Darrell Sonntag

Darrell Sonntag joined the BYU Civil & Construction Engineering faculty in April 2022. For the previous 12 years, he conducted research and worked as an engineer at the US Environmental Protection Agency’s Office of Air Quality & Transportation. At the US EPA, his primary role was working with other engineers and scientists in developing a vehicle emissions model, the Motor Vehicle Emission Simulator (MOVES), used to estimate the air quality and greenhouse gas impacts of regulations and policies on vehicle emissions. At BYU, Darrell is conducting measurements of vehicle emissions and indoor air quality and modeling the environmental impacts of transportation systems.

Darrell is excited to join students at BYU in pursuit of truth through both science and faith. During his time as a BYU student, Darrell served in the Italy Rome Mission of the Church of Jesus Christ of Latter-day Saints from 2000-2002. He enjoys camping, hiking, biking, and cross-country skiing with his family.