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Today’s Air Quality & Forecasts

The Santa Barbara monitor is currently offline. We apologize for the inconvenience. In the meantime, please refer to the readings from the other monitoring stations.

Current Air Quality Conditions

Air quality values and colors shown here correspond with the Air Quality Index (AQI). More information about AQI is available at the bottom of this webpage.

The grid below shows current AQI air quality conditions for each pollutant that is measured at each of our monitoring stations. By clicking the “Show” button on each monitoring station box, you can see what the AQI conditions were for the past 24 hours, shown in a rolling format.

HourOZONEPM10PM2.5
2026-10-02T08:00171038
2026-10-02T09:0018836
2026-10-02T10:0018642
2026-10-02T11:0011643
2026-10-02T12:0010636
2026-10-02T13:0012537
2026-10-02T14:0013635
2026-10-02T15:0011637
2026-10-02T16:0013833
2026-10-02T17:00161636
2026-10-02T18:00202339
2026-10-02T19:00253037
2026-10-02T20:00262742
2026-10-02T21:00282949
2026-10-02T22:00323347
2026-10-02T23:00334652
2026-10-03T00:00314053
2026-10-03T01:00303755
2026-10-03T02:00273052
2026-10-03T03:00242543
2026-10-03T04:00212538
2026-10-03T05:00192649
2026-10-03T06:00142249
2026-10-03T07:00132041
2026-10-03T08:00132051
2026-10-03T09:00121951
2026-10-03T10:00121742
2026-10-03T11:0071640
2026-10-03T12:0071431
2026-10-03T13:0081935
2026-10-03T14:0082437
2026-10-03T15:00154746
2026-10-03T16:00195751
2026-10-03T17:00266144
2026-10-03T18:00316455
2026-10-03T19:00377255
2026-10-03T20:00366652
2026-10-03T21:00345935
2026-10-03T22:00345534
2026-10-03T23:00343933
2026-10-04T00:00313128
2026-10-04T01:00333136
2026-10-04T02:00272632
2026-10-04T03:00242527
2026-10-04T04:00202430
2026-10-04T05:00182329
2026-10-04T06:00112526
2026-10-04T07:00102732
2026-10-04T08:002732

Forecasts

Air quality values and colors shown here correspond with the Air Quality Index (AQI). More information about AQI is available at the bottom of this webpage

Historical Data

To check “AQI Summary by Date”, click the link above which will direct you to EPA’s AirNow website. Select the “Archive” header on the new webpage. Then, use the calendar tool at the bottom of the webpage to select the historical date. On the left side of the screen, there are options to focus on specific pollutants using both the “Contours” and “Monitors” layers.

EPA AirNow Fire and Smoke Map

The EPA has launched a sensor data pilot project on the AirNow Fire and Smoke Map (opens in a new tab) that is designed to provide the public with additional information on levels of fine particle pollution in the air, particularly during wildfires. The Fire and Smoke Map displays air quality data from permanent monitors, temporary monitors, and low-cost sensors. The map uses the EPA’s Air Quality Index (AQI) rating system (see description below). 

For additional information on California wildfires, see outlooks and smoke reports posted on the California Smoke Information (opens in a new tab) website.

AQI Values ​​and Recommendations

Refer to the AQI table below to understand how to interpret the AQI colors shown in the table and forecast above. The Index numbers represent a classification of the pollutant, not a direct measurement of the pollutant itself. To view concentration values — which show the actual measured levels of the pollutant — please visit the “Station Data” webpage (currently available only in English). The Index below presents classifications for ozone, particulate matter with a diameter of less than 10 microns (PM10), and particulate matter with a diameter of less than 2.5 microns (PM2.5).

Note: All data are preliminary and subject to verification.

To view instances where standards were exceeded, please refer to “Days Exceeding Particulate and Ozone Standards” (currently available only in English).