SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: MON., MAR. 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 60 54 0.6 38 15 32 62 2 NW Coastal LA 61 54 0.7 35 11 25 55 3 SW Coastal LA 58 51 0.3 36 13 24 58 4 S Coastal LA 63 55 0.6 34 16 24 64 5 Southeast LA Co 62 56 0.6 36 11 33 55 6 W San Fernando Vly 62 56 0.6 33 9 28 54 7 E San Fernando Vly 65 59 0.6 37 11 30 64 8 W San Gabriel Vly 68 59 0.5 37 11 28 64 9 E San Gabriel Vly 75 63 0.6 34 9 31 77 10 Pomona Walnut Vly 70 60 0.7 36 14 43 67 11 S San Gabriel Vly 66 57 0.6 36 12 33 58 12 S Central LA Co 62 55 0.5 36 10 31 53 13 Santa Clarita Vly 78 67 0.4 32 10 22 90 15 San Gabriel Mts 70 62 0.6 35 9 32 74 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 77 68 0.5 27 11 18 93 Orange County: South Coast Air Basin 16 N Orange Co 65 58 0.4 40 12 23 61 17 Central Orange Co 59 54 0.5 28 11 14 55 18 N Coastal Orange Co 61 57 0.5 30 10 22 58 19 Saddleback Vly 63 60 0.3 40 6 24 67 20 Central Coastal 62 59 0.4 28 7 21 64 21 Capistrano Vly 61 59 0.4 33 7 23 64 Riverside County: South Coast Air Basin 22 Norco/Corona 69 65 0.6 53 12 31 84 23 Metro Riverside Co 74 71 0.8 60 15 37 101 24 Perris Vly 61 59 0.7 43 9 35 64 25 Lake Elsinore 59 57 0.4 29 8 23 58 26 Temecula Vly 57 53 0.3 41 5 21 49 27 Anza Vly 59 56 0.3 46 5 18 54 28 Hemet/San Jacinto 60 58 0.6 38 5 29 61 29 Banning 62 57 0.6 35 5 19 58 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 65 61 0.2 56 8 15 71 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 46 46 0.2 34 5 15 43 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 76 68 0.6 23 13 35 93 33 SW San Bernardino Vly 71 64 0.7 52 16 40 80 34 C San Bernardino Vly 73 69 0.8 45 11 39 97 35 E San Bernardino Vly 73 68 0.8 44 7 36 93 36 W San Bernardino Mtns 73 66 0.7 29 9 34 87 37 C San Bernardino Mtns 66 65 0.7 42 5 34 84 38 Big Bear Lake 68 61 0.7 39 5 30 71 San Bernardino County: Mojave Desert Air Basin 39 Phelan 68 61 0.6 28 5 25 71 40 Hesperia 65 62 0.6 27 7 30 74 41 Trona 56 51 0.3 38 8 25 47 42 Victorville 67 63 0.6 28 9 22 77 43 Yucca Vly 64 62 0.3 29 5 21 74 44 Barstow 70 64 0.4 30 7 36 80 45 Twentynine Palms 60 57 0.3 30 5 20 58 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON MON., MAR. 30, 2026, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Antelope Valley AQI: 93 Ozone Banning Pass Area AQI: 58 Ozone Big Bear Lake AQI: 71 Ozone Central Mojave Desert AQI: 74 Ozone Coachella Valley/Low Desert AQI: 71 Ozone Coastal Area AQI: 64 Ozone Hemet/Elsinore Area AQI: 64 Ozone Inland Orange County AQI: 67 Ozone Metropolitan Area AQI: 62 PM2.5 Northern Mojave Desert AQI: 80 Ozone San Bernardino Mountains AQI: 87 Ozone San Bernardino Valley AQI: 97 Ozone San Fernando/Santa Clarita Valleys AQI: 90 Ozone San Gabriel Mountains AQI: 74 Ozone San Gabriel Valley AQI: 77 Ozone Temecula/Anza Area AQI: 54 Ozone Victor Valley AQI: 77 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Riverside Valley AQI: 101 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Mostly cloudy skies with cooler temperatures are expected. Inversion Base: 486 FT | Breaking Temperature: 73 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 1054 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: MARGINAL-BURN Burning is prohibited in the following source/receptor areas: 23 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 MONDAY, MARCH 30, 2026 IN THE SOUTH COAST AIR BASIN.