Air quality ranged from good to unhealthful for sensitive groups in the South Coast Air Basin Monday.
The AQMD predicts air quality in the moderate to unhealthful for sensitive groups range for Tuesday.
Following are Monday's peak Air Quality Index levels for ozone, carbon monoxide and nitrogen dioxide in each area of the basin. NR indicates no
reading was available.
Area Ozone Carbon Nitrogen
Monoxide Dioxide
Coastal Area 114 15 42
Metropolitan Los Angeles 47 14 46
San Fernando-Santa Clarita Valleys 51 11 40
San Gabriel/Pomona Valleys 48 11 47
Inland Orange County 45 13 39
Riverside/San Bernardino 77 11 33
Hemet-Elsinore 67 5 18
Big Bear Lake NR NR NR
High Desert NR NR NR
Banning 50 NR 20
Low Desert 64 2 11
Earlier Monday, the AQMD released the PSI forecast for tomorrow, which indicates the highest PSI level, whether for ozone, carbon monoxide or nitrogen dioxide, for each area in the basin.
Area PSI Forecast for Tomorrow
MODERATE IN THE:
Coastal Area AQI: 57 Ozone
Metropolitan Area AQI: 87 Ozone
Inland Orange County AQI: 87 Ozone
Temecula/Anza Area AQI: 67 Ozone
San Gabriel Mountains AQI: 74 Ozone
Big Bear Lake AQI: 57 Ozone
Banning Pass Area AQI: 97 Ozone
Coachella Valley/Low Desert AQI: 77 Ozone
Antelope Valley AQI: 65 Ozone
Victor Valley AQI: 77 Ozone
Northern Mojave Desert AQI: 58 Ozone
Central Mojave Desert AQI: 62 Ozone
UNHEALTHFUL FOR SENSITIVE GROUPS:
San Fernando/Santa Clarita Valleys AQI: 114 Ozone
San Gabriel AQI: 116 Ozone
Riverside Valley AQI: 145 Ozone
San Bernardino Valley AQI: 137 Ozone
Hemet/Elsinore Area AQI: 114 Ozone
San Bernardino Mountains AQI: 142 Ozone
The AQI measures the amount of pollutants in the air, whether ozone, carbon monoxide, nitrogen dioxide or PM10 (particulate matter).
Conditions are considered ``good'' when AQI levels are between zero and 50. No health impacts are expected when air quality is in this range.
When AQI levels are 51 to 100, air quality is deemed ``moderate,'' which means that unusually sensitive people should consider limiting prolonged outdoor exertion.
Air quality is designated ``unhealthful for sensitive groups'' when AQI levels are from 101 to 150. At this level, active children and adults, and people with respiratory disease, such as asthma, should limit prolonged outdoor exertion.
When AQI levels are between 151 and 200, air quality is deemed ``unhealthful.'' At this level, active children and adults, and people with respiratory disease, such as asthma, should avoid prolonged outdoor exertion. Everyone else, especially children, should limit prolonged outdoor exertion.
``Very unhealthful'' air quality is declared when the AQI registers between 201 and 300. Active children and adults, and people with respiratory disease,should avoid all outdoor exertion when the AQI is at this level. Everyone else, especially children, should limit outdoor exertion.
