Kolkata vs Rio de Janeiro

Live air quality comparison. Rio de Janeiro has cleaner air right now.

India
Kolkata
115
Unhealthy for Sensitive Groups
Brazil
Rio de Janeiro
105
Unhealthy for Sensitive Groups
MetricKolkataRio de Janeiro
AQI115105
PM2.533.8 μg/m³21 μg/m³
PM1041.4 μg/m³26.4 μg/m³
Ozone79 ppb109 ppb
NO29.1 ppb25.1 ppb

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