Chennai vs Rio de Janeiro

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

India
Chennai
112
Unhealthy for Sensitive Groups
Brazil
Rio de Janeiro
62
Moderate
MetricChennaiRio de Janeiro
AQI11262
PM2.515.5 μg/m³24.9 μg/m³
PM1020.1 μg/m³28.5 μg/m³
Ozone64 ppb180 ppb
NO211.2 ppb18.1 ppb

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