Air Quality Forecast 


The air quality forecast for Monday,, October 25 is for little change in conditions. Air quality levels will be GOOD throughout the day.

The air quality forecast for Tuesday, October 26 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 and Pollutant

 

MONDAY, OCTOBER 25 TUESDAY, OCTOBER 26

Alpine

46

OZONE

44

OZONE

Chula Vista

35

OZONE

37

OZONE

Del Mar

34
OZONE
37
OZONE

Downtown

32
OZONE
32
OZONE

El Cajon

39
OZONE
37
OZONE

Escondido

39

OZONE

37

OZONE

Otay Mesa

35
OZONE
37
OZONE

Kearny Mesa

37

OZONE

37

OZONE

Oceanside

34
OZONE
37
OZONE


POLLUTANT SPECIFIC FORECASTS

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

 

MONDAY, OCTOBER 25 MONDAY, OCTOBER 25

Alpine

46

GOOD

17

GOOD

Chula Vista

35

GOOD

21

GOOD

Del Mar

34

GOOD

21

GOOD

Downtown

32

GOOD

21

GOOD

El Cajon

39

GOOD

21

GOOD

Escondido

39

GOOD

21

GOOD

Otay Mesa

35

GOOD

25

GOOD

Kearny Mesa

37

GOOD

21

GOOD

Oceanside

34

GOOD

21

GOOD

 

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

 

TUESDAY, OCTOBER 26 TUESDAY, OCTOBER 26

Alpine

44

GOOD

21

GOOD

Chula Vista

37

GOOD

21

GOOD

Del Mar

37

GOOD

21

GOOD

Downtown

32

GOOD

21

GOOD

El Cajon

37

GOOD

21

GOOD

Escondido

37

GOOD

21

GOOD

Otay Mesa

37

GOOD

25

GOOD

Kearny Mesa

37

GOOD

21

GOOD

Oceanside

37

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

BR