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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
2026-10-29T14:00121920
2026-10-29T15:00162027
2026-10-29T16:00211930
2026-10-29T17:00241926
2026-10-29T18:00311727
2026-10-29T19:00321630
2026-10-29T20:00361532
2026-10-29T21:00371427
2026-10-29T22:00401419
2026-10-29T23:00381418
2026-10-30T00:00361523
2026-10-30T01:00341725
2026-10-30T02:00311923
2026-10-30T03:00311920
2026-10-30T04:00271821
2026-10-30T05:00281719
2026-10-30T06:00281621
2026-10-30T07:00251532
2026-10-30T08:00231833
2026-10-30T09:00221424
2026-10-30T10:00221326
2026-10-30T11:00161224
2026-10-30T12:00151328
2026-10-30T13:00141331
2026-10-30T14:00121832
2026-10-30T15:00141929
2026-10-30T16:00182442
2026-10-30T17:00222041
2026-10-30T18:00272031
2026-10-30T19:00302032
2026-10-30T20:00322230
2026-10-30T21:00342029
2026-10-30T22:00341234
2026-10-30T23:00331331
2026-10-31T00:00351429
2026-10-31T01:00311326
2026-10-31T02:00301732
2026-10-31T03:00291733
2026-10-31T04:00261938
2026-10-31T05:00201938
2026-10-31T06:00181730
2026-10-31T07:00131532
2026-10-31T08:0091238
2026-10-31T09:0061236
2026-10-31T10:0061126
2026-10-31T11:0061027
2026-10-31T12:008924
2026-10-31T13:008924

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).