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Records 51 to 75 of 85 records published between 04/23/2014 and 04/23/2019 from author Ronald Williams

2015
Thomas, K., J. Xue, R. Williams, P. Jones, AND D. Whitaker. Polychlorinated biphenyl sources, environmental levels, and exposures in school buildings. ISES 2015 Annual Meeting, Henderson, NV, October 18 - 22, 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.
Williams, R., A. Kaufman, AND S. Garvey. TOXIRAE PRO PID. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-15/124 (NTIS PB2015-105135), 2015.
Kaufman, A., R. Williams, T. Barzyk, M. OShea, A. Hoang, P. Sheridan, AND M. Greenberg. The Air Sensor Citizen Science Toolbox: A Collaboration in Community Air Quality Monitoring and Mapping. Citizen Science 2015 Conference, San Jose, CA, February 11 - 12, 2015.
Williams, R., A. Kaufman, AND S. Garvey. UNITEC SENS-IT. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-15/119 (NTIS PB2015-105132), 2015.
Herrera, E., G. Hagler, R. Williams, A. Brown, R. Evans, K. Benedict, Lewis Weinstock, P. Dickerson, B. Johns, AND J. White. Village Green Air Monitoring: Expanding Community Awareness of Air Quality Through Partnerships. To be Presented at AWMA Conference and Exhibition, raleigh, NC, June 22 - 25, 2015.
2014
Williams, R., D. Costa, A. Brown, A. Kaufman, D. Buchbinder, G. Hagler, E. Thoma, Bill Mitchell, B. Gullett, W. Jiao, Vasu Kilaru, R. Long, M. Beaver, R. Duvall, P. Solomon, K. Leovic, E. Smith, L. Stanek, Tim Watkins, P. Preuss, S. Katz, G. Robarge, E. Snyder, B. Sharpe, AND S. Garvey. #2) Sensor Technology-State of the Science. Webinar Presentation - Sensor Technology-State of the Science, Research Triangle Park, NC, July 08, 2014.
Williams, R., Vasu Kilaru, E. Snyder, A. Kaufman, T. Dye, A. Rutter, A. Russell, AND H. Hafner. Air Sensor Guidebook. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-14/159 (NTIS PB2015-100610), 2014.
Hammond, D., C. Croghan, H. Shin, R. Burnette, R. Bard, R. Brook, AND R. Williams. Cardiovascular impacts and micro-environmental exposure factors associated with continuous personal PM2.5 monitoring. Journal of Exposure Science and Environmental Epidemiology . Nature Publishing Group, London, Uk, 24(4):337-345, (2014).
Kaufman, A., R. Williams, T. Barzyk, AND Tim Watkins. Citizen Science and Emerging Technologies. Presented at US Public Health Service Scientific and Training Symposium, Raleigh, NC, June 10 - 12, 2014.
Jiao, W., G. Hagler, R. Williams, R. Brown, D. Garver, B. Sharpe, R. Judge, M. Caudill, J. Rickard, M. Davis, Lewis Weinstock, S. Zimmer-Dauphinee, AND K. Buckley. Community Air Sensor Network (CAIRSENSE) Project: Lower Cost, Continuous Ambient Monitoring Methods. Presented at AWMA conference in Raleigh, NC, Raleigh, NC, June 22 - 25, 2014.
Hagler, G., R. Williams, W. Jiao, B. Sharpe, Bill Mitchell, K. Leovic, Lewis Weinstock, J. Rice, E. Herrera, P. Dickerson, J. White, B. Johns, K. Benedict, R. Evans, AND A. Brown. Community air monitoring and the Village Green Project. Presented at the International Society of Exposure Science 24th Annual Meeting, Charlottsville, VA, October 12 - 16, 2014.
Hagler, G., H. Brantley, R. Baldauf, Sue Kimbrough, A. Holder, R. Williams, S. Mukerjee, V. Isakov, L. Neas, E. Thoma, T. Barzyk, P. Deshmukh, M. Freeman, AND S. Herndon. Deriving spatial trends of air pollution at a neighborhood-scale through mobile monitoring. Presented at International Society of Exposure Sciece conference, Cincinnati, OH, October 12 - 16, 2014.
