Sao Paulo vs Hanoi

Live air quality comparison. Sao Paulo has cleaner air right now.

Brazil
Sao Paulo
137
Unhealthy for Sensitive Groups
Vietnam
Hanoi
147
Unhealthy for Sensitive Groups
MetricSao PauloHanoi
AQI137147
PM2.514.5 μg/m³62.9 μg/m³
PM1014.6 μg/m³63.3 μg/m³
Ozone84 ppb71 ppb
NO224.5 ppb29 ppb

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