SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: WED., APR. 22, 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 56 52 0.4 22 7 29 48 2 NW Coastal LA 51 48 0.5 21 4 22 44 3 SW Coastal LA 46 44 0.2 22 5 24 41 4 S Coastal LA 52 50 0.4 21 6 29 46 5 Southeast LA Co 53 50 0.6 21 7 28 46 6 W San Fernando Vly 56 52 0.4 20 4 18 48 7 E San Fernando Vly 61 57 0.4 22 6 24 58 8 W San Gabriel Vly 59 55 0.2 22 7 15 51 9 E San Gabriel Vly 58 53 0.3 23 5 15 49 10 Pomona Walnut Vly 56 50 0.4 26 7 27 46 11 S San Gabriel Vly 55 52 0.4 22 7 28 48 12 S Central LA Co 52 50 0.6 22 7 28 46 13 Santa Clarita Vly 60 54 0.3 20 4 12 50 15 San Gabriel Mts 58 54 0.3 25 5 15 50 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 58 53 0.3 17 8 7 49 Orange County: South Coast Air Basin 16 N Orange Co 55 52 0.2 23 7 21 48 17 Central Orange Co 45 43 0.4 16 7 22 40 18 N Coastal Orange Co 49 48 0.3 18 5 26 44 19 Saddleback Vly 51 50 0.2 23 5 19 46 20 Central Coastal 49 48 0.3 19 4 17 44 21 Capistrano Vly 48 47 0.3 28 4 12 44 Riverside County: South Coast Air Basin 22 Norco/Corona 56 52 0.3 30 6 20 48 23 Metro Riverside Co 58 52 0.3 32 7 18 48 24 Perris Vly 57 52 0.3 26 7 18 48 25 Lake Elsinore 55 51 0.3 17 6 9 47 26 Temecula Vly 51 46 0.2 42 6 8 43 27 Anza Vly 55 52 0.2 50 4 7 48 28 Hemet/San Jacinto 57 52 0.3 36 5 15 48 29 Banning 60 55 0.3 28 6 8 51 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 62 59 0.2 67 7 6 64 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 54 52 0.2 36 4 5 48 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 55 49 0.4 28 7 18 45 33 SW San Bernardino Vly 55 50 0.4 30 7 24 46 34 C San Bernardino Vly 59 53 0.4 25 7 24 49 35 E San Bernardino Vly 58 53 0.3 27 6 19 49 36 W San Bernardino Mtns 56 50 0.3 25 7 18 46 37 C San Bernardino Mtns 58 53 0.3 25 5 19 49 38 Big Bear Lake 56 54 0.3 30 5 16 50 San Bernardino County: Mojave Desert Air Basin 39 Phelan 53 50 0.3 20 5 8 46 40 Hesperia 54 51 0.3 17 6 13 47 41 Trona 54 49 0.2 25 4 10 45 42 Victorville 55 52 0.3 21 6 3 48 43 Yucca Vly 60 57 0.2 33 5 9 58 44 Barstow 58 55 0.2 29 4 16 51 45 Twentynine Palms 56 54 0.2 33 5 8 50 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON WED., APR. 22, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 49 Ozone Big Bear Lake AQI: 50 Ozone Coastal Area AQI: 46 Ozone Hemet/Elsinore Area AQI: 48 Ozone Inland Orange County AQI: 46 Ozone Metropolitan Area AQI: 48 Ozone Riverside Valley AQI: 48 Ozone San Bernardino Mountains AQI: 49 Ozone San Bernardino Valley AQI: 49 Ozone San Gabriel Mountains AQI: 50 Ozone Temecula/Anza Area AQI: 48 Ozone Victor Valley AQI: 48 Ozone MODERATE in the following area(s): Banning Pass Area AQI: 51 Ozone Central Mojave Desert AQI: 58 Ozone Coachella Valley/Low Desert AQI: 64 Ozone Northern Mojave Desert AQI: 51 Ozone San Fernando/Santa Clarita Valleys AQI: 58 Ozone San Gabriel Valley AQI: 51 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Partly cloudy skies becoming mostly sunny skies with cool temperatures are expected. Inversion Base: 5434 FT | Breaking Temperature: 74 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 5761 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: BURN Area 53 - Mojave Desert Air Basin: BURN Area 55 - Salton Sea Air Basin: BURN 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 WEDNESDAY, APRIL 22, 2026 IN THE SOUTH COAST AIR BASIN.