The Utah Department of Environmental Quality issued mandatory action forecasts for Salt Lake County through Saturday, warning that air quality levels will remain unhealthy for sensitive groups. The forecast, released July 30, 2026, mandates that employers activate trip reduction programs to address rising pollution concerns.
Mandatory Actions for Salt Lake County
According to a July 30 forecast from the Utah Department of Environmental Quality, air quality in Salt Lake County is projected to remain in the "Unhealthy for Sensitive Groups" category through Thursday, Friday, and Saturday. During this period, the air quality index reaches levels that necessitate mandatory actions to protect public health.
Under these mandatory action protocols, employers are required to activate trip reduction programs. The Department of Environmental Quality also advises individuals to utilize TravelWise programs by consolidating trips and selecting cleaner transportation options to help mitigate the impact of pollutants.
Health Risks and Seasonal Trends
The Department of Environmental Quality noted that smoke from wildfires could contribute to high concentrations of particulate matter in the region. For those with existing heart or respiratory ailments, officials recommend reducing physical exertion and limiting outdoor activity if smoke becomes thick.
While ozone pollution levels typically remain low during the morning, evening, and night hours during the summer, particulate matter—specifically PM 2.5—tends to build up during the winter months until weather systems move the air out of the valley. The current summer forecast focuses on managing these seasonal shifts to protect vulnerable populations.
Sources of Air Pollution
The Utah Environmental Public Health Tracking Network monitors these conditions by receiving data from the Air Quality Division of the Utah Department of Environmental Quality and the Environmental Protection Agency. This data helps track how air pollution affects public health indicators, including asthma-related emergency department visits and cardiovascular issues.
Air pollution is driven by various biological, physical, and chemical particles in the ambient air. While environmental sources like dust storms and wildfires contribute to poor air quality, human activities such as driving vehicles and using wood-burning fireplaces are significant contributors. Additionally, industrial processes from factories, refineries, and power plants represent some of the greatest contributors to poor air quality through emissions and by-products.
Historical Air Quality Data
Certain populations are more susceptible to the effects of poor air quality, including young children, older adults, and individuals with existing lung or heart issues. The Utah Department of Health and Human Services, through the Utah APPLETREE program, is responsible for evaluating and responding to these environmental public health issues.
Historical data underscores the ongoing nature of these challenges. In 2020, 11 Utah counties recorded at least one day where the 8-hour average ozone concentration exceeded the National Ambient Air Quality Standard. In 2019, 75% of days monitored for the Air Quality Index were rated as "good," while 23% were considered moderate. Although the number of days rated "unhealthy for sensitive groups" was low—accounting for only 1% of days monitored—it still totaled 63 days in that year.
Individual Mitigation Strategies
To combat air pollution, the Utah Department of Environmental Quality and the UCAIR Utah Clean Air Partnership suggest several individual actions. Residents are encouraged to conserve energy by turning off lights and appliances when not in use, recycling paper, plastic, glass, cardboard, and aluminum, and using canvas bags instead of single-use plastic or paper bags.
The Department also recommends that residents plan automobile trips carefully and opt for public transportation, biking, or walking whenever possible to reduce individual contributions to air pollution.
Tools for Public Awareness
For real-time monitoring, the Utah Department of Environmental Quality provides the Utah Air phone app, available on both Android and iPhone stores. This tool allows residents to stay updated on current conditions and upcoming forecasts to better plan their physical activities and minimize health risks.
