Your County Government Community
Services
Healthy
Kids & Families
Business
Resources
Environment Public Safety Jobs

Air Quality Forecast

Font Size Extra Large Font Size Large Font Size Default



The air quality forecast for Friday, February 5, 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

FRIDAY, FEBRUARY 5

THURSDAY, FEBRUARY 4

Alpine

46

OZONE

44

OZONE

Chula Vista

38

PM2.5

34

PM2.5

Del Mar

32

OZONE

32

OZONE

Downtown

38

PM2.5

38

PM2.5

El Cajon

42

PM2.5

39

PM2.5

Escondido

42

PM2.5

39

PM2.5

Otay Mesa

42

PM2.5

39

PM2.5

Kearny Mesa

37

OZONE

36

OZONE

Oceanside

32

OZONE

32

OZONE


POLLUTANT SPECIFIC FORECASTS

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

FRIDAY, FEBRUARY 5

FRIDAY, FEBRUARY 5

Alpine

46

GOOD

13

GOOD

Chula Vista

32

GOOD

38

GOOD

Del Mar

32

GOOD

21

GOOD

Downtown

32

GOOD

38

GOOD

El Cajon

37

GOOD

42

GOOD

Escondido

37

GOOD

42

GOOD

Otay Mesa

32

GOOD

42

GOOD

Kearny Mesa

37

GOOD

33

GOOD

Oceanside

32

GOOD

21

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