SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., DEC. 10, 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 44 36 0.8 33 9 42 40 2 NW Coastal LA 43 36 0.6 31 10 30 42 3 SW Coastal LA 39 32 0.8 37 12 39 50 4 S Coastal LA 39 32 1.5 60 13 48 53 5 Southeast LA Co 42 33 1.9 54 12 45 50 6 W San Fernando Vly 40 37 1.2 29 9 33 38 7 E San Fernando Vly 41 37 1.0 32 9 39 38 8 W San Gabriel Vly 48 41 0.8 33 7 39 38 9 E San Gabriel Vly 46 41 0.4 16 3 18 38 10 Pomona Walnut Vly 42 34 0.8 50 8 42 46 11 S San Gabriel Vly 43 34 0.9 50 10 39 46 12 S Central LA Co 39 31 1.9 43 15 42 57 13 Santa Clarita Vly 42 41 0.3 31 7 15 38 15 San Gabriel Mts 43 40 0.6 32 6 34 37 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 38 33 0.5 32 11 31 46 Orange County: South Coast Air Basin 16 N Orange Co 44 36 0.8 60 9 36 53 17 Central Orange Co 38 33 1.0 60 8 45 53 18 N Coastal Orange Co 36 30 1.3 50 11 44 46 19 Saddleback Vly 42 39 0.5 60 10 38 53 20 Central Coastal 38 33 0.7 41 11 31 46 21 Capistrano Vly 41 36 0.5 28 12 23 50 Riverside County: South Coast Air Basin 22 Norco/Corona 43 39 1.0 57 9 38 52 23 Metro Riverside Co 44 39 1.1 60 9 37 53 24 Perris Vly 42 38 0.9 31 7 31 35 25 Lake Elsinore 46 42 0.4 18 3 17 39 26 Temecula Vly 45 43 0.4 24 7 17 40 27 Anza Vly 46 43 0.3 26 3 19 40 28 Hemet/San Jacinto 46 43 0.8 27 5 27 40 29 Banning 47 44 0.7 25 6 23 41 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 43 41 0.3 35 7 21 38 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 41 38 0.3 26 3 16 35 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 53 46 0.5 40 8 31 43 33 SW San Bernardino Vly 44 37 1.0 57 9 41 52 34 C San Bernardino Vly 42 37 1.0 31 6 37 35 35 E San Bernardino Vly 45 40 0.9 31 6 33 37 36 W San Bernardino Mtns 47 43 0.8 35 5 33 40 37 C San Bernardino Mtns 43 40 1.0 32 6 33 37 38 Big Bear Lake 45 42 0.9 28 10 31 42 San Bernardino County: Mojave Desert Air Basin 39 Phelan 39 37 0.7 29 6 34 34 40 Hesperia 37 34 0.8 28 10 35 42 41 Trona 75 25 0.3 21 4 14 23 42 Victorville 37 33 0.7 29 11 36 46 43 Yucca Vly 43 41 0.5 27 4 26 38 44 Barstow 39 32 0.5 23 6 44 42 45 Twentynine Palms 41 38 0.4 27 3 24 35 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., DEC. 10, 2023, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 46 PM2.5 Banning Pass Area AQI: 41 Ozone Big Bear Lake AQI: 42 PM2.5 Central Mojave Desert AQI: 38 Ozone Coachella Valley/Low Desert AQI: 38 Ozone Hemet/Elsinore Area AQI: 40 Ozone Northern Mojave Desert AQI: 42 NO2 San Bernardino Mountains AQI: 40 Ozone San Fernando/Santa Clarita Valleys AQI: 38 Ozone San Gabriel Mountains AQI: 37 Ozone San Gabriel Valley AQI: 46 PM10 Temecula/Anza Area AQI: 40 Ozone Victor Valley AQI: 46 PM2.5 MODERATE in the following area(s): Coastal Area AQI: 53 PM10 Inland Orange County AQI: 53 PM10 Metropolitan Area AQI: 57 PM2.5 Riverside Valley AQI: 53 PM10 San Bernardino Valley AQI: 52 PM10 ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Santa Ana winds on Sunday. Gusty winds through about 3 pm Sunday. Inversion Base: 486 FT | Breaking Temperature: 59 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2354 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 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 SUNDAY, DECEMBER 10, 2023 IN THE SOUTH COAST AIR BASIN.