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Deputy Director, Institute for the Environment; Director, Center for Environmental Modeling for Policy Development
(919) 966-2126
Center for Environmental Modeling for Policy Development


Graduate Students

Jeffrey Rissman, M.S., 2011
Matthew Woody, M.S., 2010; Ph.D. 2014
Scott Boone, M.S., 2015
Pradeepa Vennam, Ph.D., 2016
Chang Shih Ying, Ph.D., 2016
Calvin Arter, Ph.D. Candidate (2016 – Current)
Alejandro Valencia (2017 – Current)
Praful Dodda (2019 – Current)

Professional Focus

Emissions, Air Quality modeling, Atmospheric Chemistry, Aerosols, Health Risk Estimation, Aircraft Emissions, Near-Road Emissions, Near-Port Emissions


ENST 202 (2009)


Developing modeling and analyses methods and applications to support sound environmental policy, focused on air pollution and health risk


Air and Waste Management Association
American Geophysical Union
American Meteorological Society
International Society of Exposure Science
Society of Risk Analysis
Sigma Xi


UNC Duke Energy Foundation Faculty Fellow (2016)

U.S. EPA Scientific and Technological Achievement Award (2014) for “Advancements in Near-Road Dispersion Modeling”

U.S. EPA Blue Ribbon Paper Award (2013) for Contributions in Improving the Simulation of Air Pollution Near Roadways “Estimating near-road pollutant dispersion: a model inter-comparison”

Faculty of the Year (2008), FAA Partnership for Air Transportation Noise and Emissions Reduction (PARTNER) Centers of Excellence Read MIT Citation | Read FAA Citation

U.S. EPA Certificate of Appreciation (1996), (for Contributions to the Evaluation of the Draft Guidance for Using Models to Demonstrate Attainment of the O3 NAAQS), OAQPS

Ozone Transport and Assessment Group (OTAG), Certificate of Appreciation (1996) (for Contribution to Modeling performed for OTAG), Chair, OTAG Policy Decisions Group


2017 – present Research Professor, University of North Carolina at Chapel Hill, NC
2009 – 2017 Research Assoc. Professor, University of North Carolina at Chapel Hill, NC
2003 – 2009 Research Asst. Professor, University of North Carolina at Chapel Hill, NC
1999 – 2002 Research Scientist, MCNC Environmental Programs, RTP, NC
1998 – 1999 Research Scientist, Bureau of Air Quality Planning, NJDEP, Trenton, NJ


Ph.D., Chemical and Biochemical Engineering, Rutgers University, New Brunswick, NJ
M.S., Chemical and Biochemical Engineering, Rutgers University, New Brunswick, NJ
B.Tech., Chemical Engineering, Anna University, India

Selected Publications

Breen, M., S.-Y. Chang, M. Breen, Y. Xu, V. Isakov, S. Arunachalam, M. S. Carraway, and R. Devlin. Fine-Scale Modeling of Individual Exposures to Ambient PM2.5, EC, NOx, CO for the Coronary Artery Disease and Environmental Exposure (CADEE) Study, Atmosphere, (2020), 11(1), 65;

Isakov, V., S. Arunachalam, R. Baldauf, M. Breen, P. Deshmukh, A. Hawkins, S. Kimbrough, S. Krabbe, B. Naess, M Serre, A. Valencia. Combining Dispersion Modeling and Monitoring Data for Community-Scale Air Quality Characterization, Atmosphere, 2019, 10, 610:

Breen, M., C. Seppanen, V. Isakov, S. Arunachalam, M. Breen, J. Samet, H. Tong, Development of TracMyAir Smartphone Application for Predicting Exposures to Ambient PM2.5 and Ozone, Int. J. Environ. Res. Public Health, 2019, 16, 3468; doi:10.3390/ijerph16183468.

Sorte, S., S. Arunachalam, B. Naess, C. Seppanen, V. Rodrigues, A. Valencia, C. Borrego, A. Monteiro (2019), Assessment of source contribution to air quality in an urban area close to a harbor: case-study in Porto, Portugal, Sci. Total Environ, 662, 347 – 360.

The Biomedical Data Translator Consortium (2018). Toward a universal biomedical data translator. Clin. Transl. Sci. 12, 86–90.

The Biomedical Data Translator Consortium (2018). The Biomedical Data Translator program: conception, culture, and community. Clin. Transl. Sci.12, 91–94.

Arunachalam, S., B. Naess, C. Seppanen, A. Valencia, J. Brandmeyer, A. Venkatram, J. Weil, V. Isakov, AND T. Barzyk. A new bottom-up emissions estimation approach for aircraft sources in support of air quality modelling for community-scale assessments around airports. Int. J. Environ. Pollut., 65(123):43 – 58, (2019).

