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Dr. Casey’s research is focused on improving low-cost air quality measurement techniques. Metal oxide, electrochemical, and non-dispersive infrared sensors have emerged recently with great potential to help inform air quality in ways traditional instrumentation is not well suited, though the usefulness of these tools is complicated by cross sensitivity to environmental variables like temperature and humidity, as well as potentially confounding gas species. Dr. Casey develops and applies quantification methods to characterize air quality in both indoor and ambient environments. She worked with a student to investigate air quality impacts of reduced emissions from the transportation sector and other sources during the pandemic ‘stay at home’ order in Spring of 2020. She also supported a student-led effort to measure CO2 in indoor spaces areas across the FLC campus to assess the adequacy of ventilation and is engaged in an ongoing student-led project to compare air quality in indoor and outdoor environments on the FLC campus. Before joining the department of Physics and Engineering at Fort Lewis College in 2019, Dr. Casey implemented the Ambient Air Quality Monitoring Program for the Southern Ute Indian Tribe.
Dr. Casey was quoted in the Durango Herald in an article about the mechanisms behind sunsets and alpenglow in the region. [2/18/20]
Casey, J.G., Collier-Oxandale, A., Hannigan, M., 2019 Artificial Neural Networks To Quantify 4 Trace Gas Species In an Oil and Gas Production Region with Low-Cost Sensors. Sensors and Actuators B: Chemical. 283, 504-514. doi:10.1016/j.snb.2018.12.049
Casey, J.G., Collier-Oxandale, A., Hannigan, M., 2018 Testing Field Calibration of Low-Cost Gas Sensors on Measurments in New Locations: Across a County Line and Across Colorado. Atmos. Meas. Tech., 11, 6351–6378, 2018 https://doi.org/10.5194/amt-11-6351-2018
Collier-Oxandale, A., Hannigan, M.P., Casey, J.G., Piedrahita, R., Halliday, H.S., Johnston, J., 2018 Assessing a low-cost methane sensor quantification system for use in complex rural and urban environments. Atmos. Meas. Tech. https://doi.org/10.5194/amt-11-3569-2018
Casey, J.G., Ortega, J., Coffey, E., Hannigan, M., 2017. Low-Cost Measurement Techniques to Characterize the Influence of Home Heating Fuel on Carbon Monoxide in Navajo Homes. Sci. Total Environ. 625, 608–618. doi:10.1016/j.scitotenv.2017.12.312
Cheadle, L., Deanes, L., Sadighi, K., Casey, J.G., Collier-Oxandale, A., Hannigan, M., 2017. Quantifying Neighborhood-Scale Spatial Variations of Ozone at Open Space and Urban Sites in Boulder, Colorado Using Low-Cost Sensor Technology. Sensors 17, 2072. doi:10.3390/s17092072
Stephens, B.B., Long, M.C., Keeling, R.F., Kort, E.A., Sweeney, C., Apel, E.C., Atlas, E.L., Beaton, S., Bent, J.D., Blake, N.J., Bresch, J.F., Casey, J., Daube, B.C., Diao, M., Diaz, E., Dierssen, H., Donets, V., Gao, B.-C., Gierach, M., Green, R., Haag, J., Hayman, M., Hills, A.J., Hoecker-Martínez, M.S., Honomichl, S.B., Hornbrook, R.S., Jensen, J.B., Li, R.-R., McCubbin, I., McKain, K., Morgan, E.J., Nolte, S., Powers, J.G., Rainwater, B., Randolph, K., Reeves, M., Schauffler, S.M., Smith, M., Smith, K., Stith, J., Stossmeister, G., Toohey, D.W., Watt, A.S., 2017. The O 2 /N 2 Ratio and CO 2 Airborne Southern Ocean (ORCAS) Study. Bull. Am. Meteorol. Soc. BAMS-D-16-0206.1. doi:10.1175/BAMS-D-16-0206.1
Almand-Hunter, B.B., Gordon, J., Masson, N., Michael, P., Miller, S.L., 2014. Dust Exposure In Indoor Climbing Facilities, Indoor Air Conference Proceedings.