Air Quality Forecast

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The air quality forecast for Wednesday, November 13, is for little change in conditions.  Air quality levels will be GOOD to MODERATE 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

  WEDNESDAY, NOVEMBER 13

TUESDAY, NOVEMBER 12

Alpine

77

OZONE

64

OZONE

Chula Vista

57

PM2.5

56

PM2.5

Del Mar

42

OZONE

41

OZONE

Downtown

63

PM2.5

62

PM2.5

El Cajon

55

PM2.5

53

PM2.5

Escondido

57

PM2.5

54

PM2.5

Otay Mesa

78

PM2.5

85

PM2.5

Kearny Mesa

55

PM2.5

54

PM2.5

Oceanside

42

OZONE

41

OZONE


POLLUTANT SPECIFIC FORECASTS

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

WEDNESDAY, NOVEMBER 13

WEDNESDAY, NOVEMBER 13

Alpine

77

MODERATE

25

GOOD

Chula Vista

44

GOOD

57

MODERATE

Del Mar

42

GOOD

13

GOOD

Downtown

43

GOOD

63

MODERATE

El Cajon

46

GOOD

55

MODERATE

Escondido

46

GOOD

57

MODERATE

Otay Mesa

41

GOOD

78

MODERATE

Kearny Mesa

44

GOOD

55

MODERATE

Oceanside

42

GOOD

13

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.

JD / 1630 PDT