Vennam, L. P.*, Vizuete, W., and Arunachalam, S.: Tracer study to estimate the transport of cruise altitude aviation emissions in Northern Hemisphere (2018), Atmos. Chem. Phys. Discuss., .

Valencia, A., S. Arunachalam, D. Heist, D. Carruthers, and A. Venkatram (2018). Development and Evaluation of the R-LINE Model Algorithms to Account for Chemical Transformation in the Near-road Environment, Transp. Res. Part D: Transp. Environ., 59, 464 – 477.

Vennam, L.P.*, W. Vizuete, K. Talgo, M. Omary, F.S. Binkowski, J. Xing, R. Mathur, S. Arunachalam (2017). Modeled Full Flight Aircraft Emissions on Air Quality, and their Sensitivity to Grid Resolution, J. Geophys. Res., 122.

Isakov, V., T. Barzyk, E. Smith, S. Arunachalam, B. Naess and A. Venkatram (2017). A Web-based Modeling System for Near-Port Air Quality Assessments, Environ. Model. Software, 98:21-34,

Wolfe, M., N. McDonald, S. Arunachalam and A. Valencia (2017). Air Pollution Exposure during School Commutes, J. Transport and Health, 5:S48-S49,

Chang, S.-Y., W. Vizuete, M. Serre, L.P. Vennam, M. Omary, V. Isakov, M. Breen, S. Arunachalam (2017). Finely Resolved On-Road PM2.5 and Estimated Premature Mortality in Central North Carolina, Risk Analysis, DOI: 10.1111/risa.12775.

Penn SL, Boone, S.T., Harvey, B.C., Heiger-Bernays W, Tripodis Y, Arunachalam, S., Levy JI. (2017) Modeling variability in air pollution-related health damages from individual airport emissions, Environ. Res., 156 (2017) 791–800

Penn SL, Arunachalam S, Woody M, Heiger-Bernays W, Tripodis Y, Levy JI. (2017). Estimating state-specific contributions to PM2.5‐ and O3-related health burden from residential combustion and electricity generating unit emissions in the United States. Environ. Health Perspect. 125:324–332;

Woody, M., H.-W. Wong, J.J. West, S. Arunachalam, (2016). Multiscale predictions of aviation-attributable PM2.5 for U.S. airports modeled using CMAQ with plume-in-grid and an aircraft-specific 1-D emission model, Atmos. Environ., 147, 384 – 394.

Levy, J.I., M.K. Woo, S.L. Penn, M. Omary, Y. Tambouret, S. Chung and S. Arunachalam (2016). Carbon Reductions and Health Co-Benefits from U.S. Residential Energy Efficiency Measures, Environ. Res. Lett. 11 (2016) 034017, doi:10.1088/1748-9326/11/3/034017.

Chang, S.-Y, W. Vizuete, V. Isakov, M. Breen, S. Arunachalam (2015). Comparison of Highly Resolved Model-based Exposure Metrics for Traffic-Related Air Pollutants to Support Environmental Health Studies, Int. J. Environ. Res. Public Health, 12, 15605–15625; doi:10.3390/ijerph121215007.

Chang, S.-Y., W. Vizuete, A. Valencia, B. Naess, V. Isakov, T. Palma, M. Breen, S. Arunachalam (2015). A Modeling Framework for Characterizing Near-Road Air Pollutant Concentration at Community Scales, Sci. Total Environ., 538:905-921,

Vennam, L.P., W. Vizuete, S. Arunachalam, (2015). Evaluation of model-predicted Hazardous Air Pollutants (HAPs) near a mid-sized U.S. airport, Atmos. Environ.,119:107-117,

Penn, S., S. Arunachalam, Y. Tripodis, W. Heiger-Bernays, JI Levy (2015). A comparison between monitoring and dispersion modeling approaches to assess the impact of aviation on concentrations of black carbon and nitrogen oxides at Los Angeles International Airport, Sci. Total. Environ, 527-528:47-55,

Arunachalam, S., H. Brantley, T. Barzyk, G. Hagler, V. Isakov, S. Kimbrough, B. Naess, N. Rice, M. Snyder, K. Talgo, A. Venkatram (2015). Assessment of Port-Related Air Quality Impacts: Geographic Analysis of Population, Int. J. Environ. Poll., 58(4):231-250.

Woody, M. C., West, J. J., Jathar, S. H., Robinson, A. L., and Arunachalam, S. (2015): Estimates of non-traditional secondary organic aerosols from aircraft SVOC and IVOC emissions using CMAQ, Atmos. Chem. Phys., 15, 6929-6942.

