| | AQI by Site |
| | AQI is determined using real-time data measured at each site. AQI is based on the pollutant that measured highest. |
| | Factors such as site capabilities, seasonality, wildfire or wind events, and/or technical difficulties influence which |
| | pollutant is used to determine AQI. The data in this report is preliminary and subject to change. |
| | 05/30 | | 05/31 | | 06/01 | | 06/02 | | 06/03 | | 06/04 | | 06/05 |
| | San Joaquin |
| | Stockton-University | 45 (O3-8) | 43 (O3-8) | 48 (PM25) | 33 (O3-8) | 21 (O3-8) | 31 (O3-8) | 34 (O3-8) |
| | Manteca | 29 (PM10) | 36 (PM10) | 45 (PM25) | 19 (PM25) | 20 (PM10) | 41 (PM10) | 24 (PM25) |
| | Tracy-Airport | 41 (O3-8) | 39 (O3-8) | 35 (PM25) | 67 (PM25) | 27 (PM10) | 29 (O3-8) | 30 (O3-8) |
| | Stanislaus |
| | Modesto-14th | 50 (O3-8) | 49 (O3-8) | 40 (PM25) | 36 (O3-8) | 24 (O3-8) | 36 (O3-8) | 44 (O3-8) |
| | Turlock | 61 (O3-8) | 67 (O3-8) | 43 (PM25) | 40 (O3-8) | 25 (O3-8) | 41 (O3-8) | 50 (O3-8) |
| | Merced |
| | Merced-M St. | 34 (PM10) | 30 (PM10) | 36 (PM25) | 19 (PM25) | 25 (PM10) | 32 (PM10) | 37 (PM10) |
| | Merced-Vierra | 67 (O3-8) | 80 (O3-8) | 50 (O3-8) | 45 (O3-8) | 26 (O3-8) | 44 (O3-8) | 47 (O3-8) |
| | Madera |
| | Madera-City | 64 (O3-8) | 74 (O3-8) | 44 (O3-8) | 44 (O3-8) | 29 (PM10) | 55 (PM10) | 55 (PM10) |
| | Madera | 64 (O3-8) | 77 (O3-8) | 45 (O3-8) | 44 (O3-8) | 26 (O3-8) | 46 (O3-8) | 50 (O3-8) |
| | Fresno |
| | Fresno-SSP | 54 (O3-8) | 64 (O3-8) | 43 (O3-8) | 42 (O3-8) | 22 (O3-8) |
| | Clovis | 71 (O3-8) | 87 (O3-8) | 49 (O3-8) | 44 (O3-8) | 24 (O3-8) | 44 (O3-8) | 101 (O3-8) |
| | Fresno-Garland | 47 (O3-8) | 54 (O3-8) | 41 (O3-8) | 38 (O3-8) | 23 (PM10) | 43 (PM25) | 67 (O3-8) |
| | Fresno-Foundry | 43 (PM25) | 46 (PM25) | 40 (PM25) | 37 (PM25) | 23 (PM25) | 52 (PM25) | 58 (PM25) |
| | Fresno-Pacific | 30 (PM25) | 39 (PM25) | 38 (PM25) | 37 (PM25) | 23 (PM25) | 44 (PM25) | 55 (PM25) |
| | Fresno-Drummond | 64 (O3-8) | 84 (O3-8) | 47 (O3-8) | 44 (O3-8) | 48 (PM10) | 40 (PM10) | 64 (O3-8) |
| | Parlier | 87 (O3-8) | 101 (O3-8) | 58 (O3-8) | 45 (O3-8) | 28 (O3-8) | 46 (O3-8) | 105 (O3-8) |
| | Tranquillity | 54 (O3-8) | 61 (O3-8) | 37 (O3-8) | 37 (O3-8) | 24 (O3-8) | 44 (O3-8) | 45 (O3-8) |
| | Huron | 33 (PM25) | 33 (PM25) | 27 (PM25) | 32 (PM25) | 23 (PM25) | 30 (PM25) | 33 (PM25) |
