Air Quality Forecast

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The air quality forecast for Thursday, February 22, is for little change in conditions.  Air quality levels will be GOOD 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

  THURSDAY, FEBRUARY 22

WEDNESDAY, FEBRUARY 21

Alpine

41

OZONE

42

OZONE

Chula Vista

37

OZONE

40

OZONE

Del Mar

39

OZONE

41

OZONE

Downtown

37

OZONE

40

OZONE

El Cajon

39

OZONE

41

OZONE

Escondido

39

OZONE

41

OZONE

Otay Mesa

40

OZONE

42

OZONE

Kearny Mesa

37

OZONE

40

OZONE

Oceanside

39

OZONE

41

OZONE


POLLUTANT SPECIFIC FORECASTS

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

THURSDAY, FEBRUARY 22

THURSDAY, FEBRUARY 22

Alpine

41

GOOD

13

GOOD

Chula Vista

37

GOOD

29

GOOD

Del Mar

39

GOOD

29

GOOD

Downtown

37

GOOD

29

GOOD

El Cajon

39

GOOD

33

GOOD

Escondido

39

GOOD

33

GOOD

Otay Mesa

40

GOOD

33

GOOD

Kearny Mesa

37

GOOD

29

GOOD

Oceanside

39

GOOD

29

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.

JD / 1630 PST