Office of Research and Development Publications

Clements, A., S. Reece, T. Conner, AND R. Williams. Observed Data Quality Concerns Involving Low-Cost Air Sensors. Atmospheric Environment: X. Elsevier B.V., Amsterdam, Netherlands, 3:100034, (2019). https://doi.org/10.1016/j.aeaoa.2019.100034

Williams, R., S. Reece, A. Clements, AND T. Conner. Performance comparison of three low cost particulate matter sensors in an ambient environment. 2019 National Environmental Monitoring Conference (NEMC), FL, Jacksonville, August 05 - 09, 2019.

Conner, T., Sue Kimbrough, R. Williams, B. Johns, J. White, AND G. Hagler. EPA’s Village Green Sensor-Based Air Monitoring Stations: Long-term Performance of PM2.5 Sensors. 2018 International Aerosol Conference, St Louis, MO, September 02 - 07, 2018.

Clements, A., M. Srivastava, T. Conner, J. Rice, A. Habel, S. Reece, AND R. Williams. Field Performance Evaluation of Four Low-Cost Particulate Matter Sensors (Air Sensor International Conference). Air Sensor International Conference, Davis, CA, September 12 - 14, 2018.

Conner, T., A. Clements, R. Williams, M. Srivastava, AND A. Kaufman. Macro Analysis Tool - MAT. U.S. Environmental Protection Agency, Washington, DC, 2018.

Williams, R., Vasu Kilaru, T. Conner, A. Clements, M. Colon, M. Breen, J. Bash, R. Duvall, Jim Szykman, M. Landis, P. Solomon, S. Kaushik, D. Holland, R. Callan, G. Hagler, Sue Kimbrough, B. Gullett, A. Holder, A. Kaufman, S. Reece, AND S. Feinberg. New Paradigm for Air Pollution Monitoring: Emerging Sensor Technologies 2014-2018 Progress Report. To be Presented at ACE Webinar, Research Triangle Park, NC, April 30, 2018.

Williams, R., T. Conner, A. Clements, V. Foltescu, V. Nthusi, J. Jabbour, D. Nash, J. Rice, A. Kaufman, A. Rourk, AND M. Srivastava. Performance Evaluation of the United Nations Environment Programme Air Quality Monitoring Unit. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-17/171, 2017.

Conner, T., L. Černikovský, J. Novák, AND R. Williams. Source apportionment with uncertainty estimates of fine particulate matter in Ostrava, Czech Republic using Positive Matrix Factorization. Atmospheric Pollution Research. Turkish National Committee for Air Pollution Research and Control, Izmir, Turkey, 7(3):503-512, (2016).

Conner, T., L. Cernikovsky, J. Novak, H. Placha, B. Krejci, I. Nikolova, E. Chalupníckova, AND R. Williams. An investigation of local and regional sources of fine particulate matter in the Ostrava,the Czech Republic. Atmospheric Pollution Research. Turkish National Committee for Air Pollution Research and Control, Izmir, Turkey, 6(3):454-463, (2015).

Conner, T., L. Cernikovsky, J. Novak, AND R. Williams. Source apportionment with uncertainty estimates of PM2.5 in Ostrava, Czech Republic using Positive Matrix Factorization. 2015 European Aerosol Conference, Milan, ITALY, September 10, 2015.

Willis, R., L. Cernikovsky, T. Conner, J. Novak, H. Placa, B. Krejei, I. Nikolova, E. Chalupniekova, AND R. Williams. Identifying the Sources Contributing to PM Exceedances in Ostrava, Czech Republic, Using Passive Aerosol Sampling Coupled with Computer-Controlled Microscopy. Presented at Dust 2014 International Conference on Atmospheric Dust, Castellaneta Marina, ITALY, June 01 - 06, 2014.

Cernikovsky, L., J. Novak, H. Placa, B. Krejci, I. Nikolova, E. Chalupnickova, T. Conner, G. Norris, K. Kovalcik, D. Olson, J. Turlington, C. Croghan, R. Willis, AND R. Williams. The Impact of Select Pollutant Sources on Air Quality and the Moravian-Silesian Metropolitan Region by the Positive Matrix Factorization Model. Presented at 2013 European Aerosol Conference, Prague, CZECH REPUBLIC, September 01 - 06, 2013.

WATKINS, T. H., F. DIMMICK, D. M. HOLLAND, T. L. CONNER, A. GILLILAND, V. BOOTHE, C. PAULU, AND A. SMITH. AIR QUALITY CHARACTERIZATION OF ENVIRONMENTAL PUBLIC HEALTH TRACKING. Presented at 28th NATO/CMMS International Technical Meeting, Leipzig, GERMANY, May 16 - 19, 2006.

