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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
2026-10-15T00:00385938
2026-10-15T01:00375730
2026-10-15T02:00354437
2026-10-15T03:00263841
2026-10-15T04:00223434
2026-10-15T05:00223131
2026-10-15T06:00192726
2026-10-15T07:00172427
2026-10-15T08:00172436
2026-10-15T09:00182332
2026-10-15T10:00182024
2026-10-15T11:00162123
2026-10-15T12:00182336
2026-10-15T13:00162537
2026-10-15T14:00143635
2026-10-15T15:00194242
2026-10-15T16:00234538
2026-10-15T17:00254422
2026-10-15T18:00293513
2026-10-15T19:00332821
2026-10-15T20:00364524
2026-10-15T21:00395226
2026-10-15T22:00435127
2026-10-15T23:00415027
2026-10-16T00:00404727
2026-10-16T01:00394836
2026-10-16T02:00384237
2026-10-16T03:00353829
2026-10-16T04:00293626
2026-10-16T05:00293529
2026-10-16T06:00283126
2026-10-16T07:00252727
2026-10-16T08:00202924
2026-10-16T09:00202426
2026-10-16T10:00202129
2026-10-16T11:00171934
2026-10-16T12:00161933
2026-10-16T13:00272433
2026-10-16T14:00265039
2026-10-16T15:00256239
2026-10-16T16:00276131
2026-10-16T17:00337721
2026-10-16T18:00326410
2026-10-16T19:0033655
2026-10-16T20:0033568
2026-10-16T21:0036499
2026-10-16T22:00394610
2026-10-16T23:00394610

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).