SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SAT., SEP. 21, 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 52 51 0.5 40 15 10 57 2 NW Coastal LA 61 57 0.6 32 10 10 58 3 SW Coastal LA 57 44 0.5 19 9 12 41 4 S Coastal LA 54 47 0.5 12 5 12 44 5 Southeast LA Co 59 51 0.6 14 6 12 47 6 W San Fernando Vly 67 60 0.5 21 9 10 67 7 E San Fernando Vly 54 63 0.5 37 11 12 77 8 W San Gabriel Vly 64 63 0.5 33 12 12 77 9-1 E San Gabriel Vly-1 69 64 0.6 37 11 12 80 9-2 E San Gabriel Vly-2 69 64 0.6 37 11 12 80 10 Pomona Walnut Vly 78 64 0.5 29 11 10 80 11 S San Gabriel Vly 64 58 0.6 11 5 16 61 12 S Central LA Co 46 44 0.6 20 9 16 41 13 Santa Clarita Vly 54 49 0.5 39 5 10 45 15 San Gabriel Mts 64 56 0.5 20 9 10 54 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 55 52 0.5 27 5 10 48 Orange County: South Coast Air Basin 16 N Orange Co 47 60 0.5 28 11 10 67 17-1 Central Orange Co-1 69 59 0.5 30 10 10 64 17-2 Central Orange Co-2 69 59 0.5 30 10 10 64 18 N Coastal Orange Co 65 60 0.5 28 9 10 67 19 Saddleback Vly 85 70 0.5 19 9 10 100 20 Central Coastal 74 67 0.5 24 11 10 90 21 Capistrano Vly 76 68 0.5 18 8 10 93 Riverside County: South Coast Air Basin 22 Norco/Corona 73 65 0.5 41 10 10 84 23 Metro Riverside Co 71 63 0.5 49 12 10 77 24 Perris Vly 64 57 0.5 32 11 10 58 25 Lake Elsinore 69 62 0.5 17 6 10 74 26 Temecula Vly 73 65 0.5 26 8 10 84 27 Anza Vly 56 52 0.5 15 8 10 48 28 Hemet/San Jacinto 57 54 0.5 23 6 10 50 29 Banning 58 55 0.5 32 4 10 51 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 69 56 0.5 37 3 10 54 30-2 S Coachella Vly 61 56 0.5 74 3 10 60 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 66 58 0.5 31 6 10 61 33 SW San Bernardino Vly 74 64 0.5 45 9 27 80 34-1 C San Bernardino Vly-1 72 63 0.5 30 9 10 77 34-2 C San Bernardino Vly-2 72 63 0.5 30 9 10 77 35 E San Bernardino Vly 75 66 0.5 31 8 10 87 36 W San Bernardino Mtns 60 54 0.5 18 6 10 50 37 C San Bernardino Mtns 65 58 0.5 15 9 10 61 38 Big Bear Lake 57 53 0.5 14 6 10 49 San Bernardino County: Mojave Desert Air Basin 39 Phelan 74 55 0.5 13 4 10 51 40 Hesperia 59 54 0.5 13 8 10 50 41 Trona 51 47 0.5 18 2 10 44 42 Victorville 59 55 0.5 13 5 10 51 43 Yucca Vly 55 54 0.5 13 2 10 50 44 Barstow 54 45 0.5 13 3 10 42 45 Twentynine Palms 54 51 0.5 13 2 10 47 -------------------------------------------------------------------------------- ------------------------------------------------------------------------ AIR QUALITY FORECAST ------------------------------------------------------------------------ ON SAT., SEP. 21, 2019 THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): San Gabriel Mountains AQI: 48 Ozone Big Bear Lake AQI: 49 Ozone Northern Mojave Desert AQI: 44 Ozone Central Mojave Desert AQI: 50 Ozone MODERATE in the following area(s): Coastal Area AQI: 90 Ozone Metropolitan Area AQI: 67 Ozone San Fernando/Santa Clarita Valleys AQI: 77 Ozone San Gabriel Valley AQI: 80 Ozone Inland Orange County AQI: 100 Ozone Riverside Valley AQI: 84 Ozone San Bernardino Valley AQI: 87 Ozone Hemet/Elsinore Area AQI: 84 Ozone Temecula/Anza Area AQI: 84 Ozone San Bernardino Mountains AQI: 61 Ozone Banning Pass Area AQI: 51 Ozone Coachella Valley/Low Desert AQI: 60 PM10 Antelope Valley AQI: 54 Ozone Victor Valley AQI: 51 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Saturday will be warmer with most areas 4-8 degrees above normal. ------------------------------------------------------------------------ Inversion Base: 1500 FT | Breaking Temperature: 77 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2818 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AGRICULTURAL AND WILDLAND FIRES BURN FORECAST ------------------------------------------------------------------------ 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 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 SATURDAY, SEPTEMBER 21, 2019 IN THE SOUTH COAST AIR BASIN.