Air Quality Forecast

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The air quality forecast for Tuesday, March 28, 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

TUESDAY, MARCH 28

MONDAY, MARCH 27

Alpine

46

OZONE

43

OZONE

Chula Vista

38

PM2.5

37

OZONE

Del Mar

42

OZONE

39

OZONE

Downtown

38

PM2.5

37

OZONE

El Cajon

50

PM2.5

39

OZONE

Escondido

50

PM2.5

39

OZONE

Otay Mesa

50

PM2.5

43

OZONE

Kearny Mesa

42

OZONE

42

OZONE

Oceanside

42

OZONE

40

OZONE


POLLUTANT SPECIFIC FORECASTS

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

TUESDAY, MARCH 28

TUESDAY, MARCH 28

Alpine

46

GOOD

25

GOOD

Chula Vista

37

GOOD

38

GOOD

Del Mar

42

GOOD

38

GOOD

Downtown

37

GOOD

38

GOOD

El Cajon

42

GOOD

50

GOOD

Escondido

42

GOOD

50

GOOD

Otay Mesa

42

GOOD

50

GOOD

Kearny Mesa

42

GOOD

38

GOOD

Oceanside

42

GOOD

38

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.

BR / 1630 PST