SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: THU., JUL. 16, 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 58 49 0.6 34 13 27 58 2 NW Coastal LA 46 40 0.3 34 11 12 55 3 SW Coastal LA 36 31 0.1 41 10 12 53 4 S Coastal LA 39 31 0.2 54 8 18 50 5 Southeast LA Co 50 40 0.4 56 11 24 55 6 W San Fernando Vly 72 62 0.3 32 10 19 74 7 E San Fernando Vly 68 60 0.5 34 11 22 67 8 W San Gabriel Vly 71 59 0.4 41 12 18 64 9 E San Gabriel Vly 88 75 0.4 44 11 26 115 10 Pomona Walnut Vly 83 68 0.4 56 13 28 93 11 S San Gabriel Vly 58 47 0.3 55 12 23 56 12 S Central LA Co 41 34 0.2 44 10 18 53 13 Santa Clarita Vly 75 69 0.3 31 11 20 97 15 San Gabriel Mts 72 65 0.4 44 10 28 84 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 75 65 0.3 29 12 32 84 Orange County: South Coast Air Basin 16 N Orange Co 62 50 0.1 61 11 14 55 17 Central Orange Co 48 40 0.2 61 11 10 55 18 N Coastal Orange Co 38 33 0.2 53 7 16 49 19 Saddleback Vly 51 45 0.2 57 7 15 52 20 Central Coastal 44 40 0.2 50 7 15 46 21 Capistrano Vly 45 42 0.3 45 8 16 44 Riverside County: South Coast Air Basin 22 Norco/Corona 75 63 0.3 61 11 19 77 23 Metro Riverside Co 84 73 0.4 65 12 19 108 24 Perris Vly 80 70 0.4 47 11 24 100 25 Lake Elsinore 66 59 0.3 38 10 16 64 26 Temecula Vly 52 49 0.3 56 10 15 53 27 Anza Vly 62 54 0.2 64 7 13 55 28 Hemet/San Jacinto 66 60 0.3 47 9 24 67 29 Banning 77 67 0.3 39 8 18 90 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 62 0.2 79 8 12 74 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 45 43 0.2 45 7 12 42 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 85 75 0.5 36 13 28 115 33 SW San Bernardino Vly 79 67 0.4 61 13 32 90 34 C San Bernardino Vly 86 76 0.4 45 11 38 118 35 E San Bernardino Vly 85 74 0.4 47 10 27 112 36 W San Bernardino Mtns 84 74 0.4 38 9 32 112 37 C San Bernardino Mtns 90 81 0.4 43 7 31 136 38 Big Bear Lake 86 73 0.3 41 8 26 108 San Bernardino County: Mojave Desert Air Basin 39 Phelan 76 70 0.3 35 7 28 100 40 Hesperia 72 65 0.4 33 8 30 84 41 Trona 53 51 0.2 33 7 22 47 42 Victorville 73 66 0.3 34 10 27 87 43 Yucca Vly 74 65 0.2 35 9 19 84 44 Barstow 67 64 0.3 35 9 35 80 45 Twentynine Palms 64 58 0.2 37 9 17 61 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON THU., JUL. 16, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Antelope Valley AQI: 84 Ozone Banning Pass Area AQI: 90 Ozone Central Mojave Desert AQI: 84 Ozone Coachella Valley/Low Desert AQI: 74 Ozone Coastal Area AQI: 55 PM2.5 Hemet/Elsinore Area AQI: 100 Ozone Inland Orange County AQI: 55 PM2.5 Metropolitan Area AQI: 58 PM2.5 Northern Mojave Desert AQI: 80 Ozone San Fernando/Santa Clarita Valleys AQI: 97 Ozone San Gabriel Mountains AQI: 84 Ozone Temecula/Anza Area AQI: 55 PM10 Victor Valley AQI: 100 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Big Bear Lake AQI: 108 Ozone Riverside Valley AQI: 108 Ozone San Bernardino Mountains AQI: 136 Ozone San Bernardino Valley AQI: 118 Ozone San Gabriel Valley AQI: 115 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Mostly sunny skies with cooler temperatures are expected. Inversion Base: 1454 FT | Breaking Temperature: 91 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2143 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: MARGINAL-BURN Burning is prohibited in the following source/receptor areas: 9, 23, 32, 34, 35, 36, 37, 38 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 THURSDAY, JULY 16, 2026 IN THE SOUTH COAST AIR BASIN.