SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: WED., OCT. 07, 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 71 63 0.8 51 12 48 77 2 NW Coastal LA 60 54 0.5 44 11 26 55 3 SW Coastal LA 56 51 0.2 47 10 18 53 4 S Coastal LA 61 54 0.4 44 9 27 50 5 Southeast LA Co 67 61 0.7 48 12 41 71 6 W San Fernando Vly 72 65 0.6 39 9 24 84 7 E San Fernando Vly 80 67 0.7 49 9 38 90 8 W San Gabriel Vly 82 70 0.5 48 9 32 100 9 E San Gabriel Vly 84 69 0.7 31 9 38 97 10 Pomona Walnut Vly 82 66 0.7 39 12 52 87 11 S San Gabriel Vly 75 65 0.5 48 13 34 84 12 S Central LA Co 65 60 0.5 47 11 33 67 13 Santa Clarita Vly 82 72 0.3 38 7 26 105 15 San Gabriel Mts 82 70 0.5 46 7 34 100 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 60 58 0.4 30 10 34 61 Orange County: South Coast Air Basin 16 N Orange Co 73 65 0.5 41 13 24 84 17 Central Orange Co 60 54 0.5 35 12 20 56 18 N Coastal Orange Co 57 54 0.4 36 7 25 50 19 Saddleback Vly 72 63 0.4 41 5 29 77 20 Central Coastal 63 58 0.4 30 7 24 61 21 Capistrano Vly 64 58 0.4 28 8 26 61 Riverside County: South Coast Air Basin 22 Norco/Corona 82 71 0.6 50 10 34 101 23 Metro Riverside Co 90 76 0.6 54 13 44 118 24 Perris Vly 79 70 0.6 42 8 38 100 25 Lake Elsinore 74 68 0.4 28 8 27 93 26 Temecula Vly 60 56 0.4 30 6 23 54 27 Anza Vly 62 56 0.3 33 5 20 54 28 Hemet/San Jacinto 67 63 0.5 34 6 37 77 29 Banning 78 64 0.5 31 4 39 80 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 60 56 0.2 39 10 17 54 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 53 50 0.2 25 5 14 46 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 91 74 0.5 35 10 38 112 33 SW San Bernardino Vly 85 70 0.7 49 13 46 100 34 C San Bernardino Vly 88 73 0.6 38 9 43 108 35 E San Bernardino Vly 91 72 0.6 47 7 40 105 36 W San Bernardino Mtns 84 71 0.5 36 7 38 101 37 C San Bernardino Mtns 80 66 0.6 37 6 36 87 38 Big Bear Lake 61 57 0.6 34 5 37 58 San Bernardino County: Mojave Desert Air Basin 39 Phelan 59 57 0.5 33 5 35 58 40 Hesperia 56 52 0.5 33 7 37 48 41 Trona 49 45 0.3 14 4 9 42 42 Victorville 60 55 0.5 33 9 35 51 43 Yucca Vly 54 50 0.3 26 5 26 46 44 Barstow 59 54 0.4 27 6 48 50 45 Twentynine Palms 48 46 0.3 25 5 23 43 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON WED., OCT. 07, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Central Mojave Desert AQI: 46 Ozone Northern Mojave Desert AQI: 50 Ozone MODERATE in the following area(s): Antelope Valley AQI: 61 Ozone Banning Pass Area AQI: 80 Ozone Big Bear Lake AQI: 58 Ozone Coachella Valley/Low Desert AQI: 54 Ozone Coastal Area AQI: 61 Ozone Hemet/Elsinore Area AQI: 100 Ozone Inland Orange County AQI: 77 Ozone Metropolitan Area AQI: 84 Ozone San Gabriel Mountains AQI: 100 Ozone San Gabriel Valley AQI: 100 Ozone Temecula/Anza Area AQI: 54 Ozone Victor Valley AQI: 58 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Riverside Valley AQI: 118 Ozone San Bernardino Mountains AQI: 101 Ozone San Bernardino Valley AQI: 112 Ozone San Fernando/Santa Clarita Valleys AQI: 105 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ High temperatures will remain well above average, with widespread Major to Extreme HeatRisk continuing. Low clouds and dense coastal fogis expected near coast. Inversion Base: 486 FT | Breaking Temperature: 85 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 1961 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: 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 WEDNESDAY, OCTOBER 07, 2026 IN THE SOUTH COAST AIR BASIN.