A free app for Android, by US Dept of State.
ZephAir is the world's most trusted source for reliable, trustworthy, real-time air quality data. With ZephAir, you can see the quality of the air right where you are, regardless of where you are in the world.
ZephAir provides data for more than 70 locations around the world. You can also choose to get notified of the latest air quality information for the locations you care about, so you don't have to remember all the details.
What's New
We have made changes to the way we notify users of the latest air quality information. We have also made changes to the way users view the notification.
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