Kolkata vs Rio de Janeiro

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

India
Kolkata
123
Unhealthy for Sensitive Groups
Brazil
Rio de Janeiro
204
Very Unhealthy
MetricKolkataRio de Janeiro
AQI123204
PM2.551.7 μg/m³27.9 μg/m³
PM1064 μg/m³28.4 μg/m³
Ozone72 ppb159 ppb
NO214.1 ppb32.8 ppb

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