Taipei Air Quality — Live AQI & Northern Taiwan Forecast

Taipei sits in a basin surrounded by mountains, so pollutants can accumulate when winds are weak. Scooter and vehicle emissions produce nitrogen dioxide and fine particles along arterial roads, while regional industrial plumes add to background levels.

Northeast monsoon flows and typhoon rains often improve air quality for days at a time. Winter and early spring, however, can bring imported particle episodes and local stagnation that raise AQI across the capital.

Hourly forecasts help commuters and runners pick cleaner windows, especially before rush-hour builds. Indoor activity may be preferable when regional transport pushes PM2.5 into orange or red bands.