Air Pollution in Saint Louis County: Real-time Air Quality Index and smog alert.
Air pollution in Saint Louis County from March 2016 to May 2020
| index |
2020-05 |
2020-04 |
2020-03 |
2019-10 |
2019-09 |
2019-08 |
2019-07 |
2019-06 |
2019-05 |
2019-04 |
2019-03 |
2018-10 |
2018-09 |
2018-08 |
2018-07 |
2018-06 |
2018-05 |
2018-04 |
2018-03 |
2017-10 |
2017-09 |
2017-08 |
2017-07 |
2017-06 |
2017-05 |
2017-04 |
2017-03 |
2016-10 |
2016-09 |
2016-08 |
2016-07 |
2016-06 |
2016-05 |
2016-04 |
2016-03 |
| o3:ppm |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.02 (Good) |
0.02 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.04 (Good) |
0.04 (Good) |
0.02 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.04 (Good) |
0.04 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.02 (Good) |
0.02 (Good) |
0.02 (Good) |
0.03 (Good) |
0.03 (Good) |
0.03 (Good) |
0.04 (Good) |
0.03 (Good) |
data source »
Pacific
| index |
2020-05 |
2020-04 |
2020-03 |
2019-10 |
2019-09 |
2019-08 |
2019-07 |
2019-06 |
2019-05 |
2019-04 |
2019-03 |
2018-10 |
2018-09 |
2018-08 |
2018-07 |
2018-06 |
2018-05 |
2018-04 |
2018-03 |
2017-10 |
2017-09 |
2017-08 |
2017-07 |
2017-06 |
2017-05 |
2017-04 |
2017-03 |
2016-10 |
2016-09 |
2016-08 |
2016-07 |
2016-06 |
2016-05 |
2016-04 |
2016-03 |
| o3:ppm |
0.03 |
0.03 |
0.03 |
0.02 |
0.02 |
0.03 |
0.03 |
0.03 |
0.03 |
0.04 |
0.04 |
0.02 |
0.03 |
0.03 |
0.03 |
0.03 |
0.04 |
0.04 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.03 |
0.02 |
0.02 |
0.02 |
0.03 |
0.03 |
0.03 |
0.04 |
0.03 |