The air quality forecast for Monday, February 17, is for little change in conditions. Air quality levels will be GOOD to MODERATE throughout the day.
The air quality forecast for Tuesday, February 18, 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
and Pollutant
Measured Maximum AQI
and Pollutant
MONDAY, FEBRUARY 17
TUESDAY, FEBRUARY 18
SUNDAY, FEBRUARY 16
Alpine
49
OZONE
48
OZONE
51
OZONE
Chula Vista
46
PM2.5
46
PM2.5
47
OZONE
Del Mar
42
OZONE
42
OZONE
47
OZONE
Downtown
53
PM2.5
53
PM2.5
53
PM2.5
El Cajon
53
PM2.5
53
PM2.5
52
PM2.5
Escondido
53
PM2.5
53
PM2.5
52
PM2.5
Otay Mesa
61
PM2.5
61
PM2.5
66
PM2.5
Kearny Mesa
46
OZONE
46
PM2.5
50
OZONE
Oceanside
42
OZONE
42
OZONE
47
OZONE
POLLUTANT SPECIFIC FORECASTS
City
Forecast Maximum AQI
OZONE
MONDAY, FEBRUARY 17
TUESDAY, FEBRUARY 18
Alpine
49
GOOD
48
GOOD
Chula Vista
44
GOOD
44
GOOD
Del Mar
42
GOOD
42
GOOD
Downtown
42
GOOD
42
GOOD
El Cajon
46
GOOD
45
GOOD
Escondido
46
GOOD
45
GOOD
Otay Mesa
46
GOOD
45
GOOD
Kearny Mesa
46
GOOD
45
GOOD
Oceanside
42
GOOD
42
GOOD
City
Forecast Maximum AQI
PM2.5
MONDAY, FEBRUARY 17
TUESDAY, FEBRUARY 18
Alpine
25
GOOD
29
GOOD
Chula Vista
46
GOOD
46
GOOD
Del Mar
42
GOOD
42
GOOD
Downtown
53
MODERATE
53
MODERATE
El Cajon
53
MODERATE
53
MODERATE
Escondido
53
MODERATE
53
MODERATE
Otay Mesa
61
MODERATE
61
MODERATE
Kearny Mesa
46
GOOD
46
GOOD
Oceanside
42
GOOD
42
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.