Barzyk, T.M., V. Isakov, S. Arunachalam, A. Venkatram, R. Cook, B. Naess (2015). A Near-Road Modeling System for Community-Scale Assessments of Mobile-Source Air Toxics: The Community Line Source (C-LINE) Modeling System, Environ. Model. Software, 66:46-56.

Batterman S, Ganguly R, Isakov V, Burke, J., Arunachalam, S., Snyder, M., Robins, T., and Lewis, T. (2014). Dispersion Modeling of Traffic-Related Air Pollutant Exposures and Health Effects Among Children with Asthma in Detroit, Michigan. Transportation Research Record. 2014; 2452: 105–112. doi:10.3141/2452-13.

Snyder, M.; Arunachalam, S.; Isakov, V.; Talgo, K.; Naess, B.; Valencia, A.; Omary, M.; Davis, N.; Cook, R.; Hanna, A. (2014). Creating Locally Resolved Mobile-Source Emissions Inputs for Air Quality Modeling in Support of an Exposure Study in Detroit, Michigan, USA. Int. J. Environ. Res. Public Health, 11, 12739-12766, doi:10.3390/ijerph111212739.

Arunachalam, S.; Valencia, A.; Akita, Y.; Serre, M.; Omary, M., Garcia, V.; Isakov, V. (2014). Estimating Regional Background Air Quality using Space/Time Ordinary Kriging to Support Exposure Studies. Int. J. Environ. Res. Public Health, 11(10), 10518-10536; doi:10.3390/ijerph111010518.

Isakov, V.; Arunachalam, S.; Batterman, S.; Bereznicki, S.; Burke, J.; Dionisio, K.; Garcia, V.; Heist, D.; Perry, S.; Snyder, M.; Vette, A. (2014). Air Quality Modeling in Support of the Near-Road Exposures and Effects of Urban Air Pollutants Study (NEXUS) Int., J. Environ. Res. Public Health, 11(9), 8777-8793; doi:10.3390/ijerph110908777.

Brunelle-Yeung E, T Masek, JJ Rojo, JI Levy, S Arunachalam, SM Miller, SE Barrett, S Kuhn, IA Waitz (2014) Methods for Assessing the Impacts of Aviation Environmental Policies on Public Health, Transport Policy, 34:21-28, DOI: 10.1016/j.tranpol.2014.02.015.

Rissman, J., S. Arunachalam, T. Bendor and J.J. West (2013). Equity and Health Impacts of Aircraft Emissions at the Hartsfield-Jackson Atlanta International Airport, Landscape and Urban Planning, 120, 234-247.

Rissman, J., Arunachalam, S., Woody, M., West, J. J., BenDor, T., and Binkowski, F. S. (2013). A plume-in-grid approach to characterize air quality impacts of aircraft emissions at the Hartsfield-Jackson Atlanta International Airport, Atmos. Chem. Phys., 13, 9285-9302.

Woody, M., and S. Arunachalam (2013). Secondary organic aerosol produced from aircraft emissions at the Atlanta Airport: An advanced diagnostic investigation using process analysis, Atmos. Environ., 76:101-109,

Ashok, A., I.H. Lee, S. Arunachalam, I. A. Waitz, S.H.L. Yim, R.H. Barrett, (2013). Development of a response surface model of aviation’s air quality impacts in the U.S. Atmos. Environ., 77:445-452,

Heist, D., V. Isakov, S. Perry, M. Snyder, A. Venkatram, C. Hood, J. Stocker, D. Carruthers, S. Arunachalam and C. Owen (2013). Estimating near-road pollutant dispersion: a model inter-comparison Transportation Research, Part D., 25:93-105

Levy, J. I., Woody, M., Baek, B. H., Shankar, U. and Arunachalam, S. (2012), Current and Future Particulate-Matter-Related Mortality Risks in the United States from Aviation Emissions During Landing and Takeoff, Risk Analysis, 32(2):237-249.

Barrett, S., S. Yim, C. Gilmore, L.T. Murray, S. Kuhn, A. Tai, R. Yantosca, D. Byun, F. Ngan, X. Li, J. Levy, A. Ashok, J. Koo, H.M. Wong, O. Dessens, S. Balasubramanian, G. Fleming, M. Pearlson, C. Wollersheim, R. Malina, S. Arunachalam, F. Binkowski, E. Leibensperger, D. J.

