Check out the air quality layer on Google Maps for both Android and iOS, to help you make more informed decisions about whether it’s safe to go on a hike or other outdoor adventures. You’ll see Air Quality Index (AQI), a measure of how healthy (or unhealthy) the air is, along with guidance for outdoor activities, when the information was last updated, and links to learn more.
Google says the air quality layer is based on data from government agencies including the EPA and from PurpleAir, a low-cost sensor network which gives a more hyperlocal view of conditions.
To add the air quality layer to your map, simply tap on the button in the top right corner of your screen, then select Air Quality under Map details. You can also view air quality information from PurpleAir on Nest displays and speakers.
You can download Google Maps from the App Store for free.