SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: SUN., MAY. 31, 2020 -------------------------------------------------------------------------------- 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 49 42 0.3 23 10 16 42 2 NW Coastal LA 54 47 0.3 19 11 13 46 3 SW Coastal LA 45 39 0.2 11 7 9 36 4 S Coastal LA 43 37 0.2 16 8 12 34 5 Southeast LA Co 55 44 0.4 13 12 24 50 6 W San Fernando Vly 63 56 0.4 14 12 8 54 7 E San Fernando Vly 65 55 0.4 27 12 14 51 8 W San Gabriel Vly 55 51 0.4 16 10 14 47 9 E San Gabriel Vly 79 67 0.4 29 14 12 90 10 Pomona Walnut Vly 56 47 0.5 18 12 16 50 11 S San Gabriel Vly 64 51 0.4 18 13 24 53 12 S Central LA Co 49 41 0.4 12 12 16 50 13 Santa Clarita Vly 76 63 0.3 41 9 12 77 15 San Gabriel Mts 72 62 0.4 12 10 13 74 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 58 55 0.2 16 6 11 51 Orange County: South Coast Air Basin 16 N Orange Co 50 42 0.3 19 9 13 39 17 Central Orange Co 50 41 0.2 20 8 7 38 18 N Coastal Orange Co 49 43 0.2 19 6 10 40 19 Saddleback Vly 54 47 0.3 11 7 9 44 20 Central Coastal 48 44 0.3 16 6 8 41 21 Capistrano Vly 51 47 0.3 11 6 7 44 Riverside County: South Coast Air Basin 22 Norco/Corona 63 55 0.3 35 10 10 51 23 Metro Riverside Co 69 58 0.3 35 12 13 61 24 Perris Vly 68 61 0.3 30 8 17 71 25 Lake Elsinore 57 54 0.3 16 6 6 50 26 Temecula Vly 53 48 0.3 18 9 7 44 27 Anza Vly 56 52 0.3 17 11 8 48 28 Hemet/San Jacinto 66 61 0.3 24 10 17 71 29 Banning 72 71 0.3 31 10 14 101 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 77 70 0.3 50 12 10 100 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 49 46 0.2 32 6 9 43 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 78 65 0.4 50 11 14 84 33 SW San Bernardino Vly 65 56 0.4 28 11 15 54 34 C San Bernardino Vly 78 68 0.2 24 10 22 93 35 E San Bernardino Vly 80 72 0.3 30 9 20 105 36 W San Bernardino Mtns 82 69 0.4 15 12 16 97 37 C San Bernardino Mtns 81 71 0.3 14 8 20 101 38 Big Bear Lake 68 63 0.3 14 8 21 77 San Bernardino County: Mojave Desert Air Basin 39 Phelan 74 67 0.4 13 9 15 90 40 Hesperia 67 64 0.4 13 8 20 80 41 Trona 62 58 0.5 13 6 20 61 42 Victorville 66 62 0.4 13 7 15 74 43 Yucca Vly 74 67 0.3 13 10 17 90 44 Barstow 65 59 0.4 13 6 37 64 45 Twentynine Palms 65 59 0.3 13 7 16 64 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON SUN., MAY. 31, 2020, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Coastal Area AQI: 46 PM2.5 Inland Orange County AQI: 44 Ozone Metropolitan Area AQI: 50 PM2.5 Temecula/Anza Area AQI: 48 Ozone MODERATE in the following area(s): Antelope Valley AQI: 74 Ozone Big Bear Lake AQI: 77 Ozone Central Mojave Desert AQI: 90 Ozone Coachella Valley/Low Desert AQI: 100 Ozone Hemet/Elsinore Area AQI: 71 Ozone Northern Mojave Desert AQI: 64 Ozone Riverside Valley AQI: 61 Ozone San Fernando/Santa Clarita Valleys AQI: 77 Ozone San Gabriel Mountains AQI: 51 Ozone San Gabriel Valley AQI: 90 Ozone Victor Valley AQI: 90 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Banning Pass Area AQI: 101 Ozone San Bernardino Mountains AQI: 101 Ozone San Bernardino Valley AQI: 105 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Cool temperatures are predicted for Sunday. Inversion Base: 2249 FT | Breaking Temperature: 75 DEG F Inversion Breaking: YES | Maximum Mixing HEIGHT: 2859 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: MARGINAL-BURN Burning is prohibited in the following source/receptor areas: 29, 35, 37 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, MAY 31, 2020 IN THE SOUTH COAST AIR BASIN.