Hanoi vs Johannesburg

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

Vietnam
Hanoi
117
Unhealthy for Sensitive Groups
South Africa
Johannesburg
156
Unhealthy
MetricHanoiJohannesburg
AQI117156
PM2.554.9 μg/m³52 μg/m³
PM1057.6 μg/m³52.9 μg/m³
Ozone25 ppb13 ppb
NO249.3 ppb65 ppb

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