Hanoi vs Sydney

Live air quality comparison. Sydney has cleaner air right now.

Vietnam
Hanoi
99
Moderate
Australia
Sydney
59
Moderate
MetricHanoiSydney
AQI9959
PM2.526.7 μg/m³3.6 μg/m³
PM1028.2 μg/m³4.6 μg/m³
Ozone54 ppb41 ppb
NO229.3 ppb16.9 ppb

Lower values mean cleaner air. Updated hourly. Sources: OpenAQ, Open-Meteo.