SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: WED., MAR. 22, 2023 -------------------------------------------------------------------------------- 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 41 39 0.4 12 5 20 36 2 NW Coastal LA 38 35 0.4 10 5 22 32 3 SW Coastal LA 35 33 0.3 11 5 16 31 4 S Coastal LA 42 40 0.4 10 5 32 37 5 Southeast LA Co 42 40 0.4 11 4 29 37 6 W San Fernando Vly 42 40 0.5 9 5 20 37 7 E San Fernando Vly 42 40 0.5 11 4 20 37 8 W San Gabriel Vly 45 42 0.2 11 4 19 39 9 E San Gabriel Vly 47 43 0.3 7 1 13 40 10 Pomona Walnut Vly 44 42 0.5 13 2 23 39 11 S San Gabriel Vly 44 41 0.4 11 3 28 38 12 S Central LA Co 41 39 0.4 11 5 26 36 13 Santa Clarita Vly 45 43 0.2 8 4 13 40 15 San Gabriel Mts 45 42 0.3 12 3 17 39 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 45 40 0.3 5 3 6 37 Orange County: South Coast Air Basin 16 N Orange Co 43 41 0.2 11 4 22 38 17 Central Orange Co 40 38 0.3 9 4 19 35 18 N Coastal Orange Co 40 39 0.3 9 5 27 36 19 Saddleback Vly 42 40 0.2 11 4 17 37 20 Central Coastal 42 40 0.3 7 4 16 37 21 Capistrano Vly 42 41 0.2 6 4 10 38 Riverside County: South Coast Air Basin 22 Norco/Corona 40 39 0.4 14 5 18 36 23 Metro Riverside Co 40 39 0.6 14 5 20 36 24 Perris Vly 39 38 0.4 14 3 15 35 25 Lake Elsinore 43 41 0.2 4 1 6 38 26 Temecula Vly 44 40 0.2 9 6 8 37 27 Anza Vly 43 42 0.2 11 6 9 39 28 Hemet/San Jacinto 42 40 0.3 13 4 11 37 29 Banning 41 40 0.3 12 5 8 37 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 50 46 0.2 46 8 12 43 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 44 42 0.2 18 5 9 39 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 42 39 0.3 16 1 14 36 33 SW San Bernardino Vly 41 39 0.4 15 4 21 36 34 C San Bernardino Vly 42 40 0.4 16 3 24 37 35 E San Bernardino Vly 44 41 0.5 15 3 17 38 36 W San Bernardino Mtns 44 41 0.3 12 2 16 38 37 C San Bernardino Mtns 46 44 0.4 14 5 14 41 38 Big Bear Lake 46 45 0.3 16 5 15 42 San Bernardino County: Mojave Desert Air Basin 39 Phelan 42 40 0.3 6 3 11 37 40 Hesperia 46 43 0.3 10 4 12 40 41 Trona 45 43 0.2 10 2 15 40 42 Victorville 47 44 0.3 5 5 10 41 43 Yucca Vly 50 49 0.3 26 6 14 45 44 Barstow 47 45 0.3 6 4 21 42 45 Twentynine Palms 44 43 0.2 24 5 13 40 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON WED., MAR. 22, 2023, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 37 Ozone Banning Pass Area AQI: 37 Ozone Big Bear Lake AQI: 42 Ozone Central Mojave Desert AQI: 45 Ozone Coachella Valley/Low Desert AQI: 43 Ozone Coastal Area AQI: 37 Ozone Hemet/Elsinore Area AQI: 38 Ozone Inland Orange County AQI: 38 Ozone Metropolitan Area AQI: 38 Ozone Northern Mojave Desert AQI: 42 Ozone Riverside Valley AQI: 36 Ozone San Bernardino Mountains AQI: 41 Ozone San Bernardino Valley AQI: 38 Ozone San Fernando/Santa Clarita Valleys AQI: 40 Ozone San Gabriel Mountains AQI: 39 Ozone San Gabriel Valley AQI: 40 Ozone Temecula/Anza Area AQI: 39 Ozone Victor Valley AQI: 41 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Rain will continue through Wednesday. Onshore pressure gradients. Inversion Base: 10000 FT | Breaking Temperature: 69 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 6548 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: 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 WEDNESDAY, MARCH 22, 2023 IN THE SOUTH COAST AIR BASIN.