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Long, R., M. Beaver, R. Williams, K. Kronmiller, AND S. Garvey. Procedures and Concepts of EPA's Ongoing Sensor Evaluation Efforts. EM: AIR AND WASTE MANAGEMENT ASSOCIATION'S MAGAZINE FOR ENVIRONMENTAL MANAGERS. Air & Waste Management Association, Pittsburgh, PA, , 8-9, (2014).

Long, R., M. Beaver, R. Duvall, EricS Hall, AND S. Kaushik. Review of Federal Reference Method for Ozone: Nitric Oxide-Chemiluminescence. CASAC AMMS Teleconference on Federal Reference Method for Ozone: Nitric Oxide-Chemiluminescene, Research Triangle Park, NC, April 03, 2014.

Long, R., M. Beaver, R. Duvall, EricS Hall, AND S. Kaushik. Review of Federal Reference Method for Ozone: Nitric Oxide-Chemiluminescence:Supplemental Material for CASAC AMMS. CASAC AMMS Teleconference on Federal Reference Method for Ozone, Washington, DC, June 12, 2014.

Williams, R., R. Long, M. Beaver, A. Kaufman, F. Zeiger, M. Heimbinder, I. Hang, R. Yap, B. Acharya, B. Ginwald, K. Kupcho, S. Robinson, O. Zaouak, B. Aubert, M. Hannigan, R. Piedrahita, N. Masson, B. Moran, M. Rook, P. Heppner, C. Cogar, N. Nikzad, AND W. Griswold. Sensor Evaluation Report. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-14/143 (NTIS PB2015-100611), 2014.

Williams, R., R. Long, M. Beaver, G. Hagler, Sue Kimbrough, E. Thoma, Bill Mitchell, T. Hanley, J. Rice, S. Garvey, B. Sharpe, W. Jiao, AND K. Kronmiller. Sensor Technology Performance Characteristics- Field and Laboratory Observations. 2014 Air Sensors Workshop, Research Triangle Park, NC, June 09 - 10, 2014.

Williams, R., R. Long, M. Beaver, A. Kaufman, T. Hanley, J. Rice, AND S. Garvey. The State of Sensor Technology and Air Quality Monitoring. Presented at National Environmental Monitoring Conference, Washington, DC, August 04 - 08, 2014.

Beaver, M., K. Kronmiller, R. Duvall, S. Kaushik, T. Morphy, P. King, AND R. Long. Direct and Indirect Methods for the Measurement of Ambient Nitrogen Dioxide. Presented at AWMA Measurement Technologies meeting, Sacramento, CA, November 19 - 21, 2013.

Beaver, M., K. Kronmiller, R. Duvall, S. Kaushik, T. Morphy, P. King, AND R. Long. Direct and Indirect Methods for the Measurement of Nitrogen Dioxide (NO2). Presented at AWMA Measurements Meeting, Sacramento, CA, November 20, 2013.

HALL, ERICS, M. BEAVER, R. W. LONG, AND R. W. VANDERPOOL. EPA's Reference and Equivalent Supporting NAAQS Implementation through Methods Research Program: Research, Development, and Analysis. EM: AIR AND WASTE MANAGEMENT ASSOCIATION'S MAGAZINE FOR ENVIRONMENTAL MANAGERS. Air & Waste Management Association, Pittsburgh, PA, 5(May 2012):8-12, (2012).

CHEN, F., R. W. VANDERPOOL, R. W. WILLIAMS, F. DIMMICK, B. GROVER, R. W. LONG, AND R. MURDOCH. Field Evaluation of Portable and Central Site PM Samplers Emphasizing Additive and Differential Mass Concentration Estimates. ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 45(26):4522-4527, (2011).

LONG, R. W., M. S. LANDIS, K. KRONMILLER, B. D. GROVER, D. J. EATOUGH, R. AL-HORR, AND R. K. STEVENS. (AAAR) - SEMI-CONTINUOUS DETERMINATION OF WATER-SOLUBLE PARTICULATE COMPONENTS AND THEIR GASEOUS PRECURSORS: LABORATORY AND FIELD EVALUATION OF INSTRUMENTATION BASED ON WET WALL DENUDER AND ION CHROMATOGRAPHY TECHNOLOGY . Presented at International Aerosol Conference (AAAR), St. Paul, MN, September 10 - 15, 2006.

GLOVER, B. D., D. J. EATOUGH, W. R. WOOLWINE, J. CANNON, N. L. EATOUGH, R. W. LONG, AND R. A. CARY. CLOSURE BETWEEN SEMI-CONTINUOUS MEASUREMENT OF PM _2.5 MASS AND COMPOSITION. Presented at 99th Air & Waste Management Association Annual Conference, New Orleans, LA, June 20 - 23, 2006.

LONG, R. W., M. S. LANDIS, K. KRONMILLER, B. D. GROVER, D. J. EATOUGH, R. K. STEVENS, AND R. AL-HORR. SEMI-CONTINUOUS DETERMINATION OF WATER-SOLUBLE PARTICULATE COMPONENTS AND THEIR GASEOUS PRECURSORS: LABORATORY AND FIELD EVALUATION OF INSTRUMENTATION BASED ON WET WALL DENUDER AND ION CHROMATOGRAPHY TECHNOLOGY. Presented at AWMA Symposium, Durham, NC, May 09 - 11, 2006.

LONG, R. W. LABORATORY AND FIELD EVALUATION OF INSTRUMENTATION FOR THE SEMI-CONTINUOUS DETERMINATION OF WATER-SOLUBLE PARTICULATE COMPONENTS AND GASES. Presented at University of South Florida, Tampa, FL, May 18, 2005.

WILSON, W. E., B. D. GROVER, N. L. EATOUGH, D. J. EATOUGH, AND R. W. LONG. SEMI-VOLATILE SECONDARY AEROSOLS IN URBAN ATMOSPHERES: MEETING A MEASURED CHALLENGE. Presented at American Association of Aerosol Research 2005, Atlanta, GA, February 07 - 11, 2005.