Air quality Friday was worsening as a high pressure system trapped increasing amounts of cold air laden with automobile, industrial and other pollutants in Utah's urban valley bowls. That wet, sooty blanket of hydrocarbon flatulence was to persist through the weekend.
For Saturday, as on Friday, the Utah Division of Air Quality issued "unhealthy" breathing condition alerts. Mandatory bans were ordered for solid-fuel burning devices and open burning in general, and motorists were asked to reduce trips, avoid idling or opt for mass transit. Industries were urged to optimize their operations to limit their emissions.
The elderly, very young and those with heart or respiratory conditions were advised to avoid outdoor activity in the affected areas.