S. Phillips, Norman Possiel, V. Rao, B. Timin, J. Vukovich, C. Bailey, M. Beardsley, D. Choi, J. Han, H. Michaels, S. Roberts, D. Sonntag, J. Warila, M. Zawacki, Keith Appel, J. Bash, K. Foley, G. Pouliot, H. Pye, L. Valin, S. Ballare, C. Toro, AND S. Kimbrough. Overview of Progress and Findings from the Cross-EPA Coordination Effort for Understanding and Evaluating NOx Emissions Discrepancies. U.S. Environmental Protection Agency, Washington, DC, EPA-454/R-21-0084, 2021.

Sonntag, D., J. Bash, C. Toro, G. Burke, B. Murphy, K. Seltzer, H. Simon, S. Benish, K. Foley, A. Eyth, C. Allen, J. Godfrey, M. Shephard, AND K. Cady-Pereira. Sensitivity of Particulate Matter Concentrations to Revised Estimates of Onroad Ammonia Emissions. CMAS, Virtual, Virtual, November 01 - 05, 2021.

Simon, H. AND G. Sarwar. Introduction to the November 2020 issue of EM Magazine on Background Ozone. EM: AIR AND WASTE MANAGEMENT ASSOCIATION'S MAGAZINE FOR ENVIRONMENTAL MANAGERS. Air & Waste Management Association, Pittsburgh, PA, , 6-7, (2020).

Simon, H., B. Henderson, Robert Owen, K. Foley, M. Snyder, AND E. Kimbrough. Variability in observation-based onroad emission constraints from a near-road environment. ATMOSPHERE. MDPI, Basel, Switzerland, 11(11):1243, (2020). https://doi.org/10.3390/atmos11111243

Bray, C., M. Strum, H. Simon, L. Riddick, M. Kosusko, M. Menetrez, M. Hays, AND V. Rao. An assessment of important SPECIATE profiles in the EPA emissions modeling platform and current data gaps. ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 207:93-104, (2019). https://doi.org/10.1016/j.atmosenv.2019.03.013

Kelly, J., S. Koplitz, K. Baker, A. Holder, H. Pye, B. Murphy, J. Bash, B. Henderson, Norman Possiel, H. Simon, A. Eyth, C. Jang, S. Phillips, AND B. Timin. Assessing PM2.5 model performance for the conterminous U.S. with comparison to model performance statistics from 2007-2015. ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 214:116872, (2019). https://doi.org/10.1016/j.atmosenv.2019.116872

Foley, K., H. Simon, C. Toro, K. Baker, Keith Wyat Appel, B. Henderson, AND A. Eyth. Evaluation of CMAQ Estimated NOx from 2002 - 2016. 2019 Annual Community Modeling and Analysis System (CMAS) Conference, Chapel Hill, NC, October 21 - 23, 2019.

Simon, H., K. Foley, C. Toro, K. Baker, Keith Appel, B. Henderson, A. Eyth, AND D. Luecken. Evaluation of CMAQ Estimated NOx from 2002 to 2016. 2019 AGU Fall Meeting, San Francisco, California, December 09 - 13, 2019.

Foley, K., H. Simon, C. Toro, K. Baker, Keith Appel, B. Henderson, A. Eyth, AND D. Luecken. Evaluation of CMAQ Estimated NOx from 2002 to 2016 (2019 CMAS Conference). 2019 CMAS Conference, Chapel Hill, NC, October 21 - 23, 2019.

Pouliot, G., M. Day, K. Baker, M. Beardsley, G. Frost, B. Henderson, S. Hunt, V. Rao, H. Simon, T. Yelverton, AND D. Mobley. Reflecting on Progress since the 2005 NARSTO Emissions Inventory Report. 2019 International Emissions Inventory Conference, Dallas, TX, July 29 - August 02, 2019.

Day, M., G. Pouliot, S. Hunt, K. Baker, M. Beardsley, G. Frost, D. Mobley, H. Simon, B. Henderson, T. Yelverton, AND V. Rao. Reflecting on progress since the 2005 NARSTO emissions inventory report. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION. Air & Waste Management Association, Pittsburgh, PA, 69(9):1023-1048, (2019). https://doi.org/10.1080/10962247.2019.1629363

Simon, H., C. Bray, M. Strum, L. Riddick, M. Menetrez, M. Kosusko, M. Hays, AND V. Rao. Assessment of important SPECIATE profiles in EPA’s emissions modeling platform and current data needs. 2018 AGU Fall Meeting, Washington, DC, December 10 - 14, 2018.

Simon, H., K. Baker, L. Valin, J. Crawford, S. Puesede, J. Kelly, K. Foley, R. Cohen, B. Timin, A. Weinheimer, N. Possiel, C. Owen, C. Misenis, G. Diskin, A. Fried, AND B. Henderson. Characterizing CO and NOy Sources and Relative Ambient Ratios in the Baltimore Area Using Ambient Measurements and Source Attribution Modeling. JOURNAL OF GEOPHYSICAL RESEARCH: ATMOSPHERES. American Geophysical Union, Washington, DC, 123(6):3304-3320, (2018).

Hogrefe, C., H. Simon, P. Dolwick, K. Foley, W. Appel, S. Roselle, AND R. Mathur. Model Evaluation – Progress and Challenges. 2018 Southern California Ozone Research Symposium, Riverside, CA, June 06 - 07, 2018.

Simon, H., B. Henderson, D. Luecken, K. Foley, B. Timin, A. Eyth, AND K. Baker. Ongoing EPA efforts to evaluate modeled NOy budgets. Atmospheric Chemical Mechanisms Conference 2018, Davis, CA, December 05 - 07, 2018.

Bray, C., M. Strum, H. Simon, L. Riddick, Mike Kosusko, AND V. Rao. Assessment of Important SPECIATE Profiles in EPA’s Emissions Modeling Platform and Current Data Gaps. US EPA 2017 International Emissions Inventory Conference, Baltimore, MD, August 14 - 18, 2017.

Bray, C., M. Strum, H. Simon, L. Riddick, Mike Kosusko, AND V. Rao. Assessment of important SPECIATE Profiles in EPA’s Emissions Modeling Platform and Current Data Gaps (US EPA 2017 International Emissions Inventory Conference). 36th AAAR Annual Conference, Raleigh, NC, October 16 - 20, 2017.

Sarwar, G., J. Xing, K. Fahey, K. Foley, David-C Wong, R. Mathur, C. Gan, B. Gantt, AND H. Simon. Dimethylsulfide Chemistry: Annual, Seasonal, and Spatial Impacts on Sulfate. Air Pollution Modeling and its Application XXV. Springer International Publishing AG, Cham (ZG), Switzerland, , 347-352, (2017).

Gantt, B., G. Sarwar, J. Xing, H. Simon, D. Schwede, Bill Hutzell, R. Mathur, AND A. Saiz-Lopez. The Impact of Iodide-Mediated Ozone Deposition and Halogen Chemistry on Surface Ozone Concentrations Across the Continental United States. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 51(3):1458-1466, (2017). https://doi.org/10.1021/acs.est.6b03556

Sarwar, G., J. Xing, K. Fahey, D. Kang, B. Gantt, H. Simon, AND R. Mathur. Dimethylsulfide chemistry: annual, seasonal, and spatial impacts on SO_4^(2-). ITM 2016 Conference, Crete, GREECE, October 03 - 07, 2016.

Sarwar, G., K. Foley, R. Mathur, H. Simon, J. Xing, AND K. Fahey. Halogen Chemistry in the CMAQ Model. 15th Annual CMAS Conference, Chapel Hill, NC, October 24 - 26, 2016.