WILLIS, R., D. LEITH, T. MERRIFIELD, J. WAGNER, G. CASUCCIO, C. COWLEY, T. L. CONNER, AND T. PETERS. EVALUATION OF PM ₁₀, PM _2.5 AND PM _10-2.5 MEASUREMENTS USING A PASSIVE PARTICULATE SAMPLER. Presented at Symposium on Air Quality Measurement Methods and Technology, Durham, NC, May 09 - 11, 2006.

LEITH, D., T. MERRIFIELD, R. WILLIS, T. L. CONNER, M. BOUNDY, J. WAGNER, G. CASUCCIO, AND T. PETERS. PASSIVE AEROSOL SAMPLER FOR PM _10-2.5. Presented at Symposium on Air Quality Measurement Methods and Technology, Durham, NC, May 09 - 11, 2006.

Conner, T L. AND R W. Williams. IDENTIFICATION OF POSSIBLE SOURCES OF PARTICULATE MATTER IN THE PERSONAL CLOUD USING SEM/EDX. ATMOSPHERIC ENVIRONMENT 38(31):5305-5310, (2004).

VALLERO, D. A., T. L. CONNER, AND R. HIGHSMITH. IDENTIFYING HIGH PRIORITY EXPOSURE RESEARCH SUPPORTING THE EPA ASBESTOS ACTION PLAN. Presented at Asbestos Site Evaluation Communication and Cleanup, Tampa, FL, December 08 - 10, 2004.

Solomon, P A., T G. Ellestad, T L. Conner, R B. Zweidinger, M. Harmon, T. Hanley, L. Byrd, R. Scheffe, R. W. Vanderpool, R. Murdoch, S. Natarajan, C. A. Noble, J. Ambs, G. Sem, AND J. Tisch. DETERMINING COARSE PARTICULATE MATTER CONCENTRATIONS: A PERFORMANCE EVALUATION OF CANDIDATE METHODOLOGIES UNDER WINTERTIME CONDITIONS. Presented at American Association for Aerosol Research, Anaheim, CA, October 20-24, 2003.

Vanderpool, R. W., R. Murdoch, S. Natarajan, C. A. Noble, P A. Solomon, T G. Ellestad, T L. Conner, R B. Zweidinger, M K. Harmon, T. Hanley, L. Byrd, R. Scheffe, J. Ambs, G. Sem, AND J. Tisch. DETERMINING COARSE PARTICULATE MATTER CONCENTRATIONS: A PERFORMANCE EVALUATION OF CANDIDATE METHODOLOGIES - STUDY DESIGN AND RESULTS FROM THE RTP EQUIPMENT SHAKEDOWN. Presented at Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 31-April 4, 2003.

Wallace, L A., R W. Williams, J C. Suggs, L S. Sheldon, R B. Zweidinger, A W. Rea, A F. Vette, K W. Leovic, G A. Norris, M S. Landis, C. Stevens, T L. Conner, C. Rhodes, P. A. Lawless, J. Thornburg, L. J. Sally, R. Allen, D. Kalman, J. Kaufman, J. Koenig, T. Larson, T. Lumley, L. Sheppard, K. Brown, J. Sarnat, H. H. Suh, A. Wheeler, P. Koutrakis, M. Lippman, AND M. Kendall. EXPOSURES OF HIGH RISK SUB-POPULATION TO PARTICLES. Presented at International Society of Exposure Analysis, Stresa, Italy, September 21-25, 2003.

Willis, R. D. AND T L. Conner. GUIDELINES FOR THE APPLICATION OF SEM/EDX ANALYTICAL TECHNIQUES FOR FINE AND COARSE PM SAMPLES. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-02/070 (NTIS PB2004-100988), 2003.

Conner, T L. AND R W. Williams. INDIVIDUAL PARTICLE ANALYSIS OF PERSONAL SAMPLES FROM THE 1998 BALTIMORE PARTICULATE MATTER STUDY. Presented at Atmospheric Sciences, Exposure and Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 31-April 4, 2003.

Solomon, P A., T G. Ellestad, T L. Conner, R B. Zweidinger, M K. Harmon, R. W. Vanderpool, B. Murdoch, S. Natarajan, C. A. Noble, L. Byrd, T. Hanley, AND R. Scheffe. PRELIMINARY RESULTS OF EPA'S PERFORMANCE EVALUATION OF FEDERAL REFERENCE METHODS AND FEDERAL EQUIVALENT METHODS FOR COARSE PARTICULATE MATTER. Presented at Particulate Matter: Atmospheric Sciences, Exposure and the Fourth Colloquium on PM and Human Health, Pittsburgh, PA, March 31-April 4, 2003.

Lewis, C W., G A. Norris, T L. Conner, AND R. C. Henry. SOURCE APPORTIONMENT OF PHOENIX PM2.5 AEROSOL WITH THE UNMIX RECEPTOR MODEL. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION 53(3):325-338, (2003).

