Air quality was in the good to unhealthful for sensitive groups range in the South Coast Air Basin Friday.
The Air Quality Management District (AQMD) predicts air quality in the good to moderate range for Saturday.
Following are today'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
Coastal Area 36 6 25
Metropolitan Los Angeles 30 8 31
San Fernando-Santa Clarita Valleys 51 8 34
San Gabriel/Pomona Valleys 39 9 37
Inland Orange County 36 5 18
Riverside/San Bernardino 87 10 36
Hemet-Elsinore 111 5 21
Big Bear Lake NR NR NR
High Desert NR NR NR
Banning 90 NR 20
Low Desert 71 3 10
Earlier today, the AQMD released the AQI forecast for Saturday, which indicates the highest AQI level, whether for ozone, carbon monoxide or nitrogen
dioxide, for each area in the basin.
Area AQI Forecast for Saturday
GOOD IN THE:
Coastal Area AQI: 48 Ozone
San Gabriel AQI: 49 PM10/PM2.5
Inland Orange County AQI: 49 Ozone
Big Bear Lake AQI: 48 Ozone
Northern Mojave Desert AQI: 48 Ozone
MODERATE IN THE:
Metropolitan Area AQI: 60 PM10/PM2.5
San Fernando/Santa Clarita Valleys AQI: 58 Ozone
Riverside Valley AQI: 78 PM10/PM2.5
San Bernardino Valley AQI: 72 PM10/PM2.5
Hemet/Elsinore Area AQI: 74 Ozone
Temecula/Anza Area AQI: 67 Ozone
San Gabriel Mountains AQI: 57 Ozone
San Bernardino Mountains AQI: 57 Ozone
Banning Pass Area AQI: 77 Ozone
Coachella Valley/Low Desert AQI: 57 Ozone
Antelope Valley AQI: 57 Ozone
Victor Valley AQI: 57 Ozone
Central Mojave Desert AQI: 65 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.
The AQMD headquarters is located in Diamond Bar, California.