SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., FEB. 01, 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 47 39 0.6 29 13 44 58 2 NW Coastal LA 43 36 1.0 26 18 32 68 3 SW Coastal LA 40 33 1.0 27 22 47 75 4 S Coastal LA 49 39 1.7 30 18 37 68 5 Southeast LA Co 51 40 2.3 31 17 42 66 6 W San Fernando Vly 51 43 1.3 24 12 34 56 7 E San Fernando Vly 52 44 1.1 28 11 41 55 8 W San Gabriel Vly 57 47 1.0 28 10 41 53 9 E San Gabriel Vly 58 49 0.7 16 10 30 53 10 Pomona Walnut Vly 56 46 0.9 31 16 41 64 11 S San Gabriel Vly 53 40 1.2 30 15 39 62 12 S Central LA Co 49 38 2.3 29 20 41 71 13 Santa Clarita Vly 50 43 0.4 25 7 23 40 15 San Gabriel Mts 53 46 0.8 27 8 37 44 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 46 38 0.6 24 10 31 53 Orange County: South Coast Air Basin 16 N Orange Co 56 45 0.8 35 17 37 66 17 Central Orange Co 50 42 1.4 32 17 46 66 18 N Coastal Orange Co 50 43 1.5 29 15 39 62 19 Saddleback Vly 53 47 0.5 35 9 39 50 20 Central Coastal 51 45 0.8 27 12 32 56 21 Capistrano Vly 50 45 0.5 24 9 26 50 Riverside County: South Coast Air Basin 22 Norco/Corona 55 47 1.0 42 20 37 71 23 Metro Riverside Co 54 47 1.1 47 25 40 81 24 Perris Vly 49 44 0.8 31 11 37 55 25 Lake Elsinore 49 45 0.5 23 8 23 44 26 Temecula Vly 45 41 0.4 22 5 22 38 27 Anza Vly 46 44 0.4 24 5 23 41 28 Hemet/San Jacinto 48 45 0.8 24 6 35 42 29 Banning 48 46 0.7 22 4 33 43 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 49 46 0.3 31 14 25 60 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 40 37 0.3 21 10 19 53 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 61 53 0.8 23 16 30 64 33 SW San Bernardino Vly 55 46 1.0 42 21 41 73 34 C San Bernardino Vly 48 43 1.0 27 14 43 60 35 E San Bernardino Vly 52 47 0.9 31 11 38 55 36 W San Bernardino Mtns 54 48 0.9 27 12 36 56 37 C San Bernardino Mtns 43 39 1.0 30 8 37 44 38 Big Bear Lake 47 45 0.9 25 13 35 58 San Bernardino County: Mojave Desert Air Basin 39 Phelan 48 45 0.8 29 8 34 44 40 Hesperia 38 33 0.8 33 10 37 53 41 Trona 34 26 0.4 17 5 13 28 42 Victorville 39 33 0.8 31 12 36 56 43 Yucca Vly 50 47 0.5 24 8 29 44 44 Barstow 41 31 0.6 23 6 42 40 45 Twentynine Palms 43 40 0.4 23 8 26 44 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., FEB. 01, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 43 Ozone Central Mojave Desert AQI: 44 PM2.5 Northern Mojave Desert AQI: 40 NO2 San Gabriel Mountains AQI: 44 PM2.5 Temecula/Anza Area AQI: 41 Ozone MODERATE in the following area(s): Antelope Valley AQI: 53 PM2.5 Big Bear Lake AQI: 58 PM2.5 Coachella Valley/Low Desert AQI: 60 PM2.5 Coastal Area AQI: 75 PM2.5 Hemet/Elsinore Area AQI: 55 PM2.5 Inland Orange County AQI: 66 PM2.5 Metropolitan Area AQI: 71 PM2.5 Riverside Valley AQI: 81 PM2.5 San Bernardino Mountains AQI: 56 PM2.5 San Bernardino Valley AQI: 73 PM2.5 San Fernando/Santa Clarita Valleys AQI: 56 PM2.5 San Gabriel Valley AQI: 64 PM2.5 Victor Valley AQI: 56 PM2.5 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ The weather will be slightly cooler on Sunday. Winds will be light. Inversion Base: 486 FT | Breaking Temperature: 71 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 1616 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 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 SUNDAY, FEBRUARY 01, 2026 IN THE SOUTH COAST AIR BASIN.