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Today’s Air Quality & Forecasts

The Goleta and Santa Barbara monitors are 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
2026-09-18T05:00281835
2026-09-18T06:00261734
2026-09-18T07:00231631
2026-09-18T08:00211134
2026-09-18T09:00211237
2026-09-18T10:00161035
2026-09-18T11:00171234
2026-09-18T12:00201331
2026-09-18T13:00221432
2026-09-18T14:00212531
2026-09-18T15:00252333
2026-09-18T16:00252144
2026-09-18T17:00252747
2026-09-18T18:003846
2026-09-18T19:004142
2026-09-18T20:005946
2026-09-18T21:007956
2026-09-18T22:00337858
2026-09-18T23:00327556
2026-09-19T00:00326056
2026-09-19T01:00315157
2026-09-19T02:00313254
2026-09-19T03:00292746
2026-09-19T04:00282142
2026-09-19T05:00241938
2026-09-19T06:00221941
2026-09-19T07:00221740
2026-09-19T08:00191937
2026-09-19T09:00171841
2026-09-19T10:00171742
2026-09-19T11:00241743
2026-09-19T12:00231741
2026-09-19T13:00231438
2026-09-19T14:00261224
2026-09-19T15:00271631
2026-09-19T16:00272041
2026-09-19T17:00272551
2026-09-19T18:00293652
2026-09-19T19:00314148
2026-09-19T20:00324446
2026-09-19T21:00344642
2026-09-19T22:00334346
2026-09-19T23:00353251
2026-09-20T00:00352647
2026-09-20T01:00352446
2026-09-20T02:00332246
2026-09-20T03:00312345
2026-09-20T04:00302151
2026-09-20T05:002151

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).