SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: WED., AUG. 05, 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 61 51 0.6 26 14 22 60 2 NW Coastal LA 45 39 0.4 26 11 13 55 3 SW Coastal LA 42 35 0.6 27 11 14 55 4 S Coastal LA 50 44 0.2 28 11 23 55 5 Southeast LA Co 57 47 0.5 32 12 19 56 6 W San Fernando Vly 70 63 0.5 27 12 11 77 7 E San Fernando Vly 68 60 0.5 28 14 18 67 8 W San Gabriel Vly 74 64 0.3 34 15 14 80 9 E San Gabriel Vly 92 77 0.4 44 14 20 122 10 Pomona Walnut Vly 81 70 0.4 44 13 17 100 11 S San Gabriel Vly 67 55 0.4 38 13 18 58 12 S Central LA Co 52 42 0.2 27 12 15 56 13 Santa Clarita Vly 89 77 0.3 27 14 21 122 15 San Gabriel Mts 83 75 0.4 44 14 27 115 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 79 75 0.3 29 9 32 115 Orange County: South Coast Air Basin 16 N Orange Co 60 53 0.1 40 12 11 56 17 Central Orange Co 47 43 0.3 29 12 8 56 18 N Coastal Orange Co 44 40 0.2 31 10 19 53 19 Saddleback Vly 52 46 0.2 40 11 15 55 20 Central Coastal 45 42 0.3 34 10 15 53 21 Capistrano Vly 44 41 0.3 36 10 15 53 Riverside County: South Coast Air Basin 22 Norco/Corona 71 63 0.4 50 13 15 77 23 Metro Riverside Co 87 77 0.6 54 16 14 122 24 Perris Vly 88 77 0.4 45 14 21 122 25 Lake Elsinore 73 66 0.3 36 13 16 87 26 Temecula Vly 51 49 0.3 38 10 15 53 27 Anza Vly 60 58 0.2 42 9 14 61 28 Hemet/San Jacinto 76 72 0.3 42 11 22 105 29 Banning 96 83 0.3 39 11 22 143 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 71 65 0.2 46 10 14 84 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 49 43 0.2 37 9 12 50 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 90 79 0.5 39 15 27 129 33 SW San Bernardino Vly 78 68 0.4 49 14 25 93 34 C San Bernardino Vly 98 85 0.4 45 15 27 150 35 E San Bernardino Vly 103 90 0.5 46 13 22 161 36 W San Bernardino Mtns 98 85 0.4 39 14 25 150 37 C San Bernardino Mtns 109 98 0.3 43 9 23 182 38 Big Bear Lake 77 72 0.3 41 9 22 105 San Bernardino County: Mojave Desert Air Basin 39 Phelan 88 81 0.3 35 9 23 136 40 Hesperia 77 72 0.3 31 9 22 105 41 Trona 61 57 0.2 32 9 15 58 42 Victorville 80 72 0.3 36 10 20 105 43 Yucca Vly 76 70 0.2 41 9 18 100 44 Barstow 77 65 0.3 47 9 29 84 45 Twentynine Palms 55 50 0.2 41 9 17 50 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON WED., AUG. 05, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Central Mojave Desert AQI: 100 Ozone Coachella Valley/Low Desert AQI: 84 Ozone Coastal Area AQI: 55 PM2.5 Inland Orange County AQI: 56 PM2.5 Metropolitan Area AQI: 60 PM2.5 Northern Mojave Desert AQI: 84 Ozone Temecula/Anza Area AQI: 61 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Antelope Valley AQI: 115 Ozone Banning Pass Area AQI: 143 Ozone Big Bear Lake AQI: 105 Ozone Hemet/Elsinore Area AQI: 122 Ozone Riverside Valley AQI: 122 Ozone San Fernando/Santa Clarita Valleys AQI: 122 Ozone San Gabriel Mountains AQI: 115 Ozone San Gabriel Valley AQI: 122 Ozone Victor Valley AQI: 136 Ozone UNHEALTHY in the following area(s): San Bernardino Mountains AQI: 182 Ozone San Bernardino Valley AQI: 161 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ High temperatures in inland areas will continue into Wednesday. There is a Heat Advisory covering the San Bernardino and Riverside County Valleys, Inland Empire, San Bernardino County and Riverside County Mountains, and San Gabriel Mountains. There is an Extreme Heat Warning covering the Apple and Lucerne Valleys, Coachella Valley, San Gorgonio Pass near Banning, Mojave Desert, Salton Sea area, Antelope Valley, and Antelope Valley foothills. Overnight and morning fog will impact coastal areas. Inversion Base: 1511 FT | Breaking Temperature: 90 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 2296 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, AUGUST 05, 2026 IN THE SOUTH COAST AIR BASIN.