Levels of the fine particulates found in northern Utah’s winter inversions have decreased over three years, putting the area in line with federal air quality standards for the first time in over a decade.
Tuesday was the first red air day of the winter season in the Salt Lake Valley. Members of the Salt Lake Chamber of Commerce used it to promote an initiative to get companies to reward their employees for driving less.
Two events that attract tens of thousands of visitors to Utah are taking place this week: The Sundance Film Festival and the winter Outdoor Retailers show. Some activist groups are wondering if there's an effort to avoid drawing attention to the state's lousy air quality while they're in town.