The air quality forecast for Tuesday, July 7 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, JULY 7
MONDAY, JULY 6
Alpine
74
OZONE
80
OZONE
Chula Vista
46
PM2.5
43
PM2.5
Del Mar
46
PM2.5
43
PM2.5
Downtown
53
PM2.5
50
PM2.5
El Cajon
55
PM2.5
58
OZONE
Escondido
55
PM2.5
58
OZONE
Otay Mesa
59
PM2.5
65
PM2.5
Kearny Mesa
50
PM2.5
45
OZONE
Oceanside
46
PM2.5
43
PM2.5
POLLUTANT SPECIFIC FORECASTS
City
Forecast Maximum AQI OZONE
Forecast Maximum AQI PM2.5
TUESDAY, JULY 7
TUESDAY, JULY 7
Alpine
74
MODERATE
25
GOOD
Chula Vista
37
GOOD
46
GOOD
Del Mar
38
GOOD
46
GOOD
Downtown
37
GOOD
53
MODERATE
El Cajon
54
MODERATE
55
MODERATE
Escondido
54
MODERATE
55
MODERATE
Otay Mesa
48
GOOD
59
MODERATE
Kearny Mesa
46
GOOD
50
GOOD
Oceanside
38
GOOD
46
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.
