Air Quality in South Dakota
10-year air quality trends for 10 monitored areas in South Dakota.
See full South Dakota air quality rankings →All Monitored Areas in South Dakota
Hughes, South Dakota
Hughes County · AQI 13 (5yr avg) · Improving · PM2.5
Brown, South Dakota
Brown County · AQI 26 (5yr avg) · Improving · PM2.5
Union, South Dakota
Union County · AQI 40 (5yr avg) · Stable · Ozone
Minnehaha, South Dakota
Minnehaha County · AQI 39 (5yr avg) · Improving · Ozone
Jackson, South Dakota
Jackson County · AQI 39 (5yr avg) · Stable · Ozone
Pennington, South Dakota
Pennington County · AQI 38 (5yr avg) · Stable · PM2.5
Custer, South Dakota
Custer County · AQI 41 (5yr avg) · Stable · Ozone
Brookings, South Dakota
Brookings County · AQI 40 (5yr avg) · Worsening · Ozone
Meade, South Dakota
Meade County · AQI 39 (5yr avg) · Worsening · Ozone
Codington, South Dakota
Codington County · AQI 40 (5yr avg) · Worsening · PM2.5
Frequently Asked Questions
South Dakota has 10 monitored areas with an average 5-year AQI of 36 and an average Air Quality Grade of B. 4 cities are improving, 5 are worsening, and 1 are stable.
Hughes, South Dakota has the best Air Quality Grade (A) in South Dakota with a 5-year average AQI of 13.
Of 10 monitored areas in South Dakota, 4 are showing improving trends, 5 are worsening, and 1 remain stable over the past decade.