Apps similar to Air app include AirIndex.today, which is free. Other options are AQI and SmogBar. In total there are three Weather Forecast Tools like Air app for Mac and the web.
Air Index Today is a free air quality service that shows the current AQI for any city, along with today's and tomorrow's hourly forecasts, peak AQI times, and a 5-day daily trend. A full pollutant breakdown covers PM2.
AQI keeps you informed about the air quality near you and notifies you when its time to close your windows or open them up again and get some fresh air.
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