Air Quality Forecast

The air quality forecast for Friday, June 14, is for little change in conditions. Air quality levels will be GOOD to MODERATE throughout the day.

The air quality forecast for Saturday, June 15, is for little change in conditions. Air quality levels will be GOOD to MODERATE throughout the day.

The air quality forecast for Sunday, June 16, is for little change in conditions. Air quality levels will be GOOD to MODERATE throughout the day.

The air quality forecast for Monday, June 17, is for more favorable 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.

AQI Values

Levels of 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

 

Forecast Daily Maximum AQI

CITY

FRIDAY, JUNE 14

SATURDAY, JUNE 15

SUNDAY, JUNE 16

MONDAY, JUNE 17

Alpine

67

OZONE

100

OZONE

80

OZONE

54

OZONE

Chula Vista

43

OZONE

49

OZONE

50

PM2.5

44

PM2.5

Del Mar

41

OZONE

47

OZONE

44

OZONE

40

OZONE

Downtown

41

OZONE

46

OZONE

44

PM2.5

41

OZONE

El Cajon

54

OZONE

74

OZONE

51

OZONE

46

OZONE

Escondido

54

OZONE

74

OZONE

51

OZONE

46

OZONE

Otay Mesa

55

PM2.5

58

OZONE

55

PM2.5

53

PM2.5

Kearny Mesa

45

OZONE

51

OZONE

49

OZONE

44

OZONE

Oceanside

41

OZONE

47

OZONE

44

OZONE

40

OZONE

 

Forecast Pollutant Specific Maximum AQI

FRIDAY, JUNE 14

CITY

OZONE

PM2.5

Alpine

67

MODERATE

39

GOOD

Chula Vista

43

GOOD

39

GOOD

Del Mar

41

GOOD

33

GOOD

Downtown

41

GOOD

33

GOOD

El Cajon

54

MODERATE

39

GOOD

Escondido

54

MODERATE

39

GOOD

Otay Mesa

48

GOOD

55

MODERATE

Kearny Mesa

45

GOOD

33

GOOD

Oceanside

41

GOOD

33

GOOD

         

SATURDAY, JUNE 15

CITY

OZONE

PM2.5

Alpine

100

MODERATE

33

GOOD

Chula Vista

49

GOOD

44

GOOD

Del Mar

47

GOOD

39

GOOD

Downtown

46

GOOD

39

GOOD

El Cajon

74

MODERATE

50

GOOD

Escondido

74

MODERATE

50

GOOD

Otay Mesa

58

MODERATE

53

MODERATE

Kearny Mesa

51

MODERATE

39

GOOD

Oceanside

47

GOOD

39

GOOD

         

SUNDAY, JUNE 16

CITY

OZONE

PM2.5

Alpine

80

MODERATE

39

GOOD

Chula Vista

45

GOOD

50

GOOD

Del Mar

44

GOOD

33

GOOD

Downtown

43

GOOD

44

GOOD

El Cajon

51

MODERATE

44

GOOD

Escondido

51

MODERATE

44

GOOD

Otay Mesa

48

GOOD

55

MODERATE

Kearny Mesa

49

GOOD

33

GOOD

Oceanside

44

GOOD

33

GOOD

         

MONDAY, JUNE 17

CITY

OZONE

PM2.5

Alpine

54

MODERATE

33

GOOD

Chula Vista

42

GOOD

44

GOOD

Del Mar

40

GOOD

28

GOOD

Downtown

41

GOOD

39

GOOD

El Cajon

46

GOOD

39

GOOD

Escondido

46

GOOD

39

GOOD

Otay Mesa

44

GOOD

53

MODERATE

Kearny Mesa

44

GOOD

33

GOOD

Oceanside

40

GOOD

28

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) 586-2769. If you have an air pollution complaint, or see an air pollution problem, please call (858) 586-2650. Thank you.