SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., APR. 28, 2024 -------------------------------------------------------------------------------- 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 53 0.3 25 12 20 50 2 NW Coastal LA 50 48 0.4 23 11 12 46 3 SW Coastal LA 45 43 0.3 24 10 15 42 4 S Coastal LA 55 52 0.3 25 9 13 48 5 Southeast LA Co 58 54 0.5 26 11 20 50 6 W San Fernando Vly 58 55 0.4 22 8 13 51 7 E San Fernando Vly 60 57 0.4 25 8 17 58 8 W San Gabriel Vly 62 56 0.4 27 9 14 54 9 E San Gabriel Vly 74 67 0.4 30 8 12 90 10 Pomona Walnut Vly 68 61 0.5 30 10 19 71 11 S San Gabriel Vly 64 58 0.5 28 11 20 61 12 S Central LA Co 55 52 0.4 25 11 15 48 13 Santa Clarita Vly 59 55 0.2 22 8 10 51 15 San Gabriel Mts 59 55 0.4 30 7 14 51 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 49 47 0.3 20 10 10 44 Orange County: South Coast Air Basin 16 N Orange Co 58 55 0.2 27 11 12 51 17 Central Orange Co 49 47 0.4 26 11 12 46 18 N Coastal Orange Co 49 47 0.3 25 7 12 44 19 Saddleback Vly 59 54 0.2 27 11 11 50 20 Central Coastal 52 49 0.3 24 8 10 45 21 Capistrano Vly 50 48 0.3 24 9 8 44 Riverside County: South Coast Air Basin 22 Norco/Corona 70 64 0.4 30 11 12 80 23 Metro Riverside Co 77 67 0.4 32 13 18 90 24 Perris Vly 67 62 0.4 30 10 18 74 25 Lake Elsinore 58 56 0.3 23 6 7 54 26 Temecula Vly 52 50 0.3 29 8 7 46 27 Anza Vly 57 53 0.2 33 7 7 49 28 Hemet/San Jacinto 63 58 0.3 30 8 17 61 29 Banning 71 64 0.3 29 11 15 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 70 66 0.2 39 10 6 87 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 59 56 0.2 27 6 8 54 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 78 69 0.4 17 11 15 97 33 SW San Bernardino Vly 71 63 0.5 29 11 16 77 34 C San Bernardino Vly 79 69 0.4 32 12 20 97 35 E San Bernardino Vly 79 71 0.4 31 14 19 101 36 W San Bernardino Mtns 79 69 0.4 24 10 19 97 37 C San Bernardino Mtns 76 63 0.4 31 7 23 77 38 Big Bear Lake 71 64 0.4 30 8 21 80 San Bernardino County: Mojave Desert Air Basin 39 Phelan 56 54 0.3 25 6 22 50 40 Hesperia 62 56 0.4 25 9 25 54 41 Trona 62 54 0.2 23 6 8 50 42 Victorville 56 53 0.3 26 8 24 49 43 Yucca Vly 62 61 0.2 30 10 17 71 44 Barstow 57 55 0.3 29 6 41 51 45 Twentynine Palms 60 59 0.2 29 8 15 64 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., APR. 28, 2024, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Antelope Valley AQI: 44 Ozone Coastal Area AQI: 48 Ozone Inland Orange County AQI: 50 Ozone Temecula/Anza Area AQI: 49 Ozone MODERATE in the following area(s): Banning Pass Area AQI: 80 Ozone Big Bear Lake AQI: 80 Ozone Central Mojave Desert AQI: 71 Ozone Coachella Valley/Low Desert AQI: 87 Ozone Hemet/Elsinore Area AQI: 74 Ozone Metropolitan Area AQI: 51 Ozone Northern Mojave Desert AQI: 51 Ozone Riverside Valley AQI: 90 Ozone San Bernardino Mountains AQI: 97 Ozone San Fernando/Santa Clarita Valleys AQI: 58 Ozone San Gabriel Mountains AQI: 51 Ozone San Gabriel Valley AQI: 90 Ozone Victor Valley AQI: 54 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): San Bernardino Valley AQI: 101 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Weak onshore pressure gradients. Clear skies and warmer temperatures Sunday. Inversion Base: 1604 FT | Breaking Temperature: 65 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2600 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: MARGINAL-BURN Burning is prohibited in the following source/receptor areas: 35 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, APRIL 28, 2024 IN THE SOUTH COAST AIR BASIN.