| | Kings |
| | Hanford | 64 (O3-8) | 84 (O3-8) | 45 (O3-8) | 44 (O3-8) | 51 (PM10) | 50 (PM25) | 77 (O3-8) |
| | Corcoran | 45 (PM10) | 50 (PM10) | 43 (PM10) | 28 (PM10) | 42 (PM10) | 48 (PM10) | 59 (PM10) |
| | Tulare |
| | Visalia-Ashland | 77 (O3-8) | 87 (O3-8) | 51 (O3-8) | 46 (O3-8) | 35 (O3-8) | 54 (O3-8) | 122 (O3-8) |
| | Porterville | 87 (O3-8) | 100 (O3-8) | 71 (O3-8) | 48 (PM25) | 44 (O3-8) | 47 (O3-8) | 119 (O3-8) |
| | Ash Mountain-SNP | 122 (O3-8) | 133 (O3-8) | 108 (O3-8) | 49 (O3-8) | 67 (O3-8) | 74 (O3-8) | 80 (O3-8) |
| | Lower Kaweah-SNP | 90 (O3-8) | 108 (O3-8) | 93 (O3-8) | 47 (O3-8) | 49 (O3-8) | 38 (O3-8) | 49 (O3-8) |
| | Kern |
| | Shafter | 67 (O3-8) | 97 (O3-8) | 42 (O3-8) | 39 (O3-8) | 31 (O3-8) | 40 (O3-8) | 101 (O3-8) |
| | Oildale | 74 (O3-8) | 112 (O3-8) | 45 (O3-8) | 44 (O3-8) | 39 (PM10) | 42 (O3-8) | 97 (O3-8) |
| | Bakersfield-Gold | 56 (PM10) | 51 (PM10) | 47 (PM10) | 45 (PM25) | 52 (PM25) | 38 (PM10) | 55 (PM10) |
| | Bakersfield-Calif | 77 (O3-8) | 112 (O3-8) | 46 (O3-8) | 40 (O3-8) | 38 (PM25) | 38 (O3-8) | 97 (O3-8) |
| | Bakersfield-Muni | 67 (O3-8) | 97 (O3-8) | 44 (O3-8) | 39 (O3-8) | 32 (O3-8) | 38 (O3-8) | 90 (O3-8) |
| | Edison | 97 (O3-8) | 122 (O3-8) | 54 (O3-8) | 45 (O3-8) | 41 (O3-8) | 48 (O3-8) | 101 (O3-8) |
| | Arvin-DiGiorgio | 101 (O3-8) | 119 (O3-8) | 54 (O3-8) | 42 (O3-8) | 43 (O3-8) | 43 (O3-8) | 90 (O3-8) |
| | Maricopa | 58 (O3-8) | 80 (O3-8) | 50 (O3-8) | 35 (O3-8) | 33 (O3-8) | 38 (O3-8) | 71 (O3-8) |
| | Lebec | 30 (PM25) | 37 (PM25) | 25 (PM25) | 23 (PM25) | 26 (PM25) | 15 (PM25) | 37 (PM25) |
| | Maximum Measured | Unofficial Days Over the Federal and State Standards¹ |
| | Value for This Year |
| | Pollutant | Maximum | Federal 2015 8-Hr Ozone | 9 | | Federal 1997 24-hr PM2.5 | 0 |
| | O3-1hr (ppb) | 88 | | Federal 2008 8-Hr Ozone | 2 | | Federal 24-hr PM10 | 0 |
| | O3-8hr (ppb) | 80 | | Federal 1997 8-Hr Ozone | 0 | | State 1-Hr Ozone | 0 |
| | PM 10 (µg/m³) | 72 | | Federal 1-Hr Ozone | 0 | | State 1997 8-Hr Ozone | 9 |
| | PM 2.5 (µg/m³) | 32.2 | | Federal 2006 24-hr PM2.5 | 0 | | State 24-hr PM10 | 22 |
| ¹Data affected by smoke, high winds, fireworks, and 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. |
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| Thursday, June 6, 2024 | Page 1 of 1 |