London vs Rio de Janeiro

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

United Kingdom
London
43
Good
Brazil
Rio de Janeiro
196
Unhealthy
MetricLondonRio de Janeiro
AQI43196
PM2.54.7 μg/m³24.4 μg/m³
PM106.4 μg/m³25.9 μg/m³
Ozone71 ppb188 ppb
NO27.3 ppb23.9 ppb

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