Herrera, E., G. Hagler, R. Williams, W. Jiao, B. Sharpe, Lewis Weinstock, P. Dickerson, J. White, B. Johns, K. Benedict, R. Evans, AND J. Rice. EPA’s Village Green Project: New Directions. Presented at EPA Air Sensors Conference, Durham, NC, June 09 - 10, 2014.
Herrera, E., G. Hagler, R. Williams, W. Jiao, B. Sharpe, Lewis Weinstock, P. Dickerson, J. White, B. Johns, K. Benedict, R. Evans, AND J. Rice. EPA’s Village Green Project: New Directions. Presented at EPA Air Sensors 2014 workshop, RtTP, NC, June 09 - 10, 2014.
Williams, R., A. Kaufman, T. Hanley, J. Rice, AND S. Garvey. Evaluation of Field-deployed Low Cost PM Sensors. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-14/464 (NTIS PB 2015-102104), 2014.
Thomas, K., J. Xue, R. Williams, Paul-A Jones, AND D. Whitaker. Exposure Modeling for Polychlorinated Biphenyls in School Buildings. 8th International PCB Workshop, Woods Hole, MA, October 05 - 09, 2014.
Breen, M., T. Long, Brad Schultz, J. Crooks, M. Breen, J. Langstaff, K. Isaacs, C. Tan, R. Williams, Y. Cao, A. Geller, R. Devlin, S. Batterman, AND T. Buckley. GPS-based Microenvironment Tracker (MicroTrac) Model to Estimate Time-Location of Individuals for Air Pollution Exposure Assessments: Model Evaluation in Central North Carolina. ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 24(4):412-420, (2014).
Hagler, G., R. Baldauf, H. Brantley, A. Holder, E. Thoma, Sue Kimbrough, R. Williams, L. Neas, S. Mukerjee, T. Barzyk, V. Isakov, P. Deshmukh, M. Freeman, AND S. Herndon. High resolution pollutant measurements in complex urban environments using mobile monitoring. Presented at International Society of Exposure Science 24thAnnual Meeting, Cincinnati, OH, October 12 - 16, 2014.
Tulve, N., K. Isaacs, R. Williams, T. McCurdy, L. Phillips, C. Croghan, AND H. Ozkaynak. How Questionnaires and Multimedia Measurements collected in the U.S. EPA’s Observational Human Exposure Measurement Studies Inform Exposures. ISES 2014 Annual Meeting, Cincinnati, OH, October 12 - 16, 2014.
Williams, R. ISES Training Class - Continuous Measurements. 2014 International Society of Exposure Science, Cincinnati, OH, October 12 - 16, 2014.
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.
Brantley, H., G. Hagler, Sue Kimbrough, R. Williams, S. Mukerjee, AND L. Neas. Mobile Air Monitoring Data Processing Strategies and Effects on Spatial Air Pollution Trends. Atmospheric Measurement Techniques. Copernicus Publications, Katlenburg-Lindau, Germany, 7(7):2169-2183, (2014).
MacDonnell, M., M. Raymond, D. Wyker, M. Finster, Y. Chang, T. Raymond, B. Temple, M. Scofield, D. Vallano, E. Snyder, AND R. Williams. Mobile Sensors and Applications for Air Pollutants. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-14/051 (NTIS PB2014 105955), 2014.
Hagler, G., R. Williams, E. Thoma, B. Gullett, R. Long, M. Beaver, R. Duvall, Bill Mitchell, B. Squier, W. Jiao, AND X. Zhou. Next-generation air monitoring – an overview of EPA research to develop real-time instrumentation packages for stationary and mobile monitoring. Presented at 2nd Annual Workshop on Wireless Sensor Networks (WISEnet), Durham, NC, June 09, 2014 - March 10, 2016.