- 1Good
- 2Moderate
- 3Mildly Unhealthy
- 4Unhealthy
- 5Very Unhealthy
- 6Hazardous
111
Salt Lake City, UT
- O3: 3 (Good)
- PM2.5: 111 (Mildly Unhealthy)
Last updated: 3 MST
Members of sensitive groups may experience health effects. The general public is less likely to be affected.
- San Antonio, TX 34
- Philadelphia, PA 59
- Visalia, CA 120
- New York City Region, NY 31
- Chicago, IL 58
- Houston-Galveston-Brazoria, TX 61
- Salem, OR 44
- Phoenix, AZ 109
- Austin, TX 32
- Dallas-Fort Worth, TX 35
- San Jose, CA 87
- North Pole, AK 50
- San Diego Mesa and Inland Valley, CA 52
- S Central LA CO, CA 108
- Pittsburgh, PA 56