SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: FRI., JUL. 10, 2026 -------------------------------------------------------------------------------- SRA AREA 1-HR 8-HR 8-HR 24-HR 24-HR 1-HR MAX NUMBER OZONE OZONE CO PM10 PM2.5 NO2 AQI PPB PPB PPM UG/M3 UG/M3 PPB -------------------------------------------------------------------------------- Los Angeles County: South Coast Air Basin 1 Central LA Co 62 57 0.5 27 13 21 58 2 NW Coastal LA 47 43 0.3 28 9 11 50 3 SW Coastal LA 40 36 0.2 33 12 12 56 4 S Coastal LA 48 44 0.2 43 15 22 62 5 Southeast LA Co 57 50 0.3 44 11 18 55 6 W San Fernando Vly 73 67 0.3 28 12 13 90 7 E San Fernando Vly 71 64 0.4 28 13 19 80 8 W San Gabriel Vly 74 65 0.3 32 13 14 84 9 E San Gabriel Vly 84 74 0.4 32 12 23 112 10 Pomona Walnut Vly 75 67 0.3 45 13 18 90 11 S San Gabriel Vly 67 58 0.3 43 12 16 61 12 S Central LA Co 50 45 0.1 35 10 13 53 13 Santa Clarita Vly 91 84 0.3 28 13 20 147 15 San Gabriel Mts 83 76 0.3 40 12 22 118 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 89 83 0.3 30 9 18 143 Orange County: South Coast Air Basin 16 N Orange Co 58 52 0.1 48 11 12 55 17 Central Orange Co 49 46 0.2 48 11 7 55 18 N Coastal Orange Co 41 39 0.2 44 8 18 44 19 Saddleback Vly 46 44 0.2 48 7 14 44 20 Central Coastal 41 40 0.2 43 6 14 40 21 Capistrano Vly 43 41 0.3 41 6 15 38 Riverside County: South Coast Air Basin 22 Norco/Corona 76 68 0.3 50 13 14 93 23 Metro Riverside Co 87 78 0.5 51 15 12 126 24 Perris Vly 87 76 0.3 43 13 26 118 25 Lake Elsinore 70 64 0.3 41 14 15 80 26 Temecula Vly 55 50 0.3 42 12 13 56 27 Anza Vly 71 65 0.2 44 6 11 84 28 Hemet/San Jacinto 71 66 0.3 41 8 26 87 29 Banning 86 78 0.3 36 9 22 126 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- SRA AREA 1-HR 8-HR 8-HR 24-HR 24-HR 1-HR MAX NUMBER OZONE OZONE CO PM10 PM2.5 NO2 AQI PPB PPB PPM UG/M3 UG/M3 PPB -------------------------------------------------------------------------------- Riverside County: Salton Sea Air Basin 30 Coachella Vly 80 76 0.2 49 11 9 118 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 55 50 0.2 36 13 9 58 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 81 74 0.4 44 12 24 112 33 SW San Bernardino Vly 75 68 0.3 50 14 27 93 34 C San Bernardino Vly 98 87 0.3 41 12 33 154 35 E San Bernardino Vly 105 87 0.4 41 11 30 154 36 W San Bernardino Mtns 91 82 0.3 41 10 27 140 37 C San Bernardino Mtns 102 89 0.3 40 6 31 159 38 Big Bear Lake 90 80 0.3 38 6 28 133 San Bernardino County: Mojave Desert Air Basin 39 Phelan 92 83 0.3 36 6 22 143 40 Hesperia 81 77 0.3 36 8 27 122 41 Trona 63 59 0.2 33 6 25 64 42 Victorville 89 83 0.3 36 9 21 143 43 Yucca Vly 80 76 0.2 33 8 17 118 44 Barstow 83 74 0.2 30 8 35 112 45 Twentynine Palms 71 67 0.2 34 8 15 90 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON FRI., JUL. 10, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Coastal Area AQI: 62 PM2.5 Inland Orange County AQI: 55 PM2.5 Metropolitan Area AQI: 58 PM2.5 Temecula/Anza Area AQI: 84 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Antelope Valley AQI: 143 Ozone Banning Pass Area AQI: 126 Ozone Big Bear Lake AQI: 133 Ozone Central Mojave Desert AQI: 118 Ozone Coachella Valley/Low Desert AQI: 118 Ozone Hemet/Elsinore Area AQI: 118 Ozone Northern Mojave Desert AQI: 112 Ozone Riverside Valley AQI: 126 Ozone San Fernando/Santa Clarita Valleys AQI: 147 Ozone San Gabriel Mountains AQI: 118 Ozone San Gabriel Valley AQI: 112 Ozone Victor Valley AQI: 143 Ozone UNHEALTHY in the following area(s): San Bernardino Mountains AQI: 159 Ozone San Bernardino Valley AQI: 154 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ The warming trend will continue for Friday and Saturday a few degrees cooler. Night and morning coastal low clouds will spread into the far western valleys. Inversion Base: 1470 FT | Breaking Temperature: 88 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 1818 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: NO-BURN Area 53 - Mojave Desert Air Basin: BURN Area 55 - Salton Sea Air Basin: MARGINAL-BURN Burning is prohibited in source/receptor area 30 Beach Fire Ring Wood Burning: Allowed in All Areas Residential Wood Burning: Allowed in All Areas Coachella Valley Rule 403.1 Wind Forecast: Winds Above 25 MPH ------------------------------------------------------------------------ ATTENTION ALL SCHOOLS AND INDUSTRIES THIS IS THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT NO AIR POLLUTION OR HEALTH ADVISIORY EPISODES ARE PREDICTED FOR FRIDAY, JULY 10, 2026 IN THE SOUTH COAST AIR BASIN.