Air Quality Informaton

AIRNow Alerts



    Spare the Air Status for Sunday, October 22, 2017
    No Alert



    Location: Fremont, CA
    Current Air Quality: 10/22/17 12:00 AM PDT

    Good - 21 AQI - Ozone

    Good - 15 AQI - Particle Pollution (2.5 microns)

    Agency: San Francisco Bay Area AQMD
    Last Update: Sun, 22 Oct 2017 12:45:05 PDT


    Location: Fremont, CA
    Forecast:
    Today, 10/22/2017:
    Good - 42 AQI - Particle Pollution (2.5 microns)

    Tomorrow, 10/23/2017:
    Good - 29 AQI - Particle Pollution (2.5 microns)

    Agency: San Francisco Bay Area AQMD
    Last Update: Sun, 22 Oct 2017 12:45:13 PDT

Current Air Quality Index Map

Current AQI
0-50 Good
51-100 Moderate
101-150 Unhealthy for Sensitive Groups
151-200 Unhealthy
201-300 Very Unhealthy
301-500 Hazardous
AQI Maps courtesy of AIRNow.gov


Air Quality Index Map Animation

AQI Animation
0-50 Good
51-100 Moderate
101-150 Unhealthy for Sensitive Groups
151-200 Unhealthy
201-300 Very Unhealthy
301-500 Hazardous
AQI Maps courtesy of AIRNow.gov



  • AQI and Pollutant Forecast for Friday by district.
    North Counties - AQI: 68, Pollutant: PM2.5.
    Coast and Central Bay - AQI: 33, Pollutant: PM2.5.
    Eastern District - AQI: 37, Pollutant: OZONE
    South and Central Bay - AQI: 25, Pollutant: PM2.5
    Santa Clara Valley - AQI: 55, Pollutant: PM2.5
  • AQI and Pollutant Forecast for Saturday by district.
    North Counties - AQI: 53, Pollutant: PM2.5.
    Coast and Central Bay - AQI: 46, Pollutant: PM2.5.
    Eastern District - AQI: 42, Pollutant: OZONE
    South and Central Bay - AQI: 37, Pollutant: OZONE
    Santa Clara Valley - AQI: 42, Pollutant: PM2.5
  • AQI and Pollutant Forecast for Sunday by district.
    North Counties - AQI: 57, Pollutant: PM2.5.
    Coast and Central Bay - AQI: 53, Pollutant: PM2.5.
    Eastern District - AQI: 46, Pollutant: PM2.5
    South and Central Bay - AQI: 42, Pollutant: PM2.5
    Santa Clara Valley - AQI: 50, Pollutant: PM2.5
  • AQI and Pollutant Forecast for Monday by district.
    North Counties - AQI: 78, Pollutant: PM2.5.
    Coast and Central Bay - AQI: 68, Pollutant: PM2.5.
    Eastern District - AQI: 42, Pollutant: PM2.5
    South and Central Bay - AQI: 29, Pollutant: PM2.5
    Santa Clara Valley - AQI: 33, Pollutant: PM2.5
  • AQI and Pollutant Forecast for Tuesday by district.
    North Counties - AQI: Moderate, Pollutant: PM2.5.
    Coast and Central Bay - AQI: Moderate, Pollutant: PM2.5.
    Eastern District - AQI: Moderate, Pollutant: OZONE
    South and Central Bay - AQI: Good, Pollutant: PM2.5
    Santa Clara Valley - AQI: Moderate, Pollutant: OZONE