| | AQI by Site |
| | AQI is based on measured data at each site. Some sites measure only ozone or only PM-2.5. In |
| | summer only those sites with ozone measurements estimate the AQI correctly, and in winter only |
| | those sites with PM-2.5 measurements estimate the AQI correctly. The information in this |
| | report is based on preliminary data and is subject to change. The real-time PM-10/PM-2.5 |
| | monitoring eqiupment is used for air quality forecasting and trend analysis. |
| | 06/26 | | 06/27 | | 06/28 | | 06/29 | | 06/30 | | 07/01 | | 07/02 |
| | San Joaquin |
| | Stockton-Hazelton | 49 (PM25) | 54 (O3-8) | 67 (O3-8) | 71 (O3-8) | 58 (O3-8) | 52 (PM25) | 45 (PM25) |
| | Tracy-Airport | 84 (O3-8) | 100 (O3-8) | 104 (O3-8) | 90 (O3-8) | 116 (O3-8) | 80 (O3-8) | 64 (O3-8) |
| | Stanislaus |
| | Modesto-14th | 58 (O3-8) | 97 (O3-8) | 101 (O3-8) | 87 (O3-8) | 106 (O3-8) | 77 (O3-8) | 71 (O3-8) |
| | Turlock | 77 (O3-8) | 111 (O3-8) | 109 (O3-8) | 101 (O3-8) | 111 (O3-8) | 111 (O3-8) | 93 (O3-8) |
| | Merced |
| | Merced-Coffee | 77 (O3-8) | 97 (O3-8) | 111 (O3-8) | 111 (O3-8) | 111 (O3-8) | 104 (O3-8) | 101 (O3-8) |
| | Madera |
| | Madera | 61 (O3-8) | 97 (O3-8) | 111 (O3-8) | 154 (O3-8) | 101 (O3-8) | 97 (O3-8) | 74 (O3-8) |
| | Fresno |
| | Clovis | 71 (O3-8) | 127 (O3-8) | 161 (O3-8) | 150 (O3-8) | 122 (O3-8) | 132 (O3-8) | 111 (O3-8) |
| | Fresno-Drummond | 61 (O3-8) | 129 (O3-8) | 161 (O3-8) | 154 (O3-8) | 122 (O3-8) | 111 (O3-8) | 106 (O3-8) |
| | Fresno-First | 80 (O3-8) | 127 (O3-8) | 172 (O3-8) | 164 (O3-8) | 127 (O3-8) | 127 (O3-8) | 111 (O3-8) |
| | Fresno-SSP | 64 (O3-8) | 111 (O3-8) | 142 (O3-8) | 172 (O3-8) | 116 (O3-8) | 111 (O3-8) | 93 (O3-8) |
| | Parlier | 51 (O3-8) | 109 (O3-8) | 114 (O3-8) | 104 (O3-8) | 97 (O3-8) | 109 (O3-8) | 93 (O3-8) |
| | Kings |
| | Corcoran | 64 (O3-8) | 109 (O3-8) | 106 (O3-8) | 106 (O3-8) | 87 (O3-8) | 101 (O3-8) | 101 (O3-8) |
| | Hanford |
| | Tulare |
| | Ash Mountain-SNP | 116 (O3-8) | 127 (O3-8) | 142 (O3-8) | 93 (O3-8) | 119 (O3-8) | 140 (O3-8) | 122 (O3-8) |
| | Lower Kaweah-SNP | 77 (O3-8) | 64 (O3-8) | 67 (O3-8) | 54 (O3-8) | 74 (O3-8) | 90 (O3-8) | 80 (O3-8) |
| | Visalia, Church | 77 (O3-8) | 145 (O3-8) | 124 (O3-8) | 127 (O3-8) | 111 (O3-8) | 111 (O3-8) | 114 (O3-8) |
| | Kern |
| | Arvin | 97 (O3-8) | 150 (O3-8) | 147 (O3-8) | 116 (O3-8) | 122 (O3-8) | 166 (O3-8) | N/A () |
| | Bakersfield-Calif | 54 (O3-8) | 116 (O3-8) | 129 (O3-8) | 93 (O3-8) | 84 (O3-8) | 116 (O3-8) | 100 (O3-8) |
| | Bakersfield-Gold | 46 (O3-8) | 101 (O3-8) | 114 (O3-8) | 67 (O3-8) | 71 (O3-8) | 101 (O3-8) | 84 (O3-8) |
| | Edison | 77 (O3-8) | 127 (O3-8) | 140 (O3-8) | 101 (O3-8) | 100 (O3-8) | 137 (O3-8) | 111 (O3-8) |
| | Maricopa | 74 (O3-8) | 116 (O3-8) | 106 (O3-8) | 93 (O3-8) | 90 (O3-8) | 132 (O3-8) | 111 (O3-8) |
| | Oildale | 58 (O3-8) | 116 (O3-8) | 132 (O3-8) | 84 (O3-8) | 100 (O3-8) | 119 (O3-8) | 97 (O3-8) |
| | Shafter | 46 (O3-8) | 80 (O3-8) | 87 (O3-8) | 58 (O3-8) | 84 (O3-8) | 109 (O3-8) | 93 (O3-8) |
| | Maximum Measured | Unofficial Days Over the Federal and State Standards¹ |
| | Value for This Year |
| | Pollutant | Maximum |
| | PM10 Federal 24-hr | 0 | | Federal 1-Hr Ozone | 0 |
| | O3-1hr (ppb) | 119 | | PM10 State 24-hr | 70 | | State 1-Hr Ozone | 19 |
| | O3-8hr (ppb) | 104 | | PM2.5 Federal 2006 24-hr | 30 | | Federal 2008 8-Hr Ozone | 30 |
| | PM 10 (µg/m³) | 113 | | PM2.5 Federal 1997 24-hr | 7 | | Federal 1997 8-Hr Ozone | 17 |
| | PM 2.5 (µg/m³) | 76 | | State 1997 8-Hr Ozone | 39 |
| ¹Some of the days over the standards shown above may be the result of “Natural Events” such as extreme |
| wind episodes, or “Exceptional Events” such as wildfires and would not count as violations of the federal |
| standard. |
| Friday, July 03, 2009 | Page 1 of 1 |