Air Quality Index Alerts

The Allegheny County Health Department (ACHD) measures air quality every day using monitors throughout the County, and the readings of those monitors are classified on an Air Quality Index (AQI). If the AQI is forecasted to be over 100 on a given day, ACHD issues an Air Quality Watch. If the AQI is measured at over 100, ACHD issues an Air Quality Warning. This information is then communicated over the Allegheny Alerts system.

If you would like to receive alerts go to and enter your contact information. When an alert is sent on a topic you’ve chosen, you’ll receive it on the devices you’ve selected. Get an email at work, text on your cell and call at home – as many or few as you want. There’s even an app for it. You can add, delete and change your devices and topics any time. It’s all up to you.

To understand more about our air quality and the index check out the brochure here.

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