Taiwan Air Quality: AQI Now

Live AQI, PM2.5 & smoke alerts

Only for iPhone

Free · Designed for iPhone. Not verified for macOS.

iPhone

See why the air is bad: wind, upwind stations, wildfire hotspots and the official forecast, in plain language. Real-time air quality for all 84 official monitoring stations in Taiwan, plus nearby stations when you travel abroad. • Nearest station first: AQI, PM2.5, PM10, ozone and more, with simple health advice • Likely causes: wind direction, upwind stations, the official forecast and NASA wildfire hotspots help explain whether pollution is blowing in, building up locally, dust or smoke • Pollution alerts: pick a station and a threshold (AQI 100/150/200); quiet at night • 24-hour chart, map and favorites (home, work) • Abroad: nearby stations from OpenAQ with the same cause analysis Data: Ministry of Environment, Taiwan (open data); OpenAQ; MET Norway (CC BY 4.0); NASA FIRMS. The cause analysis is an estimate for reference only.

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• New “Likely causes”: wind, upwind stations, the official forecast and NASA wildfire hotspots help estimate whether pollution is blowing in, building up locally, dust or smoke (for reference only) • Works abroad: outside Taiwan you’ll see nearby stations with the same cause analysis • The app now follows your phone’s language: Traditional Chinese, Simplified Chinese, English, Japanese and Korean (switchable in Settings)

The developer, HAO-CHUN TSAI, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

Seller
HAO-CHUN TSAI
Size
29 MB
Category
Weather
Compatibility
Requires iOS 15.1 or later.
  • iPhone
    Requires iOS 15.1 or later.
  • iPod touch
    Requires iOS 15.1 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 4 more
  • English, Japanese, Korean, Simplified Chinese, Traditional Chinese
Age Rating
4+
Copyright
© 2026 HAO-CHUN TSAI