Lab Members

Evan Coffey

Evan Coffey

Evan Coffey joined the Mechanical Engineering research faculty in 2013 after pursuing a background in Environmental Engineering at the University of Colorado, Boulder. He is a member of the Hannigan Air Quality and Technology Research Laboratory, where over the past 6 years, he has been involved in a variety of air quality focused research collaborations in Colorado, California, the Navajo Nation, Ghana, and Rwanda. His current research interests focus on...
Annamarie Guth

Annamarie Guth

Annamarie is a third year undergrad in the Environmental Engineering department, graduating in 2022. This summer she is working on low-cost sensor data from Ghana. She is also extremely involved with the Rwanda team of Engineers Without Borders.

Mike Hannigan

Lab Director
Mike is a professor of Mechanical Engineering at CU and is currently the chair of that department. Mike is also faculty in the CU Environmental Engineering program. He earned his PhD in Environmental Engineering Science at Caltech in 1997 and then did stints at MIT Environmental Health Sciences, CSU Atmospheric Sciences, and DU Chemistry before finally landing at CU. Mike has been teaching engineering core classes like Statics and Measurements...
Eric Kolb

Eric Kolb

Eric is currently a first year PhD student in Mechanical Engineering. He is originally from the tiny town of Mont Vernon, NH, and completed his Bachelor's degree in Chemical Engineering at Rochester Institute of Technology in upstate New York. He will be working on measuring and characterizing different chemical pollutants and emissions from wildfires. Eric loves backpacking around the world, hiking, and cooking/eating weird and interesting foods.

Kristen Okorn

Kristen Okorn is a PhD student in Environmental Engineering. She is a New York native, having completed her Bachelor’s and Master’s degrees in Mechanical Engineering at Stevens Institute of Technology. Currently, she is working on the spatial variability of pollutants near urban oil drilling sites in Los Angeles, CA. She is also passionate about education outreach and is involved in the AQIQ program.

David Pfotenhauer

David Pfotenhauer is a graduate student pursing a PhD in Mechanical Engineering with a focus on Energy and Environment. Originally born and raised in Madison Wisconsin, David studied Physics and Mathematics in undergraduate, receiving his BA degree from Luther College in Decorah Iowa. He is currently working on the group’s Cookstove Project and will soon be performing airborne particulate matter filter analysis from various sampling sites, including Navrongo, Ghana and...

Sarah Toth

Sarah is a PhD student in Environmental Engineering. She has a BS in Environmental Engineering, magna cum laude, from the University of Florida. She is currently working on particulate matter soiling of photovoltaic modules.