SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: WED., JUL. 29, 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 63 55 0.4 30 17 22 66 2 NW Coastal LA 46 40 0.3 29 11 12 55 3 SW Coastal LA 42 36 0.2 30 10 10 53 4 S Coastal LA 45 41 0.2 35 9 21 50 5 Southeast LA Co 56 49 0.4 37 12 21 56 6 W San Fernando Vly 67 61 0.3 28 11 11 71 7 E San Fernando Vly 67 62 0.4 31 16 18 74 8 W San Gabriel Vly 81 69 0.4 35 17 15 97 9 E San Gabriel Vly 100 85 0.4 41 16 20 150 10 Pomona Walnut Vly 88 73 0.4 42 15 15 108 11 S San Gabriel Vly 67 57 0.3 38 15 21 62 12 S Central LA Co 51 45 0.3 32 11 15 55 13 Santa Clarita Vly 95 78 0.3 29 15 19 126 15 San Gabriel Mts 84 75 0.4 41 15 22 115 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 83 77 0.3 30 14 24 122 Orange County: South Coast Air Basin 16 N Orange Co 58 51 0.2 41 12 13 56 17 Central Orange Co 49 44 0.3 37 10 7 53 18 N Coastal Orange Co 41 37 0.2 34 7 17 39 19 Saddleback Vly 50 44 0.2 40 6 13 41 20 Central Coastal 45 40 0.2 32 6 13 37 21 Capistrano Vly 47 42 0.3 29 7 14 39 Riverside County: South Coast Air Basin 22 Norco/Corona 80 69 0.3 48 14 14 97 23 Metro Riverside Co 92 78 0.4 51 18 11 126 24 Perris Vly 83 65 0.3 40 13 24 84 25 Lake Elsinore 65 61 0.3 25 11 14 71 26 Temecula Vly 53 56 0.2 33 10 13 54 27 Anza Vly 64 58 0.2 36 6 13 61 28 Hemet/San Jacinto 69 64 0.3 36 8 27 80 29 Banning 84 73 0.3 33 8 29 108 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 76 73 0.2 44 12 13 108 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 50 56 0.2 34 7 11 54 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 87 74 0.5 38 14 22 112 33 SW San Bernardino Vly 83 70 0.4 48 15 24 100 34 C San Bernardino Vly 101 86 0.4 43 14 28 151 35 E San Bernardino Vly 95 81 0.3 41 12 27 136 36 W San Bernardino Mtns 91 81 0.4 38 11 26 136 37 C San Bernardino Mtns 100 84 0.3 41 7 29 147 38 Big Bear Lake 78 70 0.3 37 6 27 100 San Bernardino County: Mojave Desert Air Basin 39 Phelan 91 83 0.3 32 7 28 143 40 Hesperia 80 71 0.3 27 8 30 101 41 Trona 60 58 0.2 30 8 20 61 42 Victorville 83 73 0.3 29 9 29 108 43 Yucca Vly 73 65 0.2 33 9 20 84 44 Barstow 70 67 0.3 25 9 39 90 45 Twentynine Palms 68 63 0.2 34 9 18 77 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON WED., JUL. 29, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Big Bear Lake AQI: 100 Ozone Central Mojave Desert AQI: 84 Ozone Coastal Area AQI: 55 PM2.5 Hemet/Elsinore Area AQI: 84 Ozone Inland Orange County AQI: 53 PM2.5 Metropolitan Area AQI: 66 PM2.5 Northern Mojave Desert AQI: 90 Ozone Temecula/Anza Area AQI: 61 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Antelope Valley AQI: 122 Ozone Banning Pass Area AQI: 108 Ozone Coachella Valley/Low Desert AQI: 108 Ozone Riverside Valley AQI: 126 Ozone San Bernardino Mountains AQI: 147 Ozone San Fernando/Santa Clarita Valleys AQI: 126 Ozone San Gabriel Mountains AQI: 115 Ozone San Gabriel Valley AQI: 150 Ozone Victor Valley AQI: 143 Ozone UNHEALTHY in the following area(s): San Bernardino Valley AQI: 151 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Wednesday temperatures will be within two degrees of Tuesday, and still about 5 degrees above normal. Winds will be onshore, and a partly cloudy morning will give way to mostly sunny skies. Inversion Base: 1490 FT | Breaking Temperature: 84 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2488 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 WEDNESDAY, JULY 29, 2026 IN THE SOUTH COAST AIR BASIN.