Vietnam Air Quality Alerts is a free calendar you can subscribe to on Nundina, with 209 dates listed. Data from Open-Meteo. Subscribe to it on Nundina and every date lands in your own calendar, updated automatically.
Days when the air in a major Vietnamese city is forecast to turn unhealthy. One all-day entry per city per day whose peak US AQI reaches 101 or above, with the pollution band, the peak hour and the PM2.5 / PM10 behind it. Forecast from the CAMS atmospheric model via Open-Meteo, not a ground-station reading.
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