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Williams, R. Emerging Air Quality Technologies. Presented at RTP's Speaker's Bureau invited presentation to Durham Kiwanis, RTP, NC, October 24, 2013.

Johnson, M., G. Mallach, R. Kulka, R. Dietz, T. Sullivan, M. Gibson, L. Wallace, H. Ozkaynak, R. Williams, A. Wheeler, AND K. Ryswyk. Factors influencing indoor air quality in an urban high rise apartment building (retitled as "Air Pollution and air exchange in an urban high rise apartment building"). Presented at 2013 ISEE/ISES, Basel, SWITZERLAND, August 19 - 23, 2013.

WILLIAMS, R. W., C. W. CROGHAN, AND P. B. RYAN. Human Exposures to PAHs: an Eastern United States Pilot Study. ENVIRONMENTAL MONITORING AND ASSESSMENT. Springer, New York, NY, 185(1):1011-1023, (2013).

Isaacs, K., J. Burke, L. Smith, AND R. Williams. Identifying Housing and Meteorological Conditions Influencing Residential Air Exchange Rates in the DEARS and RIOPA Studies: Development of Distributions for Human Exposure Modeling. Journal of Exposure Science and Environmental Epidemiology . Nature Publishing Group, London, Uk, 23(3):248-258, (2013).

Snyder, E., P. Solomon, R. Williams, E. Thoma, D. Vallano, AND T. Buckley. Low Cost Sensors-Current Capabilities and Gaps. Presented at 2013 ISEE Environmental Health Conference, Basel, SWITZERLAND, September 19 - 23, 2013.

Snyder, E., P. Solomon, M. MacDonell, R. Williams, E. Thoma, D. Vallano, M. Raymond, AND D. Olson. Next generation air monitoring-a review of portable air pollution sensors. Presented at 2013 32nd annual AAAR, Portland, OR, September 30, 2013.

Williams, R., K. Kovalcik, A. Rappold, AND R. Devlin. Personal and community coarse PM mass component comparisons. Presented at 32nd Annual AAAR conference, Portland, OR, October 03, 2013.

Williams, R. Sensor Technology and Advancing the Monitoring Paradigm. Presented at Air and Waste Management's Information Exchange, RTP, NC, December 11, 2013.

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.

ANDERSONBEREZNICKI, S. D., J. SOBUS, A. F. VETTE, M. Stiegel, AND R. W. WILLIAMS. Assessing Spatial and Temporal Variability of VOCs and PM-Components in Outdoor Air during the Detroit Exposure and Aerosol Research Study (DEARS). ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 61(December, 2012):159-168, (2012).

Meng, Q., R. W. WILLIAMS, AND J. P. PINTO. Determinants Of The Associations Between Ambient Concentrations And Personal Exposures To Ambient Pm2.5, No2, And O3 During Dears. ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 63:109-116, (2012).

Lawless, P., J. Thornburg, C. E. RODES, AND R. W. WILLIAMS. Personal Exposure Monitoring Wearing Protocol Compliance: An Initial Assessment of Quantitative Measurements. Journal of Exposure Science and Environmental Epidemiology . Nature Publishing Group, London, Uk, 22(3):274-280, (2012).