| | PM2.5 24 Hour Average (µg/m³) |
| | The information in this report is based on preliminary data and is subject to change. |
| | 09/30 | 10/01 | 10/02 | 10/03 | 10/04 | 10/05 | 10/06 |
| | San Joaquin |
| | Stockton-University | 9.9 |
| | Manteca | 13.4x | 10.7x | 12.6x | 13.9x | 11.3x | 10.3 | 11.2 |
| | Tracy-Airport | 9.4x | 8.6 | 10.7x | 8.0 | 5.9x | 8.3 | 6.5 |
| | Stanislaus |
| | Modesto-14th | 12.9x | 12.4x | 12.8x | 15.9x | 12.2x | 10.2 | 11.6 |
| | Turlock | 13.9x | 14.5x | 14.2x | 14.6x | 13.4x | 10.6 | 11.4 |
| | Merced |
| | Merced-M St. | 10.8x | 12.5x | 15.8x | 15.2x | 11.6x | 12.2 | 11.6 |
| | Merced-Vierra | 13.8x | 15.0x | 18.0x | 17.6x | 13.0x | 14.2 | 13.1 |
| | Madera |
| | Madera-City | 11.5x | 12.3x | 17.9x | 20.2x | 13.5x | 12.6 | 12.7 |
| | Madera |
| | Fresno |
| | Fresno-SSP |
| | Clovis | 13.7x | 15.5x | 18.5x | 19.3 | 16.2x | 12.4 | 15.1 |
| | Fresno-Garland | 14.3x | 18.5x | 17.5x | 19.0 | 17.9x | 11.6 | 14.7 |
| | Fresno-Foundry | 14.7x | 19.2x | 23.5x | 19.0 | 18.6x | 15.7 | 20.5 |
| | Fresno-Pacific | 10.5x | 14.5x | 17.2x | 17.4 | 15.2x | 11.2 | 14.9 |
| | Fresno-Drummond |
| | Parlier |
| | Tranquillity | 5.5x | 8.0 | 9.7 | 9.2 | 6.5x | 8.1 | 4.7 |
| | Huron | 8.3x | 9.1x | 12.2x | 11.0 | 6.7x | 8.9 | 7.0 |
| | Kings |
| | Hanford | 16.3x | 19.8x | 25.7x | 20.1 | 18.0 | 18.2 | 16.5 |
| | Corcoran | 13.6x | 17.0x | 25.0x | 23.1 | 17.7 | 14.7 | 14.0 |
| | Tulare |
| | Visalia-Ashland | 18.4 | 12.7 | 13.0 | 15.0 |
| | Porterville | 9.7x | 9.2x | 12.4x | 12.0 | 8.6 | 8.2 | 10.6 |
| | Ash Mountain-SNP | 6.3 | 5.6 | 4.2 | 5.8 | 5.5 | 4.2 | 6.7 |
| | Kern |
| | Shafter |
| | Oildale |
| | Bakersfield-Gold | 10.5x | 12.7x | 15.5x | 15.3 | 11.5 | 13.0 | 12.8 |
| | Bakersfield-Calif | 10.4x | 13.8x | 14.8x | 17.1 | 12.1 | 11.1 | 12.6 |
| | Bakersfield-Muni |
| | Edison |
| | Arvin-DiGiorgio |
| | Maricopa |
| | Lebec | 1.8 | 4.8 | 3.9 | 4.0 | 1.9 | 2.9 | 4.3 |
| | District Maximum | 16.3 | 19.8 | 25.7 | 23.1 | 18.6 | 18.2 | 20.5 |
|
|
| 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.valleyair.org/hal and become a part of the solution! |
| Wednesday, October 7, 2026 | Page 1 of 1 |