| | PM2.5 24 Hour Average (µg/m³) |
| | The information in this report is based on preliminary data and is subject to change. |
| | 07/17 | 07/18 | 07/19 | 07/20 | 07/21 | 07/22 | 07/23 |
| | San Joaquin |
| | Stockton-University | 8.2 | 5.4 | 4.3 | 4.4 | 4.5 | 2.7 | 3.7 |
| | Manteca | 7.5 | 5.8 | 5.0 | 3.4 | 4.5 | 3.2 | 2.9 |
| | Tracy-Airport | 6.7 | 5.9 | 5.6 | 4.5 | 5.7 | 2.8 | 4.4 |
| | Stanislaus |
| | Modesto-14th | 5.0 | 5.0 | 3.1 | 3.0 | 3.0 | 2.8 | 2.8 |
| | Turlock | 8.2 | 7.8 | 6.2 | 6.1 | 6.5 | 5.6 | 4.9 |
| | Merced |
| | Merced-M St. | 7.5 | 6.1 | 6.4 | 5.3 | 3.9 | 4.8 | 4.2 |
| | Merced-Vierra | 8.0 | 7.2 | 6.5 | 5.0 | 4.4 | 4.5 | 4.0 |
| | Madera |
| | Madera-City | 7.4 | 8.3 | 7.6 | 5.9 | 5.8 | 6.5 | 5.5x |
| | Madera |
| | Fresno |
| | Fresno-SSP |
| | Clovis | 11.3 | 10.0 | 9.5 | 8.7 | 7.3 | 7.6 | 5.7x |
| | Fresno-Garland | 10.8 | 7.8 | 8.5 | 5.9 | 6.0 | 6.8 | 4.9x |
| | Fresno-Foundry | 9.0 | 8.8 | 6.5 | 7.5 | 6.5 | 6.8 | 4.0x |
| | Fresno-Pacific | 8.1 | 7.9 | 8.3 | 7.8 | 5.8 | 7.4 | 4.8x |
| | Fresno-Drummond |
| | Parlier |
| | Tranquillity | 4.5 | 6.1 | 4.2 | 3.6 | 5.6 | 3.5 | 2.6 |
| | Huron | 13.8x | 13.0 | 7.8 | 5.6 | 7.7 | 4.3 | 3.7 |
| | Kings |
| | Hanford | 6.5 | 10.3 | 8.0 | 5.1 | 6.0 | 7.6 | 5.7x |
| | Corcoran | 9.1 | 12.0 | 10.2 | 8.2 | 8.9 | 7.7 | 10.1x |
| | Tulare |
| | Visalia-Ashland | 7.2 | 9.3 | 8.6 | 6.4 | 6.4 | 4.5 | 5.2x |
| | Porterville | 6.2 | 9.1 | 7.8 | 4.6 | 5.2 | 4.8 | 8.7x |
| | Ash Mountain-SNP | 7.6 | 9.1 | 10.0 | 10.1 | 6.8 | 4.6 | 8.0x |
| | Kern |
| | Shafter |
| | Oildale |
| | Bakersfield-Gold | 10.7 | 13.3 | 8.7 | 8.3 | 7.3 | 5.9 | 6.7x |
| | Bakersfield-Calif | 8.1 | 12.2 | 6.9 | 5.9 | 6.5 | 5.3 | 6.2x |
| | Bakersfield-Muni |
| | Edison |
| | Arvin-DiGiorgio |
| | Maricopa |
| | Lebec | 6.9 | 8.3 | 8.5 | 5.9 | 5.7 | 5.0 | 6.8x |
| | District Maximum | 13.8 | 13.3 | 10.2 | 10.1 | 8.9 | 7.7 | 10.1 |
|
|
| ¹Data affected by smoke, high winds, fireworks, etc. and which exceeded a federal standard are denoted with |
| an ‘x’ in the table above. Values marked with an ‘x’ are not included in the tallies above. |
| Make one change for clean air! Visit www.healthairliving.com and become a part of the solution! |
| Friday, July 24, 2026 | Page 1 of 1 |