Mamane, Y., R. D. Willis, AND T L. Conner. EVALUATION OF COMPUTER-CONTROLLED SCANNING ELECTRON MICROSCOPY APPLIED TO AN AMBIENT URBAN AEROSOL SAMPLE. AEROSOL SCIENCE AND TECHNOLOGY 34(1):97-107, (2001).

Willis, R. D., W. D. Ellenson, AND T L. Conner. IDENTIFICATION OF FMC EMISSION SOURCES CONTRIBUTING TO AMBIENT PM10 ON THE FORT HALL RESERVATION. Presented at Pacific Northwest Tribal Air Network Quarterly Meeting, Pocatello, ID, August 9-10, 2001.

Conner, T L., G A. Norris, M S. Landis, AND R W. Williams. INDIVIDUAL PARTICLE ANALYSIS OF INDOOR, OUTDOOR, AND COMMUNITY SAMPLES FROM THE 1998 BALTIMORE PARTICULATE MATTER STUDY. ATMOSPHERIC ENVIRONMENT 35(23):3935-3946, (2001).

Willis, R. D., W. D. Ellenson, AND T L. Conner. MONITORING AND SOURCE APPORTIONMENT OF PARTICULATE MATTER NEAR A LARGE PHOSPHORUS PRODUCTION FACILITY. JOURNAL OF THE AIR & WASTE MANAGEMENT ASSOCIATION 51(8):1142-1166, (2001).

Williams, R W., L A. Wallace, J C. Suggs, E G. Evans, J P. Creason, V R. Highsmith, L S. Sheldon, A W. Rea, A F. Vette, R B. Zweidinger, K W. Leovic, G A. Norris, M S. Landis, C HowardReed, C Stevens, T L. Conner, C. E. Rodes, P. A. Lawless, J. Thornburg, L. S. Liu, D. Kalman, J. Kaufman, J. Q. Koenig, T. L. Larson, T. Lumley, L. Sheppard, K. Brown, H. Suh, A. Wheeler, D. Gold, P. Koutrakis, AND M. Lippmann. PRELIMINARY PARTICULATE MATTER MASS CONCENTRATIONS ASSOCIATED WITH LONGITUDINAL PANEL STUDIES "ASSESSING HUMAN EXPOSURES OF HIGH RISK SUBPOPULATIONS TO PARTICULATE MATTER". U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-01/086 (NTIS PB2002-100444), 2001.

Conner, T L., G A. Norris, R W. Williams, AND M S. Landis. CHEMICAL AND PHYSICAL CHARACTERISTICS OF OUTDOOR, INDOOR, AND PERSONAL PARTICULATE AIR SAMPLES COLLECTED IN AND AROUND A RETIREMENT FACILITY. Presented at EPA/AWMA International Symposium on the Measurement of Toxic and Related Air Pollutants, Research Triangle Park, NC, September 12-14, 2000.

Conner, T L., G A. Norris, M S. Landis, AND R W. Williams. CHEMICAL AND PHYSICAL CHARACTERIZATION OF INDOOR, OUTDOOR, AND PERSONAL SAMPLES COLLECTED IN AND AROUND A RETIREMENT FACILITY. Presented at EPA/AWMA International Symposium on the Measurement of Toxic and Related Air Pollutants, Research Triangle Park, NC, September 12-14, 2000.

Willis, R. D., Y. Mamane, AND T L. Conner. EVALUATION OF COMPUTER-CONTROLLED SCANNING ELECTRON MICROSCOPY APPLIED TO AN AMBIENT URBAN AEROSOL SAMPLE. Presented at PM 2000 AWMA Conference, Charleston, SC, January 24-28, 2000.

Conner, T L., G A. Norris, M S. Landis, AND R W. Williams. INDIVIDUAL PARTICLE ANALYSIS OF INDOOR, OUTDOOR, AND PERSONAL SAMPLES FROM THE 1998 BALTIMORE RETIREMENT HOME STUDY. Presented at PM 2000 AWMA Conference, Charleston, SC, January 24-28, 1999.

Conner, T L., G A. Norris, M S. Landis, AND R W. Williams. RETIREMENT FACILITY. Presented at EPA/AWMA International Symposium on the Measurement of Toxic and Related Air Pollutants, Research Triangle Park, NC, September 12-14, 2000.

Norris, G A., T L. Conner, M S. Landis, AND R B. Zweidinger. CHARACTERIZATION OF PARTICULATE MATTER FROM PHOENIX, ARIZONA, USING RAY FLUORESCENCE AND COMPUTER-CONTROLLED SCANNING ELECTRON MICROSCOPY. Presented at Third Colloquium on Particulate Matter and Human Health, Chapel Hill, NC, June 6-8, 1999.