The air quality forecast for Wednesday, November 13, 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
WEDNESDAY, NOVEMBER 13
TUESDAY, NOVEMBER 12
Alpine
77
OZONE
64
OZONE
Chula Vista
57
PM2.5
56
PM2.5
Del Mar
42
OZONE
41
OZONE
Downtown
63
PM2.5
62
PM2.5
El Cajon
55
PM2.5
53
PM2.5
Escondido
57
PM2.5
54
PM2.5
Otay Mesa
78
PM2.5
85
PM2.5
Kearny Mesa
55
PM2.5
54
PM2.5
Oceanside
42
OZONE
41
OZONE
POLLUTANT SPECIFIC FORECASTS
City
Forecast Maximum AQI OZONE
Forecast Maximum AQI PM2.5
WEDNESDAY, NOVEMBER 13
WEDNESDAY, NOVEMBER 13
Alpine
77
MODERATE
25
GOOD
Chula Vista
44
GOOD
57
MODERATE
Del Mar
42
GOOD
13
GOOD
Downtown
43
GOOD
63
MODERATE
El Cajon
46
GOOD
55
MODERATE
Escondido
46
GOOD
57
MODERATE
Otay Mesa
41
GOOD
78
MODERATE
Kearny Mesa
44
GOOD
55
MODERATE
Oceanside
42
GOOD
13
GOOD
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.
