| | Ozone Eight-Hour Maximum (PPB) |
| | The information in this report is based on preliminary data and is subject to change. The real-time PM10/PM2.5 |
| | monitoring equipment is used for air quality forecasting and trend analysis. |
| | 05/16 | 05/17 | 05/18 | 05/19 | 05/20 | 05/21 | 05/22 |
| | San Joaquin |
| | Stockton-Hazelton | 41 | | 42 | | 46 | | 53 | | 53 | | 47 | | 43 |
| | Manteca |
| | Tracy-Airport | 49 | | 47 | | 52 | | 57 | | 62 | | 53 | | 47 |
| | Stanislaus |
| | Modesto-14th | 47 | | 47 | | 54 | | 60 | | 62 | | 55 | | 47 |
| | Turlock | 47 | | 52 | | 58 | | 62 | | 66 | | 57 | | 49 |
| | Merced |
| | Merced-Coffee | 50 | | 54 | | 69 | | 57 | | 51 |
| | Madera |
| | Madera | 46 | | 52 | | 57 | | 57 | | 65 | | 52 | | 51 |
| | Madera-City | 51 | | 57 | | 63 | | 63 | | 70 | | 58 | | 56 |
| | Fresno |
| | Clovis | 44 | | 53 | | 62 | | 59 | | 71 | | 58 | | 53 |
| | Fresno-Drummond | 41 | | 66 | | 58 | | 51 |
| | Fresno-Garland | 45 | | 52 | | 60 | | 58 | | 68 | | 57 | | 53 |
| | Fresno-SSP | 46 | | 55 | | 61 | | 60 | | 68 | | 59 | | 55 |
| | Huron |
| | Parlier | 39 | | 52 | | 64 | | 58 | | 68 | | 54 |
| | Tranquillity | 48 | | 52 | | 56 | | 58 | | 65 | | 53 | | 52 |
| | Kings |
| | Corcoran |
| | Hanford | 45 | | 53 | | 63 | | 63 | | 69 | | 59 | | 55 |
| | Tulare |
| | Ash Mountain-SNP | 53 | | 51 | | 60 | | 62 | | 71 | | 79 | | 55 |
| | Lower Kaweah-SNP | 54 | | 45 | | 56 | | 61 | | 67 | | 78 | | 53 |
| | Porterville | 44 | | 52 | | 59 | | 62 | | 70 | | 73 | | 52 |
| | Visalia, Church | 35 | | 42 | | 51 | | 49 | | 56 | | 55 | | 43 |
| | Kern |
| | Arvin-DiGiorgio | 50 | | 50 | | 58 | | 56 | | 70 | | 74 | | 52 |
| | Bakersfield-Calif | 51 | | 52 | | 63 | | 62 | | 72 | | 77 | | 55 |
| | Bakersfield-Muni | 50 | | 51 | | 61 | | 61 | | 72 | | 74 | | 53 |
| | Edison | 41 | | 42 | | 50 | | 48 | | 59 | | 62 | | 45 |
| | Lebec |
| | Maricopa | 51 | | 49 | | 57 | | 57 | | 70 | | 78 | | 52 |
| | Oildale | 46 | | 47 | | 56 | | 56 | | 61 | | 65 | | 47 |
| | Shafter | 46 | | 48 | | 56 | | 58 | | 63 | | 70 | | 52 |
| | District Maximum | 54 | | 57 | | 64 | | 63 | | 72 | | 79 | | 56 |
| | 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) | 103 | | PM10 State 24-hr | 42 | | State 1-Hr Ozone | 6 |
| | O3-8hr (ppb) | 86 | | PM2.5 Federal 2006 24-hr | 27 | | Federal 2008 8-Hr Ozone | 13 |
| | PM 10 (µg/m³) | 140 | | PM2.5 Federal 1997 24-hr | 2 | | Federal 1997 8-Hr Ozone | 1 |
| | PM 2.5 (µg/m³) | 68 | | State 1997 8-Hr Ozone | 19 |
| 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. |
| Make one change for clean air! Visit www.healthyairliving.com and become a part of the solution! |
| Thursday, May 23, 2013 | Page 1 of 1 |