SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., SEP. 22, 2019 -------------------------------------------------------------------------------- SRA AREA 1-HR 8-HR 8-HR 24-HR 24-HR 24-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 62 55 0.9 37 18 10 63 2 NW Coastal LA 67 60 0.6 30 25 10 78 3 SW Coastal LA 52 44 1.4 25 25 12 78 4 S Coastal LA 53 48 0.5 22 22 12 72 5 Southeast LA Co 66 58 0.7 24 24 12 76 6 W San Fernando Vly 68 64 0.5 23 9 10 80 7 E San Fernando Vly 63 58 0.8 26 13 16 61 8 W San Gabriel Vly 66 59 1.0 26 12 12 64 9-1 E San Gabriel Vly-1 73 64 0.6 31 10 12 80 9-2 E San Gabriel Vly-2 73 64 0.6 31 10 12 80 10 Pomona Walnut Vly 76 64 1.2 32 13 12 80 11 S San Gabriel Vly 73 63 0.7 16 16 16 77 12 S Central LA Co 58 52 0.6 25 25 16 78 13 Santa Clarita Vly 67 61 0.5 35 5 10 71 15 San Gabriel Mts 67 61 0.5 18 8 10 71 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 65 60 0.5 25 6 10 67 Orange County: South Coast Air Basin 16 N Orange Co 72 61 0.5 26 15 10 71 17-1 Central Orange Co-1 66 58 0.5 27 13 10 61 17-2 Central Orange Co-2 66 58 0.5 27 13 10 61 18 N Coastal Orange Co 61 58 0.5 26 15 10 61 19 Saddleback Vly 66 59 0.5 18 12 10 64 20 Central Coastal 60 57 0.5 23 14 10 58 21 Capistrano Vly 57 53 0.5 17 11 10 49 Riverside County: South Coast Air Basin 22 Norco/Corona 81 66 0.5 33 12 10 87 23 Metro Riverside Co 78 67 0.5 33 10 10 90 24 Perris Vly 74 65 0.5 33 7 10 84 25 Lake Elsinore 66 59 0.5 19 2 10 64 26 Temecula Vly 68 63 0.5 28 4 10 77 27 Anza Vly 66 61 0.5 14 5 10 71 28 Hemet/San Jacinto 69 64 0.5 23 5 10 80 29 Banning 74 68 0.5 33 5 10 93 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- SRA AREA 1-HR 8-HR 8-HR 24-HR 24-HR 24-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 30-1 N Coachella Vly 66 62 0.5 39 4 10 74 30-2 S Coachella Vly 66 62 0.5 39 4 10 74 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 80 66 0.9 58 6 12 87 33 SW San Bernardino Vly 82 67 1.2 48 12 12 90 34-1 C San Bernardino Vly-1 80 70 1.0 38 9 10 100 34-2 C San Bernardino Vly-2 80 70 1.0 38 9 10 100 35 E San Bernardino Vly 80 74 0.5 42 7 10 112 36 W San Bernardino Mtns 77 66 0.5 23 7 10 87 37 C San Bernardino Mtns 78 70 0.5 19 10 10 100 38 Big Bear Lake 68 63 0.5 15 6 10 77 San Bernardino County: Mojave Desert Air Basin 39 Phelan 71 64 0.5 16 6 10 80 40 Hesperia 76 67 0.5 14 9 10 90 41 Trona 50 44 0.5 17 3 10 41 42 Victorville 72 65 0.5 14 7 10 84 43 Yucca Vly 63 60 0.5 15 4 10 67 44 Barstow 63 57 0.5 14 4 10 58 45 Twentynine Palms 56 54 0.5 13 3 10 50 -------------------------------------------------------------------------------- ------------------------------------------------------------------------ AIR QUALITY FORECAST ------------------------------------------------------------------------ ON SUN., SEP. 22, 2019 THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... MODERATE in the following area(s): Coastal Area AQI: 78 PM2.5 Metropolitan Area AQI: 78 PM2.5 San Fernando/Santa Clarita Valleys AQI: 80 Ozone San Gabriel Valley AQI: 80 Ozone Inland Orange County AQI: 64 Ozone Riverside Valley AQI: 90 Ozone Hemet/Elsinore Area AQI: 84 Ozone Temecula/Anza Area AQI: 77 Ozone San Gabriel Mountains AQI: 67 Ozone San Bernardino Mountains AQI: 100 Ozone Big Bear Lake AQI: 77 Ozone Banning Pass Area AQI: 93 Ozone Coachella Valley/Low Desert AQI: 74 Ozone Antelope Valley AQI: 71 Ozone Victor Valley AQI: 90 Ozone Northern Mojave Desert AQI: 58 Ozone Central Mojave Desert AQI: 67 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): San Bernardino Valley AQI: 112 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Light offshore winds are predicted for Sunday morning, turning to onshore in the afternoon. Warm temperatures are predicted inland. ------------------------------------------------------------------------ Inversion Base: 486 FT | Breaking Temperature: 80 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 1799 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AGRICULTURAL AND WILDLAND FIRES BURN FORECAST ------------------------------------------------------------------------ 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 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, SEPTEMBER 22, 2019 IN THE SOUTH COAST AIR BASIN.