DRI / DIRECTORY / MARC PITCHFORD
Marc Pitchford Profile Photo
Dr. Marc Pitchford
Research Professor

Professional Interests

Dr. Pitchford has been involved in air quality monitoring and assessment research since 1974.In particular his interests and experience has been in leading technical teams responsible for the design and management of extensive aerosol and visibility monitoring studies and networks.Among his achievements is the design and oversight of the IMPROVE aerosol and visibility monitoring network which started with 20 sites in 1986 and continues to operate over 160 sites nationwide; the design and technical leadership of Project MOHAVE (1991 1996) and the BRAVO Study (1997 2004), both involved extensive field monitoring programs with ambient measurements and tracer release and monitoring followed by deterministic and receptor modeling for source attribution; and co-technical leader of the EPA PM Super Sites program that funded five university research partnerships to develop and operate sophisticated aerosol monitoring sites various urban areas. Dr. Pitchford has also acted as a visibility subject matter expert adviser to the US Environmental Protection Agency for the development and implementation of policy for visibility protection of national parks and wilderness areas, and for the review/revisions of the Secondary Particulate Matter National Ambient Air Quality Standards.

Research Areas

  • Meteorology
  • Air Quality

Education

Degree Year Institution Area
Ph.D. 1992 University of Nevada, Reno Physics
M.S. 1974 University of Nevada, Reno Atmospheric Physics
B.S. 1971 Wisconsin State University-Oshkosh Physics

Professional Activities and Memberships

  • Interagency Monitoring of Protected Visual Environments (IMPROVE) Chair, Steering Committee (1985 2011)
  • USDA Agriculture Air Quality Task Force Member (2004 2006)
  • Western Regional Air Partnership (WRAP) – Chair, Ambient Monitoring and Reporting Forum (1997 2006)
  • Central States Regional Air Partnership (CenRAP) – Monitoring Workgroup member (2002 2009)
  • Regional Planning Organizations, Technical Coordination – Co-chair, Data Analysis and Monitoring Committee (2002 2009)
  • Columbia River Gorge Air Quality Study Technical Advisory Committee Member (2003 2009)
  • Air and Waste Management Association Member (1980 present)
  • International Air Quality Advisory Board to the International Joint Commission (U.S. and Canada) – Technical Advisory Panel Member (2003 2006)

Keywords

atmospheric visibility, remote area air quality, IMPROVE, urban visibility

 

Publications
2015
Cheng, Z., Jiang, J., Chen, C., Gao, J., Wang, S., Watson, J. G., Wang, H., Deng, J., Wang, B., Zhou, M., Chow, J. C., Pitchford, M. L., Hao, J. (2015). Estimation of Aerosol Mass Scattering Efficiencies under High Mass Loading: Case Study for the Megacity of Shanghai, China, Environ. Sci. Technol., 49, 831-838

So, R., Vingarzan, R., Jones, K., Pitchford, M. L. (2015). Modeling of time-resolved light extinction and its applications to visibility management in the Lower Fraser Valley of British Columbia, Canada, J. Air & Waste Manage. Assoc., 65 (6), 707-720

2014
Hand, J. L., Schichtel, B. A., Malm, W. C., Pitchford, M. L., Frank, N. H. (2014). Spatial and seasonal patterns in urban influence on regional concentrations of speciated aerosols across the United States, J. Geophys. Res.: Atmos., 119 (22), 12832-12839, 10.1002/2014JD022328

Hand, J., Schichtel, B., Malm, W., Copeland, S., Molenar, J., Frank, N., Pitchford, M. L. (2014). Widespread reductions in haze across the United States from the early 1990s through 2011, Atmospheric Environment, 94, 671-679, 10.1016/j.atmosenv.2014.05.062
://WOS:000340316300071

2012
Hand, J. L., Schichtel, B. A., Malm, W. C., Pitchford, M. L., Frank, N. H. (2012). Seasonal composition of remote and urban fine particulate matter in the United States, J. Geophys. Res., 117 (D05209), Online, 10.1029/2011JD017122.

