SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., AUG. 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 59 55 0.7 22 12 16 56 2 NW Coastal LA 51 45 0.3 23 10 13 53 3 SW Coastal LA 44 38 0.2 24 9 9 50 4 S Coastal LA 45 42 0.3 26 9 12 50 5 Southeast LA Co 56 49 0.5 29 10 19 53 6 W San Fernando Vly 62 55 0.4 23 10 8 53 7 E San Fernando Vly 61 56 0.5 24 11 14 55 8 W San Gabriel Vly 61 56 0.4 29 12 14 56 9 E San Gabriel Vly 67 71 0.4 38 11 16 101 10 Pomona Walnut Vly 65 59 0.4 39 11 17 64 11 S San Gabriel Vly 62 55 0.4 33 11 19 55 12 S Central LA Co 52 46 0.2 24 10 11 53 13 Santa Clarita Vly 72 63 0.3 24 9 13 77 15 San Gabriel Mts 62 61 0.4 38 10 15 71 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 65 57 0.3 26 12 9 58 Orange County: South Coast Air Basin 16 N Orange Co 58 49 0.2 37 10 14 53 17 Central Orange Co 53 44 0.3 27 10 7 53 18 N Coastal Orange Co 52 47 0.2 27 7 11 44 19 Saddleback Vly 53 51 0.1 37 5 10 47 20 Central Coastal 53 49 0.2 28 7 9 45 21 Capistrano Vly 48 46 0.3 30 8 9 44 Riverside County: South Coast Air Basin 22 Norco/Corona 56 52 0.4 47 9 11 50 23 Metro Riverside Co 63 58 0.6 51 11 12 61 24 Perris Vly 56 52 0.4 41 9 19 50 25 Lake Elsinore 44 41 0.3 29 9 9 50 26 Temecula Vly 44 38 0.3 35 8 9 44 27 Anza Vly 42 40 0.2 40 5 8 37 28 Hemet/San Jacinto 46 43 0.3 39 7 19 40 29 Banning 47 43 0.3 37 6 16 40 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 51 0.2 46 6 7 47 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 44 41 0.2 34 5 8 38 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 61 59 0.6 37 13 15 64 33 SW San Bernardino Vly 61 57 0.5 47 12 20 58 34 C San Bernardino Vly 64 59 0.4 44 10 25 64 35 E San Bernardino Vly 60 57 0.5 42 7 22 58 36 W San Bernardino Mtns 58 56 0.4 36 10 19 54 37 C San Bernardino Mtns 58 53 0.4 41 5 23 49 38 Big Bear Lake 53 49 0.3 39 5 21 45 San Bernardino County: Mojave Desert Air Basin 39 Phelan 55 53 0.3 30 6 15 49 40 Hesperia 51 47 0.4 26 7 21 44 41 Trona 59 52 0.2 22 7 25 48 42 Victorville 53 49 0.3 28 9 14 50 43 Yucca Vly 51 45 0.2 35 5 16 42 44 Barstow 55 50 0.3 25 8 38 46 45 Twentynine Palms 44 42 0.2 34 5 15 39 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., AUG. 30, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Banning Pass Area AQI: 40 Ozone Big Bear Lake AQI: 45 Ozone Central Mojave Desert AQI: 42 Ozone Coachella Valley/Low Desert AQI: 47 Ozone Hemet/Elsinore Area AQI: 50 PM2.5 Northern Mojave Desert AQI: 48 Ozone Temecula/Anza Area AQI: 44 PM2.5 Victor Valley AQI: 50 PM2.5 MODERATE in the following area(s): Antelope Valley AQI: 58 Ozone Coastal Area AQI: 53 PM2.5 Inland Orange County AQI: 53 PM2.5 Metropolitan Area AQI: 56 PM2.5 Riverside Valley AQI: 61 Ozone San Bernardino Mountains AQI: 54 Ozone San Bernardino Valley AQI: 64 Ozone San Fernando/Santa Clarita Valleys AQI: 77 Ozone San Gabriel Mountains AQI: 71 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): San Gabriel Valley AQI: 101 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Mostly sunny skies with cooler temperatures are expected. Inversion Base: 1496 FT | Breaking Temperature: 87 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2026 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: MARGINAL-BURN Burning is prohibited in the following source/receptor areas: 9 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, AUGUST 30, 2026 IN THE SOUTH COAST AIR BASIN.