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Records 26 to 50 of 300 records from author Ronald Williams

2017
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.
2016
Feinberg, S., R. Williams, J. Rickard, R. Brown, D. Garver, G. Harshfield, P. Stauffer, E. Mattson, R. Judge, AND S. Garvey. CAIRSENSE Study: Real-world evaluation of low cost sensors in Denver, Colorado. Presented at National Ambient Air Monitoring Conference, St. Louis, Missouri, August 08 - 11, 2016.
Jiao, W., G. Hagler, R. Williams, R. Sharpe, R. Brown, D. Garver, R. Judge, M. Caudill, J. Rickard, M. Davis, Lewis Weinstock, S. Zimmer-Dauphinee, AND K. Buckley. Community Air Sensor Network (CAIRSENSE) project: Evaluation of low-cost sensor performance in a suburban environment in the southeastern United States. Atmospheric Measurement Techniques. Copernicus Publications, Katlenburg-Lindau, Germany, 9(11):5281-5292, (2016).
Breen, M., Y. Xu, A. Schneider, R. Williams, AND R. Devlin. Modeling Air Pollution Exposure Metrics for the Diabetes and Environment Panel Study (DEPS). 2016 Annual International Society of Exposure Science Meeting, Utrecht, The Netherlands, October 09 - 13, 2016.
Hagler, G., Z. Ning, P. Louie, R. Sharpe, N. Lam, AND R. Williams. Performance Assessment of a Solar powered Air Quality and Weather Station Placed on a School Rooftop in Hong Kong. Presented at AWMA Measurements Conference, Chapel Hill, NC, March 15 - 17, 2016.
Hagler, G., Z. Ning, N. Lam, R. Sharpe, R. Williams, AND P. Louie. Performance Assessment of a Solar-powered Air Quality and Weather Station Placed on a School Roof top in Hong Kong. EM: AIR AND WASTE MANAGEMENT ASSOCIATION'S MAGAZINE FOR ENVIRONMENTAL MANAGERS. Air & Waste Management Association, Pittsburgh, PA, , 234-238, (2016).
Hagler, G., Z. Ning, P. Louie, R. Sharpe, AND R. Williams. Performance assessment of a solar-powered air quality and weather station placed on a school rooftop in Hong Kong. Presented at AWMA Hong, Hong Gong, CHINA, March 14 - 18, 2016.
Hagler, G., R. Williams, E. Thoma, Bill Mitchell, R. Duvall, R. Long, B. Gullett, A. Holder, T. Barzyk, Sue Kimbrough, S. Feinberg, A. Kaufman, AND H. Brantley. Rapid evolution of air pollution sensor technology for research and consumer product applications. Presented at WISeNet workshop, Durham, NC, May 09, 2016.
Hagler, G., R. Williams, E. Thoma, Bill Mitchell, R. Duvall, R. Long, B. Gullett, A. Holder, T. Barzyk, Sue Kimbrough, S. Feinberg, A. Kaufman, AND H. Brantley. Rapid evolution of air sensor technologies. Presented at Wireless Intelligent Sensor Network workshop, Durham, NC, May 09, 2016.
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).
2015
Breen, M., T. Long, B. Schultz, R. Williams, J. Richmond-Bryant, M. Breen, J. Langstaff, R. Devlin, A. Schneider, J. Burke, S. Batterman, AND Q. Meng. Air Pollution Exposure Model for Individuals (EMI) in Health Studies: Evaluation for Ambient PM2.5 in Central North Carolina. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 49(24):14184-14194, (2015).
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).
Shin, H., Paul A. Jones, R. Brook, R. Bard, K. Oliver, AND R. Williams. Associations between Personal Exposures to VOCs and Alterations in Cardiovascular Physiology: Detroit Exposure and Aerosol Research Study (DEARS). ATMOSPHERIC ENVIRONMENT. Elsevier Science Ltd, New York, NY, 104:246-255, (2015).
Shin, H., Paul-A Jones, R. Brook, R. Bard, K. Oliver, AND R. Williams. Associations between personal exposures to VOCs and alterations in cardiovascular physiology: Detroit Exposure and Aerosol Research Study (DEARS) - presentation. 2015 ISEE, Sao Paulo, BRAZIL, August 30 - September 03, 2015.
Williams, R., A. Kaufman, AND S. Garvey. CAIRPOL CAIRCLIP NM-VOC. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-15/115 (NTIS PB2015-104894), 2015.
Williams, R., A. Kaufman, AND S. Garvey. CAIRPOL CAIRCLIP O3-NO2. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-15/117 (NTIS PB2015-105134), 2015.
WILLIAMS, R. W., T. M. BARZYK, AND A. KAUFMAN. Citizen Science Air Monitor (CSAM) Quality Assurance Guidelines. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-15/008, 2015.
Jiao, W., G. Hagler, R. Williams, R. Sharpe, R. Brown, D. Garver, 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 108 th AWMA Conference, RTP, NC, June 23 - 25, 2015.
Hagler, G., R. Williams, B. Sharpe, W. Jiao, Bill Mitchell, AND K. Leovic. Community air monitoring and the Village Green Project. Presented at ISES, Cincinnati, OH, October 12 - 16, 2014.
Mukerjee, S., L. Smith, H. Brantley, C. Stallings, L. Neas, Sue Kimbrough, AND R. Williams. Comparison of modeled traffic exposure zones using on-road air pollution measurements. Atmospheric Pollution Research. Turkish National Committee for Air Pollution Research and Control, Izmir, Turkey, 6(1):82-87, (2015).
Williams, R., A. Kaufman, AND S. Garvey. DYLOS DC110. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-15/116 (NTIS PB2015-104895), 2015.
Williams, R., A. Kaufman, AND G. Hagler. EPA’s Air Sensor Toolbox for Citizen Scientists. Internal Briefing, RTP, NC, December 01, 2015.
Hagler, G. AND R. Williams. EPA's Village Green Project. EPA Air Sensonrs Workshop, Durham, NC, March 19 - 21, 2013.
Williams, R. Emerging Low-Cost Sensors for Various Applications (Next Generation Air Monitoring). Federal Data Working Group, McLean , VA, McLean, VA, October 19, 2015.
Williams, R., A. Kaufman, T. Hanley, J. Rice, AND S. Garvey. Evaluation of Elm and Speck Sensors. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-15/314, 2015.