PM2.5 remains an ongoing and complex problem in northern Utah, but we have shown we can effectively reduce wintertime PM2.5 in Cache Valley and address attainment challenges along the Wasatch Front.
Winter ozone and other pollutants have been decreasing in the Uinta Basin, but the future is uncertain.
Summertime ozone will continue to pose health and regulatory challenges for Utah’s urban areas.
Gas-phase ammonia is an important precursor to northern Utah’s PM2.5. As such, it is critical to understand the strengths and distribution of its wintertime sources.
The hottest summer on record across the state occurred in 2021, and 2022 brought more extreme temperatures, including a record-breaking 34 days over 100 ºF in Salt Lake City.
Future electrification of vehicles in the northern Wasatch Front will be critical for addressing the area’s long-standing air pollution problems.