Jacob, J. Hileman, and I. Waitz (2012). Public Health, Climate and Economic Impacts of Desulfurizing Jet Fuel. Environ. Sci. & Tech., 46, 4275-4282,

Aneja, V. P., A. Aiyyer, A. Hanna, U. Shankar, Z. Adelman, S. Arunachalam, S. T. Rao, R. Mathur, J.D. Mobley, V. Ramaswamy, V.M. Krishna, V. Manickam, M.P. Singh, J. Biswas and E. Upadhyay, (2012). U.S.-India Collaboration on Air Quality and Climate Research and Education. Environmental Manager, Publication Date (Web): 01 Mar 2012

Arunachalam, S., Wang, B., Davis, N., Baek, B.H., Levy, JI, (2011). Effect of Chemistry-Transport Model Scale and Resolution on Population Exposure to PM2.5 from Aircraft Emissions during Landing and Takeoff, Atmos. Environ., 45(19):3294-3300.

Anenberg, S. C., Talgo, K., Arunachalam, S., Dolwick, P., Jang, C., and West, J. J. (2011). Impacts of global, regional, and sectoral black carbon emission reductions on surface AQ and human mortality, Atmos. Chem. Phys., 11, 7253-7267, DOI:10.5194/acp-11-7253-2011.

Woody, M., B.H. Baek, Z. Adelman, M. Omary, Y.-F. Lam, J. West and S. Arunachalam (2011). An Assessment of Aviation Contribution to Current and Future Fine Particulate Matter in the United States, Atmos. Environ., 45 (20):3424-3433, DOI: 10.1016/j.atmosenv.2011.03.041

De Nazelle, A., S. Arunachalam and M. Serre (2010) Bayesian Maximum Entropy Integration of Ozone Observations and Model Predictions in a Spatiotemporal Regulatory Context: An Application for Attainment Demonstration in NC, Environ. Sci. & Tech., 44, 5707–5713.

Binkowski, F., S. Arunachalam, Z. Adelman and J.P. Pinto (2007) Examining Photolysis Rates with a Prototype On-line Photolysis Module in CMAQ, J. Applied Meteorol. Clim., 2007, 46:1252-1256.

Arunachalam, S., A. Holland, B. Do, and M. Abraczinskas (2006) A Quantitative Assessment of the Influence of Grid Resolution on Predictions of Future-Year Air Quality in North Carolina, USA, Atmos. Environ., 40(26):5010-5016

Mathur, R., U. Shankar, A.F. Hanna, M.T. Odman, J.N. McHenry, C.J. Coats, K. Alapaty, A. Xiu, S. Arunachalam, D. Olerud, D.W. Byun, K.L. Schere, F.S. Binkowski, J. K. Ching, R.L. Dennis, T.E. Pierce, J.E. Pleim, S.J. Roselle, and J.O. Young, (2005). The Multiscale Air Quality Simulation Platform (MAQSIP): Initial Applications and Performance for Tropospheric O3 and Particulate Matter, J. Geophys. Res., 110, D13308, doi:10.1029/2004JD004918.

McHenry, J.N., W.F. Ryan, N.L. Seaman, C.J. Coats, J. Pudykiewicz, S. Arunachalam, and J.M. Vukovich, (2004). A Real-time Eulerian Photochemical Model Forecast System: Overview and Initial O3 Forecast Performance in the Northeastern U.S. corridor, Bull. Amer. Meteor. Soc., 85, pp. 525-548.

Selected Recent Technical Reports

Batterman, S., V. Berrocal, C. Milando, S. Arunachalam and K. Max Zhang (2017). Enhancing Models and Measurements of Traffic-Related Air Pollutants for Health Studies Using Dispersion Modeling and Bayesian Fusion, Final Report prepared for the Health Effects Institute, Boston, MA, September 2017.

Advanced Vehicle Concepts and Implications for NextGen, NASA/CR — 2010 – 216397, prepared for NASA Ames Research Center, Moffet Field, CA, January 2010. Available at:

TRB’s Airport Cooperative Research Program (ACRP) Report 71, 2011: Guidance for Quantifying the Contribution of Airport Emissions to Local Air Quality, Available at:

Phase III of the LAX Air Quality and Source Apportionment Study, Final Report Prepared for the Los Angeles World Airports (LAWA), June 2013, Available at:

Development, Implementation and Validation of a Near-Road Air Quality Model for Bogota, Colombia, Final Report prepared for La Secretaria Distrital de Ambiente with the Universidad de La Salle, October 2014.

TRB’s Airport Cooperative Research Program (ACRP) Report 179, 2017: Dispersion Modeling Guidance for Airports Addressing Local Air Quality Health Concerns, Available at:

Conference Presentations / Proceedings: (> 150)