Air Quality Forecast

The air quality forecast for Friday, February 26 is for little change in conditions. Air quality levels will be GOOD to MODERATE throughout the day.

The air quality forecast for Saturday, February 27 is for less favorable conditions. Air quality levels will be GOOD to MODERATE throughout the day.

The air quality forecast for Sunday, February 28 is for more favorable conditions. Air quality levels will be GOOD to MODERATE throughout the day.

The air quality forecast for Monday, March 1 is for little change in conditions. Air quality levels will be GOOD to MODERATE throughout the day.

 

The Forecast for Sunday and Monday was 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 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

 

FEBRUARY 26

FEBRUARY 27

FEBRUARY 28

MARCH 1

Alpine

51

OZONE

58

OZONE

46

OZONE

51

OZONE

Chula Vista

43

OZONE

46

OZONE

44

OZONE

45

OZONE

Del Mar

41

OZONE

40

OZONE

43

OZONE

42

OZONE

Downtown

46

PM2.5

53

PM2.5

44

OZONE

45

OZONE

El Cajon

46

OZONE

55

PM2.5

45

OZONE

49
OZONE

Escondido

46

OZONE

57

PM2.5

45

OZONE

49

OZONE

Otay Mesa

55

PM2.5

78

PM2.5

57

PM2.5

59

PM2.5

Kearny Mesa

44

OZONE

46

OZONE

44

OZONE

48

OZONE

Oceanside

41

OZONE

40

OZONE

43

OZONE

42

OZONE



POLLUTANT SPECIFIC FORECASTS

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

 

FRIDAY, FEBRUARY 26 FRIDAY, FEBRUARY 26

Alpine

51

MODERATE

13

GOOD

Chula Vista

43

GOOD

42

GOOD

Del Mar

41

GOOD

38

GOOD

Downtown

42

GOOD

46

GOOD

El Cajon

46

GOOD

42

GOOD

Escondido

46

GOOD

42

GOOD

Otay Mesa

44

GOOD

55

MODERATE

Kearny Mesa

44

GOOD

42

GOOD

Oceanside

41

GOOD

38

GOOD

 

 

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

 

SATURDAY, FEBRUARY 27 SATURDAY, FEBRUARY 27

Alpine

58

MODERATE

21

GOOD

Chula Vista

46

GOOD

46

GOOD

Del Mar

40

GOOD

38

GOOD

Downtown

42

GOOD

53

MODERATE

El Cajon

51

MODERATE

55

MODERATE

Escondido

51

MODERATE

57

MODERATE

Otay Mesa

44

GOOD

78

MODERATE

Kearny Mesa

46

GOOD

46

GOOD

Oceanside

40

GOOD

38

GOOD

 

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

 

SUNDAY, FEBRUARY 28 SUNDAY, FEBRUARY 28

Alpine

46

GOOD

13

GOOD

Chula Vista

44

GOOD

29

GOOD

Del Mar

43

GOOD

29

GOOD

Downtown

44

GOOD

33

GOOD

El Cajon

45

GOOD

38

GOOD

Escondido

45

GOOD

42

GOOD

Otay Mesa

44

GOOD

57

MODERATE

Kearny Mesa

44

GOOD

29

GOOD

Oceanside

43

GOOD

29

GOOD

 

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

 

MONDAY, MARCH 1 MONDAY, MARCH 1

Alpine

51

MODERATE

25

GOOD

Chula Vista

45

GOOD

38

GOOD

Del Mar

42

GOOD

33

GOOD

Downtown

45

GOOD

42

GOOD

El Cajon

49

GOOD

42

GOOD

Escondido

49

GOOD

46

GOOD

Otay Mesa

44

GOOD

59

MODERATE

Kearny Mesa

48

GOOD

38

GOOD

Oceanside

42

GOOD

33

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