Hand, J. L., Schichtel, B. A., Malm, W. C., Pitchford, M. L. (2012). Particulate sulfate ion concentration and SO2 emission trends in the United States from the early 1990s through 2010, Atmos. Chem. Phys., 12, 10353-10365, 10.5194/acp-12-10353-2012

Schichtel, B. A., Rodriguez, M. A., Barna, M. G., Gebhart, K. A., Pitchford, M. L., Malm, W. C. (2012). A semi-empirical, receptor-oriented Lagrangian model for simulating fine particulate carbon at rural sites, Atmos. Environ., 61, 361-370

White, W. H., Farber, R. J., Malm, W. C., Nuttall, M., Pitchford, M. L., Schichtel, B. A. (2012). Comment on “Effect of coal-fired power generation on visibility in a nearby National Park (Therhorst and Berkman, 2010)”, Atmos. Environ., 55, 173-178

2011
Hand, J. L., Copeland, S. A., McDade, C. E., Day, D. E., Moore, C. T., Dillner, A. M., Pitchford, M. L., Indresand, H., Schichtel, B. A., Malm, W. C., Watson, J. G. (2011). Spatial and seasonal patterns and temporal variability of haze and its constituents in the United States, IMPROVE Report V, Cooperative Institute for Research in the Atmosphere

Murphy, D. M., Chow, J. C., Leibensperger, E. M., Malm, W. C., Pitchford, M. L., Schichtel, B. A., Watson, J. G., White, W. H. (2011). Decreases in elemental carbon and fine particle mass in the United States, Atmos.Chem.Phys., 4679-4686

2009
Kavouras, I. G., Etyemezian, V. R., DuBois, D. W., Xu, J., Pitchford, M. L. (2009). Source reconciliation of atmospheric dust causing visibility impairment in Class I areas of the western United States, J. Geophys. Res. – Atmospheres, 114 (D2), 10.1029/2008JD009923

2007
Etyemezian, V. R., Nikolich, G., Ahonen, S. M., Pitchford, M. L., Sweeney, R., Purcell, J., Gillies, J. A., Kuhns, H. D. (2007). The Portable In Situ Wind Erosion Laboratory (PI-SWERL): A new method to measure PM10 windblown dust properties and potential for emissions, Atmos. Environ., 41 (18), 3789-3796, 10.1016/j.atmosenv.2007.01.018

Kavouras, I. G., Etyemezian, V. R., Xu, J., DuBois, D. W., Green, M. C., Pitchford, M. L. (2007). Assessment of the local windblown component of dust in the western United States, J. Geophys. Res, 112 (D08211), 10.1029/2006JD007832

Malm, W. C., Pitchford, M. L., McDade, C., Ashbaugh, L. L. (2007). Coarse particle speciation at selected locations in the rural continental United States, Atmos. Environ., 41 (10), 2225-2239

Pitchford, M. L., Malm, W. C., Schichtel, B., Kumar, N., Lowenthal, D. H., Hand, J. (2007). Revised algorithm for estimating light extinction from IMPROVE particle speciation data, J. Air & Waste Manage. Assoc., 57, 1326-1336

Pitchford, M. L., Malm, W., Schichtel, B., Kumar, N., Lowenthal, D. H., Hand, J. (2007). Revised Algorithm for Estimating Light Extinction from IMPROVE Particle Speciation Data, J. Air Waste Manage. Assoc., 57 (11), 1326-1336

2006
Kavouras, I. G., Xu, J., Etyemezian, V. R., DuBois, D. W., Green, M. C., Pitchford, M. L. (2006). Contributions of dust and smoke on aerosol extinction coefficient, Eos Trans AGU, 87 (52)

Xu, J., DuBois, D. W., Pitchford, M. L., Green, M. C., Etyemezian, V. R. (2006). Attribution of Sulfate Aerosols in Federal Class 1 Areas of the Western United States Based on Trajectory Regression Analysis, Atmos Environ, 40, 3433-3447

2003
Etyemezian, V. R., Kuhns, H. D., Gillies, J. A., Green, M. C., Pitchford, M. L., Watson, J. G. (2003). Vehicle-Based Road Dust Emissions Measurement (I): Methods and Calibration, Atmos. Environ., 37, 4559-4571

Etyemezian, V. R., Kuhns, H. D., Gillies, J. A., Chow, J. C., Green, M. C., Hendrickson, K., McGown, M., Pitchford, M. L. (2003). Vehicle based road dust emissions measurement (III): Effect of speed, traffic volume, location, and season on PM10 road dust emissions, Atmos. Environ., 37, 4583-4593

Green, M. C., Kuhns, H. D., Pitchford, M. L., Dietz, R., Ashbaugh, L. L., Watson, T. (2003). Application of the Tracer-Aerosol Gradient Interpretive Technique (TAGIT) to sulfur attribution for the Big Bend Regional Aerosol and Visibility Observational (BRAVO) Study, J. Air & Waste Manage. Assoc.

