Air Quality Forecast

The air quality forecast for Tuesday, March 2 is for little change in conditions. Air quality levels will be GOOD to MODERATE throughout the day.

The air quality forecast for Wednesday, March 3 is for more favorable 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 a 50

Good

Green

51 a 100

Moderate

Yellow

101 a 150

Unhealthy for Sensitive Groups (U.S.G.)

Orange

151 a 200

Unhealthy

Red

201 a 300

Very Unhealthy

Purple

301 a 500

Hazardous

Maroon

 

City

Forecast Maximum AQI and Pollutant

 

TUESDAY, MARCH 2 WEDNESDAY, MARCH 3

Alpine

61

OZONE

44

OZONE

Chula Vista

48

OZONE

41

OZONE

Del Mar

46

OZONE

40

OZONE

Downtown

46

OZONE

41

OZONE

El Cajon

51

OZONE

44

OZONE

Escondido

51

OZONE

44

OZONE

Otay Mesa

55

PM2.5

42

OZONE

Kearny Mesa

48

OZONE

41

OZONE

Oceanside

46

OZONE

40

OZONE


POLLUTANT SPECIFIC FORECASTS

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

 

TUESDAY, MARCH 2 TUESDAY, MARCH 2

Alpine

61

MODERATE

21

GOOD

Chula Vista

48

GOOD

33

GOOD

Del Mar

46

GOOD

33

GOOD

Downtown

46

GOOD

38

GOOD

El Cajon

51

MODERATE

46

GOOD

Escondido

51

MODERATE

46

GOOD

Otay Mesa

46

GOOD

55

MODERATE

Kearny Mesa

48

GOOD

38

GOOD

Oceanside

46

GOOD

29

GOOD

 

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

 

WEDNESDAY, MARCH 3 WEDNESDAY, MARCH 3

Alpine

44

GOOD

8

GOOD

Chula Vista

41

GOOD

25

GOOD

Del Mar

40

GOOD

21

GOOD

Downtown

41

GOOD

25

GOOD

El Cajon

44

GOOD

29

GOOD

Escondido

44

GOOD

29

GOOD

Otay Mesa

42

GOOD

33

GOOD

Kearny Mesa

41

GOOD

25

GOOD

Oceanside

40

GOOD

21

GOOD

 

 

In cases where this page is not updated properly, or to hear the air pollution forecast, please call our air pollution recording line at (858) 586-2800. 

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