SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: THU., JUL. 30, 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 64 56 0.4 33 18 22 68 2 NW Coastal LA 47 40 0.3 32 12 8 56 3 SW Coastal LA 41 34 0.6 34 10 12 53 4 S Coastal LA 45 41 0.3 40 9 20 50 5 Southeast LA Co 60 51 0.3 41 12 19 56 6 W San Fernando Vly 79 70 0.3 30 11 12 100 7 E San Fernando Vly 73 66 0.3 33 16 19 87 8 W San Gabriel Vly 85 73 0.3 36 16 18 108 9 E San Gabriel Vly 98 84 0.4 39 13 20 147 10 Pomona Walnut Vly 94 78 0.4 44 14 15 126 11 S San Gabriel Vly 72 60 0.3 42 14 18 67 12 S Central LA Co 54 45 0.2 36 11 14 55 13 Santa Clarita Vly 97 84 0.3 30 15 17 147 15 San Gabriel Mts 88 79 0.4 39 14 26 129 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 78 74 0.3 29 12 30 112 Orange County: South Coast Air Basin 16 N Orange Co 69 57 0.1 45 12 11 58 17 Central Orange Co 54 46 0.3 43 11 10 55 18 N Coastal Orange Co 44 39 0.3 39 6 17 36 19 Saddleback Vly 65 54 0.2 44 6 14 50 20 Central Coastal 53 45 0.2 35 6 14 42 21 Capistrano Vly 53 47 0.3 32 7 15 44 Riverside County: South Coast Air Basin 22 Norco/Corona 90 72 0.3 51 15 14 105 23 Metro Riverside Co 99 82 0.4 55 19 12 140 24 Perris Vly 87 75 0.4 44 14 23 115 25 Lake Elsinore 77 66 0.3 27 10 15 87 26 Temecula Vly 57 55 0.2 40 10 14 53 27 Anza Vly 66 62 0.2 46 8 12 74 28 Hemet/San Jacinto 78 69 0.3 40 12 25 97 29 Banning 92 76 0.3 36 12 25 118 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 83 72 0.2 57 12 11 105 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 60 56 0.2 37 7 11 54 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 99 87 0.5 38 14 23 154 33 SW San Bernardino Vly 94 77 0.4 51 16 24 122 34 C San Bernardino Vly 108 93 0.4 48 14 27 169 35 E San Bernardino Vly 110 92 0.4 46 13 26 166 36 W San Bernardino Mtns 99 91 0.4 37 10 26 164 37 C San Bernardino Mtns 100 91 0.4 44 7 28 164 38 Big Bear Lake 78 72 0.3 40 7 27 105 San Bernardino County: Mojave Desert Air Basin 39 Phelan 86 79 0.3 29 6 29 129 40 Hesperia 83 77 0.3 21 7 30 122 41 Trona 59 58 0.2 23 6 24 61 42 Victorville 88 80 0.3 25 9 29 133 43 Yucca Vly 80 67 0.2 34 9 20 90 44 Barstow 71 68 0.3 26 8 43 93 45 Twentynine Palms 68 62 0.2 35 9 18 74 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON THU., JUL. 30, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Central Mojave Desert AQI: 90 Ozone Coastal Area AQI: 56 PM2.5 Inland Orange County AQI: 55 PM2.5 Metropolitan Area AQI: 68 PM2.5 Northern Mojave Desert AQI: 93 Ozone Temecula/Anza Area AQI: 74 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Antelope Valley AQI: 112 Ozone Banning Pass Area AQI: 118 Ozone Big Bear Lake AQI: 105 Ozone Coachella Valley/Low Desert AQI: 105 Ozone Hemet/Elsinore Area AQI: 115 Ozone Riverside Valley AQI: 140 Ozone San Fernando/Santa Clarita Valleys AQI: 147 Ozone San Gabriel Mountains AQI: 129 Ozone San Gabriel Valley AQI: 147 Ozone Victor Valley AQI: 133 Ozone UNHEALTHY in the following area(s): San Bernardino Mountains AQI: 164 Ozone San Bernardino Valley AQI: 169 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Thursday will start off partly cloudy west of the Santa Ana mountains before becoming sunny. Temperatures will be 1-3 degrees warmer than Thursday, and winds will be light to moderate. Inversion Base: 1524 FT | Breaking Temperature: 86 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2360 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 Below 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 THURSDAY, JULY 30, 2026 IN THE SOUTH COAST AIR BASIN.