The National Weather Service in Boise issued an air quality advisory on July 29 affecting four Idaho counties, including Twin Falls, warning residents to limit outdoor activity as air quality deteriorated to unhealthy levels.
The advisory, issued at 11:35 a.m. MDT, remained in effect through 1 p.m. that same day and covered Twin Falls, Jerome, Gooding, and Camas counties. The Idaho Department of Environmental Quality’s Air Quality Group coordinated the alert to notify the public of worsening conditions across the Magic Valley region.
Who Is Most at Risk
Children, elderly residents, and people with existing respiratory conditions face the greatest risk from the unhealthy air quality levels. The advisory specifically recommended that these sensitive individuals avoid prolonged or strenuous outdoor activity during the alert period.
All other residents were urged to limit time spent in demanding outdoor exercise, even if they do not typically experience breathing problems. Symptoms of air quality-related health effects can include coughing, difficulty breathing, and chest discomfort.
Burning Restrictions in Place
As part of the air quality response, open burning was prohibited under state air quality rules. The restriction applied throughout the advisory period to prevent additional smoke and particulates from entering an already compromised atmosphere.
Residents in the affected counties who have burning permits or planned outdoor fires were expected to postpone those activities until air quality improved and the advisory was lifted.
What Comes Next
The Twin Falls Regional Office of the Idaho Department of Environmental Quality can provide additional guidance on air quality conditions and health precautions. Residents with questions about the advisory or local air quality can contact the office at (208) 736-2190.
Air quality advisories are typically issued when smoke from nearby wildfires or other atmospheric conditions reduce visibility and increase airborne pollutants to levels that pose health risks. The Massive Wildfire near Idaho-Oregon Border Triggers Evacuations in Owyhee County and other fire activity in the region can contribute to degraded air quality across multiple counties.
Residents in Twin Falls, Jerome, Gooding, and Camas counties should monitor updates from the National Weather Service and the Idaho Department of Environmental Quality for changes to air quality conditions and any extensions or new advisories that may be issued.