The air quality forecast for Saturday, February 4, is for more favorable conditions. Air quality levels will be GOOD to MODERATE throughout the day.
The air quality forecast for Sunday, February 5, is for little change in conditions. Air quality levels will be GOOD to MODERATE throughout the day.
The air quality forecast for Monday, February 6, is for little change in conditions. Air quality levels will be GOOD to MODERATE throughout the day.
Forecasts for Sunday and Monday are issued on Friday and subject to be slightly different due to unexpected changes in meteorological conditions. Please refer to the "Current Ozone & PM2.5 Pollution Map" for up to date information.
Air quality reports use the Air Quality Index, which represents the higher of three pollutants - PM2.5, PM10 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)or less than 10 microns (PM10), 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
FEBRUARY 4
FEBRUARY 5
FEBRUARY 6
FEBRUARY 3
Alpine
38
OZONE
38
OZONE
38
OZONE
47
OZONE
Chula Vista
45
PM2.5
45
PM2.5
49
PM2.5
64
PM2.5
Del Mar
42
PM2.5
42
PM2.5
45
PM2.5
47
PM2.5
Downtown
60
PM2.5
60
PM2.5
65
PM2.5
76
PM2.5
El Cajon
42
PM2.5
42
PM2.5
45
PM2.5
53
PM2.5
Escondido
42
PM2.5
42
PM2.5
45
PM2.5
42
PM2.5
Otay Mesa
60
PM2.5
60
PM2.5
65
PM2.5
76
PM2.5
Kearny Mesa
42
PM2.5
42
PM2.5
45
PM2.5
60
PM2.5
Oceanside
36
PM2.5
36
PM2.5
39
PM2.5
34
PM2.5
POLLUTANT SPECIFIC FORECASTS
City
Forecast Maximum AQI
OZONE
FEBRUARY 4
FEBRUARY 5
FEBRUARY 6
Alpine
38
GOOD
38
GOOD
38
GOOD
Chula Vista
34
GOOD
34
GOOD
34
GOOD
Del Mar
30
GOOD
30
GOOD
30
GOOD
Downtown
25
GOOD
25
GOOD
25
GOOD
El Cajon
34
GOOD
34
GOOD
34
GOOD
Escondido
34
GOOD
34
GOOD
34
GOOD
Otay Mesa
25
GOOD
25
GOOD
25
GOOD
Kearny Mesa
30
GOOD
30
GOOD
30
GOOD
Oceanside
34
GOOD
34
GOOD
34
GOOD
City
Forecast Maximum AQI
PM2.5
FEBRUARY 4
FEBRUARY 5
FEBRUARY 6
Alpine
29
GOOD
29
GOOD
29
GOOD
Chula Vista
45
GOOD
45
GOOD
49
GOOD
Del Mar
42
GOOD
42
GOOD
45
GOOD
Downtown
60
MODERATE
60
MODERATE
65
MODERATE
El Cajon
42
GOOD
42
GOOD
45
GOOD
Escondido
42
GOOD
42
GOOD
45
GOOD
Otay Mesa
60
MODERATE
60
MODERATE
65
MODERATE
Kearny Mesa
42
GOOD
42
GOOD
45
GOOD
Oceanside
36
GOOD
36
GOOD
39
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) 586-2707. If you have an air pollution complaint, or see an air pollution problem, please call (858) 586-2650. Thank you.