2002
Kuhns, H. D., Etyemezian, V. R., Green, M. C., Hendrickson, K., McGown, M., Barton, K., Pitchford, M. L. (2002). Vehicle-based road dust emissions measurement (II): Effects of precipitation, wintertime road sanding, and street sweepers on PM10 fugitive dust emissions from paved and unpaved roads, Atmos. Environ.

2001
Kuhns, H. D., Etyemezian, V. R., Landwehr, D., Macdougall, C. S., Pitchford, M. L., Green, M. C. (2001). Testing Re-entrained Aerosol Kinetic Emissions from Roads (TRAKER): A new approach to infer silt loading on roadways, Atmos. Environ., 35 , 2815-2825

2000
Pitchford, M. L., Green, M. C., Kuhns, H. D., Farber, R. J. (2000). Characterization of regional transport and dispersion using Project MOHAVE tracer data, J. Air & Waste Manage. Assoc., 50 (5), 733-745

1999
Kuhns, H. D., Green, M. C., Pitchford, M. L., Vasconcelos, L., White, W. H., Mirabella, V. (1999). Attribution of particulate sulfur in the Grand Canyon to specific point sources using Tracer-Aerosol Gradient Interpretive Technique (TAGIT), J. Air Waste Manage. Assoc., 49 (8), 906-915

1998
Watson, J. G., Chow, J. C., Moosmüller, H., Green, M. C., Frank, N., Pitchford, M. L. (1998). Guidance for using continuous monitors in PM 2.5 monitoring networks
http://www.epa.gov/ttn/amtic/pmpolgud.html

1997
Pitchford, M. L., Chow, J. C., Watson, J. G., Moore, C., Campbell, D., Eldred, R., Vanderpool, R., Ouchida, P., Hering, S., Frank, N. (1997). Prototype PM 2.5 federal reference method field studies report – An EPA staff report
http://www.epa.gov/ttn/amtic/pmfrm.html

Watson, J. G., Chow, J. C., DuBois, D. W., Green, M. C., Frank, N., Pitchford, M. L. (1997). Guidance for network design and optimal site exposure for PM 2.5 and PM 10
http://www.epa.gov/ttn/amtic/files/ambient/pm25/network/r-99-022.pdf

1993
Watson, J. G., Green, M. C., Hoffer, T. E., Lawson, D., Eatough, D., Farber, R., Malm, W., McDade, C., Pitchford, M. L. (1993). Project MOHAVE data analysis plan, In Proceedings, 86th Annual Meeting of the Air & Waste Management Association, Air & Waste Management Association: Pittsburgh, PA

1990
Mathai, C., Watson, J. G., Rogers, C. F., Chow, J. C., Tombach, I., Zwicker, J., Cahill, T., Feeney, P., Eldred, R., Pitchford, M. L., Mueller, P. (1990). Intercomparison of ambient aerosol samplers used in western visibility and air quality studies, Environ. Sci. Technol, 24 (7), 1090-1099

1988
Trijonis, J., McGown, M., Pitchford, M. L., Blumenthal, D., Roberts, P., White, W., Macias, E., Weiss, R., Waggoner, A., Watson, J. G., Chow, J. C., Flocchini, R. (1988). The RESOLVE project: Visibility conditions and causes of visibility degradation in the Mojave desert of California

1987
Trijonis, J., Pitchford, M. L., McGown, M., Blumenthal, D., Dodson, T., Flocchini, R., Kelso, R., Knuth, W., Macias, E., Gara, J., Pitchford, A., Smith, T., Waggoner, A., Watson, J. G., Weiss, R., White, W. (1987). Preliminary extinction budget results from the RESOLVE program, In Transactions, Visibility Protection: Research and Policy Aspects, 872-883, Air & Waste Management Association: Pittsburgh, PA

1983
Hansen, D., Watson, J. G., Bhardwaja, P., Farber, R., Kelso, R., Malm, W., Mueller, P., Pitchford, M. L., Wilson, W. (1983). The SCENES: A major air quality and visibility research study in the southwestern United States, Air & Waste Management Association: Pittsburgh, PA

Other
2007
Etyemezian, V. R., Kuhns, H. D., Pitchford, M. L., Ahonen, S., Nikolich, G. (2007). Wind shear inducing soil stability measuring device, U.S. Patent Office, January 2, 2007, No. 7,155,966 B1