The air quality forecast for Tuesday, December 11, is for little change in conditions. Air quality levels will be GOOD to MODERATE throughout the day.
Air quality reports use the Air Quality Index, which represents the higher of two pollutants - PM2.5 or ozone. For ground-level ozone (O3), these values are based upon an 8-hour running average. For ground-level particulate matter with a diameter less than 2.5 microns (PM2.5), these values are based upon a 24-hour daily average.
Air Quality Index
(AQI) Values
Levels of Health Concern
Colors
When the AQI
is in this range:
...air quality conditions are:
...as symbolized
by this color:
0 to 50
Good
Green
51 to 100
Moderate
Yellow
101 to 150
Unhealthy for
Sensitive Groups (U.S.G)
Orange
151 to 200
Unhealthy
Red
201 to 300
Very Unhealthy
Purple
301 to 500
Hazardous
Maroon
City
Forecast Maximum AQI
Pollutant
Measured Maximum AQI
Pollutant
TUESDAY, DECEMBER 11
MONDAY, DECEMBER 10
Alpine
37
OZONE
29
OZONE
Chula Vista
53
PM2.5
58
PM2.5
Del Mar
53
PM2.5
58
PM2.5
Downtown
53
PM2.5
58
PM2.5
El Cajon
63
PM2.5
71
PM2.5
Escondido
63
PM2.5
72
PM2.5
Otay Mesa
61
PM2.5
65
PM2.5
Kearny Mesa
53
PM2.5
58
PM2.5
Oceanside
53
PM2.5
58
PM2.5
POLLUTANT SPECIFIC FORECASTS
City
Forecast Maximum AQI OZONE
Forecast Maximum AQI PM2.5
TUESDAY, DECEMBER 11
TUESDAY, DECEMBER 11
Alpine
37
GOOD
21
GOOD
Chula Vista
32
GOOD
53
MODERATE
Del Mar
32
GOOD
53
MODERATE
Downtown
28
GOOD
53
MODERATE
El Cajon
32
GOOD
63
MODERATE
Escondido
32
GOOD
63
MODERATE
Otay Mesa
32
GOOD
61
MODERATE
Kearny Mesa
32
GOOD
53
MODERATE
Oceanside
32
GOOD
53
MODERATE
In cases where this page is not updated properly, or to hear
the official air pollution forecast, please call our air pollution recording
line at (858) 586-2800. This recording is updated daily Monday through Friday at 4:30 PM.
If you need air quality information, please call (858) 586-2600. If you have an air pollution complaint, or see an air pollution problem, please call (858) 586-2650. Thank you.
