Air Quality Forecast

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

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

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 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, AUGUST 15 TUESDAY, AUGUST 16

Alpine

93
OZONE
97
OZONE

Chula Vista

53
PM2.5
57
PM2.5

Del Mar

50
PM2.5
46
PM2.5

Downtown

55
PM2.5
57
PM2.5

El Cajon

59
PM2.5
59
PM2.5

Escondido

59
PM2.5
59
PM2.5

Otay Mesa

61
PM2.5
66
PM2.5

Kearny Mesa

50
PM2.5
50
PM2.5

Oceanside

46
PM2.5
46
PM2.5


POLLUTANT SPECIFIC FORECASTS

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

 

MONDAY, AUGUST 15 MONDAY, AUGUST 15

Alpine

93

MODERATE

50

GOOD

Chula Vista

41

GOOD

53

MODERATE

Del Mar

44

GOOD

50

GOOD

Downtown

35

GOOD

55

MODERATE

El Cajon

51

MODERATE

59

MODERATE

Escondido

51

MODERATE

59

MODERATE

Otay Mesa

49

GOOD

61

MODERATE

Kearny Mesa

44

GOOD

50

GOOD

Oceanside

44

GOOD

46

GOOD

 

City

Forecast Maximum AQI OZONE

Forecast Maximum AQI PM2.5

 

TUESDAY, AUGUST 16 TUESDAY, AUGUST 16

Alpine

97

MODERATE

53

MODERATE

Chula Vista

42

GOOD

57
MODERATE

Del Mar

41

GOOD

46

GOOD

Downtown

38

GOOD

57
MODERATE

El Cajon

58

MODERATE
59
MODERATE

Escondido

58

MODERATE
59
MODERATE

Otay Mesa

61

MODERATE
66
MODERATE

Kearny Mesa

45

GOOD

50

GOOD

Oceanside

42

GOOD

46

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.