SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT DAILY AIR QUALITY FORECAST VALID: THU., JUL. 03, 2025 -------------------------------------------------------------------------------- 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 57 50 0.5 30 12 23 56 2 NW Coastal LA 45 42 0.2 30 10 14 53 3 SW Coastal LA 40 36 0.2 29 9 9 50 4 S Coastal LA 41 39 0.2 28 9 16 50 5 Southeast LA Co 53 47 0.4 30 10 20 53 6 W San Fernando Vly 70 63 0.2 30 10 11 77 7 E San Fernando Vly 65 60 0.4 32 13 18 67 8 W San Gabriel Vly 68 57 0.3 35 13 13 58 9 E San Gabriel Vly 94 76 0.3 40 13 16 118 10 Pomona Walnut Vly 81 66 0.3 40 12 18 87 11 S San Gabriel Vly 63 53 0.3 35 11 19 55 12 S Central LA Co 47 44 0.2 29 10 12 53 13 Santa Clarita Vly 97 84 0.2 32 15 19 147 15 San Gabriel Mts 83 73 0.3 40 13 22 108 Los Angeles County: Mojave Desert Air Basin 14 Antelope Vly 86 75 0.3 36 7 25 115 Orange County: South Coast Air Basin 16 N Orange Co 60 51 0.1 36 10 9 53 17 Central Orange Co 48 42 0.3 23 9 7 50 18 N Coastal Orange Co 42 38 0.2 26 9 14 50 19 Saddleback Vly 50 44 0.1 36 9 10 50 20 Central Coastal 46 40 0.2 28 8 10 44 21 Capistrano Vly 48 43 0.3 32 7 9 40 Riverside County: South Coast Air Basin 22 Norco/Corona 79 66 0.3 49 11 12 87 23 Metro Riverside Co 88 73 0.4 55 12 13 108 24 Perris Vly 78 71 0.3 44 10 21 101 25 Lake Elsinore 69 62 0.3 29 9 9 74 26 Temecula Vly 52 49 0.3 39 8 10 45 27 Anza Vly 64 60 0.2 44 5 11 67 28 Hemet/San Jacinto 67 65 0.3 41 8 22 84 29 Banning 83 77 0.3 39 9 18 122 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 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 79 74 0.2 53 5 13 112 Riverside County: Mojave Desert Air Basin 31 E Riverside Co 57 50 0.2 40 5 11 46 San Bernardino County: South Coast Air Basin 32 NW San Bernardino Vly 82 69 0.3 30 13 19 97 33 SW San Bernardino Vly 79 65 0.3 48 12 22 84 34 C San Bernardino Vly 96 82 0.3 45 12 27 140 35 E San Bernardino Vly 101 86 0.4 45 11 25 151 36 W San Bernardino Mtns 84 76 0.3 34 12 31 118 37 C San Bernardino Mtns 97 83 0.3 43 8 36 143 38 Big Bear Lake 77 73 0.3 41 5 28 108 San Bernardino County: Mojave Desert Air Basin 39 Phelan 81 71 0.3 35 7 40 101 40 Hesperia 77 68 0.3 32 8 42 93 41 Trona 64 61 0.2 34 7 14 71 42 Victorville 82 74 0.3 35 9 45 112 43 Yucca Vly 83 74 0.2 44 5 21 112 44 Barstow 76 70 0.2 39 8 41 100 45 Twentynine Palms 75 67 0.2 43 5 18 90 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- AIR QUALITY FORECAST -------------------------------------------------------------------------------- ON THU., JUL. 03, 2025, THE SOUTH COAST AIR QUALITY MANAGEMENT DISTRICT PREDICTS THE AIR QUALITY WILL BE ... GOOD in the following area(s): Inland Orange County AQI: 50 PM2.5 MODERATE in the following area(s): Coastal Area AQI: 53 PM2.5 Metropolitan Area AQI: 56 PM2.5 Northern Mojave Desert AQI: 100 Ozone Temecula/Anza Area AQI: 67 Ozone UNHEALTHY FOR SENSITIVE GROUPS in the following area(s): Antelope Valley AQI: 115 Ozone Banning Pass Area AQI: 122 Ozone Big Bear Lake AQI: 108 Ozone Central Mojave Desert AQI: 112 Ozone Coachella Valley/Low Desert AQI: 112 Ozone Hemet/Elsinore Area AQI: 101 Ozone Riverside Valley AQI: 108 Ozone San Bernardino Mountains AQI: 143 Ozone San Fernando/Santa Clarita Valleys AQI: 147 Ozone San Gabriel Mountains AQI: 108 Ozone San Gabriel Valley AQI: 118 Ozone Victor Valley AQI: 112 Ozone UNHEALTHY in the following area(s): San Bernardino Valley AQI: 151 Ozone ------------------------------------------------------------------------ ------------------------------------------------------------------------ WEATHER FORECAST ------------------------------------------------------------------------ Cooler temperatures on Thursday. Night and morning low clouds at the coast and valleys are predicted. Onshore pressure gradients. Inversion Base: 1494 FT | Breaking Temperature: 79 DEG F Inversion Breaking: NO | Maximum Mixing HEIGHT: 2313 FT ------------------------------------------------------------------------ ------------------------------------------------------------------------ AIR QUALITY FORECAST RULE IMPLICATIONS ------------------------------------------------------------------------ Area 40 - South Coast Air Basin: NO-BURN Area 53 - Mojave Desert Air Basin: BURN Area 55 - Salton Sea Air Basin: MARGINAL-BURN Burning is prohibited in source/receptor area 30 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 THURSDAY, JULY 03, 2025 IN THE SOUTH COAST AIR BASIN.