SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., MAR. 22, 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 75 63 0.4 34 16 28 77 2 NW Coastal LA 64 55 0.5 30 14 14 60 3 SW Coastal LA 54 47 0.3 32 13 14 58 4 S Coastal LA 59 52 0.4 30 12 18 56 5 Southeast LA Co 64 56 0.5 32 14 24 60 6 W San Fernando Vly 73 66 0.6 27 13 20 87 7 E San Fernando Vly 84 71 0.5 32 15 22 101 8 W San Gabriel Vly 104 83 0.4 32 16 16 143 9 E San Gabriel Vly 95 81 0.5 28 17 21 136 10 Pomona Walnut Vly 84 74 0.6 32 19 27 112 11 S San Gabriel Vly 70 59 0.5 32 17 23 66 12 S Central LA Co 60 52 0.5 32 14 21 60 13 Santa Clarita Vly 77 67 0.3 26 13 13 90 15 San Gabriel Mts 77 66 0.5 30 13 18 87 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 59 56 0.4 17 11 14 55 Orange County: South Coast Air Basin 16 N Orange Co 68 59 0.2 36 15 15 64 17 Central Orange Co 61 54 0.4 26 14 15 60 18 N Coastal Orange Co 61 54 0.4 27 7 17 50 19 Saddleback Vly 60 55 0.3 36 4 18 51 20 Central Coastal 61 56 0.3 28 7 14 54 21 Capistrano Vly 59 56 0.4 30 8 13 54 Riverside County: South Coast Air Basin 22 Norco/Corona 75 68 0.5 47 14 22 93 23 Metro Riverside Co 83 74 0.6 65 18 27 112 24 Perris Vly 75 70 0.5 39 13 24 100 25 Lake Elsinore 72 67 0.4 30 13 13 90 26 Temecula Vly 52 48 0.3 33 8 12 44 27 Anza Vly 53 51 0.3 37 4 11 47 28 Hemet/San Jacinto 63 58 0.4 35 9 21 61 29 Banning 73 64 0.4 31 8 17 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 61 57 0.2 75 5 10 61 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 52 49 0.2 28 4 10 45 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 92 81 0.6 24 17 19 136 33 SW San Bernardino Vly 81 72 0.6 46 19 24 105 34 C San Bernardino Vly 95 83 0.5 41 15 26 143 35 E San Bernardino Vly 91 82 0.5 40 12 25 140 36 W San Bernardino Mtns 73 65 0.5 30 14 26 84 37 C San Bernardino Mtns 88 75 0.5 39 10 28 115 38 Big Bear Lake 79 71 0.5 36 7 24 101 San Bernardino County: Mojave Desert Air Basin 39 Phelan 55 54 0.4 29 7 30 50 40 Hesperia 69 58 0.5 31 10 32 61 41 Trona 50 47 0.3 27 6 8 44 42 Victorville 64 58 0.4 30 9 33 61 43 Yucca Vly 61 57 0.3 27 4 18 58 44 Barstow 55 53 0.4 28 7 38 49 45 Twentynine Palms 51 50 0.3 28 4 17 46 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., MAR. 22, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Northern Mojave Desert AQI: 49 Ozone Temecula/Anza Area AQI: 47 Ozone MODERATE in the following area(s): Antelope Valley AQI: 55 PM2.5 Banning Pass Area AQI: 80 Ozone Central Mojave Desert AQI: 58 Ozone Coachella Valley/Low Desert AQI: 61 PM10 Coastal Area AQI: 60 PM2.5 Hemet/Elsinore Area AQI: 100 Ozone Inland Orange County AQI: 60 PM2.5 Metropolitan Area AQI: 77 Ozone San Gabriel Mountains AQI: 87 Ozone Victor Valley AQI: 61 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Big Bear Lake AQI: 101 Ozone Riverside Valley AQI: 112 Ozone San Bernardino Mountains AQI: 115 Ozone San Bernardino Valley AQI: 143 Ozone San Fernando/Santa Clarita Valleys AQI: 101 Ozone San Gabriel Valley AQI: 143 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Expect 2-8 degrees of cooling on Sunday as onshore winds provide some relief, but temperatures will still be around 20 degrees above normal. Coastal areas will be partly cloudy and winds in the foothills and low desert could gust up to 30 mph. Inversion Base: 486 FT | Breaking Temperature: 72 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2175 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 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 SUNDAY, MARCH 22, 2026 IN THE SOUTH COAST AIR BASIN.