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Brantley, H., G. Hagler, S. Herndon, P. Massoli, M. Bergin, AND A. Russell. Characterization of Spatial Air Pollution Patterns Near a Large Railyard Area in Atlanta, Georgia. International Journal of Environmental Research and Public Health. Molecular Diversity Preservation International, Basel, Switzerland, 16(4):535, (2019). https://doi.org/10.3390/ijerph16040535

Williams, R., R. Duvall, Vasu Kilaru, G. Hagler, L. Hassinger, K. Benedict, J. Rice, A. Kaufman, R. Judge, G. Pierce, G. Allen, M. Bergin, R. Cohen, P. Fransioli, M. Gerboles, R. Habre, M. Hannigan, D. Jack, P. Louie, N. Martin, M. Penza, A. Polidori, R. Subramanian, K. Ray, J. Schauer, E. Seto, G. Thurston, J. Turner, A. Wexler, AND Z. Ning. Deliberating performance targets workshop: Potential paths for emerging PM2.5 and O3 air sensor progress. Atmospheric Environment: X. Elsevier B.V., Amsterdam, Netherlands, 2:100031, (2019). https://doi.org/10.1016/j.aeaoa.2019.100031

Mathur, R., C. Hogrefe, A. Hakami, S. Zhao, Jim Szykman, AND G. Hagler. A Call for an Aloft Air Quality Monitoring Network: Need, Feasibility, and Potential Value. ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 52(19):10903–10908, (2018). https://doi.org/10.1021/acs.est.8b02496

Hagler, G. AQ Management Systems: Evaluating Sensor Quality. 2018 MARAMA Monitoring Committee Training Workshop, Charlottesville, VA, December 04 - 06, 2018.

Williams, R., D. Nash, G. Hagler, K. Benedict, I. MacGregor, B. Seay, M. Lawrence, AND T. Dye. Air Quality Sensor Technologies: Ozone Literature Findings. EPA Sensor Performance Deliberations Workshop, Research Triangle Park, NC, June 25 - 27, 2018.

Williams, R., D. Nash, G. Hagler, K. Benedict, I. MacGregor, B. Seay, M. Lawrence, AND T. Dye. Air Quality Sensor Technologies: PM2.5 Literature Findings. EPA Workshop & Webinar: Deliberating Performance Targets for Air Quality Sensors, Durham, NC, June 25 - 27, 2018.

Hagler, G., R. Williams, V. Papapostolou, AND A. Polidori. Air Quality Sensors and Data Adjustment Algorithms: When Is It No Longer a Measurement? ENVIRONMENTAL SCIENCE & TECHNOLOGY. American Chemical Society, Washington, DC, 52(10):5530–5531, (2018). https://doi.org/10.1021/acs.est.8b01826

Morawska, L., P. Thai, X. Liu, A. Asumadu-Sakyi, G. Ayoko, A. Bartonova, A. Bedini, F. Chai, B. Christensen, M. Dunbabin, J. Gao, G. Hagler, R. Jayaratne, P. Kumar, A. Lau, P. Louie, M. Mazaheri, Z. Ning, N. Motta, B. Mullins, M. Rahman, Z. Ristovski, M. Shafiei, D. Tjondronegoro, D. Westerdahl, AND R. Williams. Applications of low-cost sensing technologies for air quality monitoring and exposure assessment: How far have they gone? ENVIRONMENT INTERNATIONAL. Elsevier B.V., Amsterdam, Netherlands, 116:286-299, (2018). https://doi.org/10.1016/j.envint.2018.04.018

Feinberg, S., R. Williams, G. Hagler, J. Low, L. Smith, R. Brown, D. Garver, M. Davis, M. Morton, J. Schaefer, J. Campbell, AND T. McArthur. CitySpace Air Sensor Network: Application of High-Time Resolution Data from a Network of Low-Cost Air Sensor Technology to Examine Urban Air Pollution. 2018 International Aerosol Conference, St. Louis, MI, September 02 - 07, 2018.

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.

Feinberg, S., R. Williams, G. Hagler, J. Rickard, R. Brown, D. Garver, G. Harshfield, P. Stauffer, E. Mattson, R. Judge, AND S. Garvey. Long-term evaluation of air sensor technology under ambient conditions in Denver, Colorado. Atmospheric Measurement Techniques. Copernicus Publications, Katlenburg-Lindau, Germany, 11(8):4605-4615, (2018). https://doi.org/10.5194/amt-11-4605-2018

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.

Hagler, G. New developments in air monitoring research at U.S. EPA. 2018 National Ambient Air Monitoring Conference, Portland, OR, August 13 - 16, 2018.

Hagler, G. Overview of Emerging Air Quality Monitoring Technologies and Their Data. Air Quality Planning for Wildland Smoke, Research Triangle Park, NC, February 01, 2018.

Williams, R., D. Nash, G. Hagler, K. Benedict, I. MacGregor, B. Seay, M. Lawrence, AND T. Dye. Peer Review and Supporting Literature Review of Air Sensor Technology Performance Targets. U.S. Environmental Protection Agency, Washington, DC, EPA/600/R-18/324, 2018.

Hagler, G. Recent Developments in Air Monitoring Technology Relevant to Wildfire Smoke. APHA 2018 Annual Meeting and Expo, San Diego, CA, November 12 - 14, 2018.

Hagler, G. Resolving air quality data gaps – are sensors the solution? GE Symposium - Sensing Systems: Intelligence & Awareness, Niskayuna, New York, September 05, 2018.

Hagler, G. Wildland Fire Air Quality Response Program and Emerging Air Monitoring Technologies. APHA State Affiliates Webinar, Research Triangle Park, NC, December 03, 2018.

Hagler, G., D. Birkett, R. Henry, AND E. Thoma. Back-trajectory modeling of high time-resolution air measurement data to separate nearby sources. 2017 CMAS Conference, Chapel Hill, NC, October 23 - 25, 2017.

Hagler, G. Bringing hands-on exploration of air quality technology to the classroom. Air Quality Workshop for Teachers, Durham, NC, July 11 - 12, 2017.

Benedict, K., Richard Wayland, AND G. Hagler. Characterizing Air Quality in a Rapidly Changing World. EM: AIR AND WASTE MANAGEMENT ASSOCIATION'S MAGAZINE FOR ENVIRONMENTAL MANAGERS. Air & Waste Management Association, Pittsburgh, PA, , 1-4, (2017).

Hagler, G. Citizen science and air quality research at the U.S. EPA. Science, Policy, Business Forum, Nairobi, N/A, KENYA, December 02 - 03, 2017.

Hagler, G. EPA activities related to emerging air sensor technology. CNEMC meeting, Beijing, CHINA, June 07, 2017.

Hagler, G. AND Y. Awe. Filling the Data Gaps for Air Quality Management. Science, Policy, Business Forum, Nairobi, KENYA, December 02 - 03, 2017.

Hagler, G. In what ways can low-cost portable monitors best be utilized for health research and patient care in locations that do not have an existing stationary monitoring network? American Thoracic Society workshop on Air Pollution Monitoring for Health Research and Patient Care, Washington, DC, May 20, 2017.