Chennai vs Saint Petersburg

Live air quality comparison. Saint Petersburg has cleaner air right now.

India
Chennai
70
Moderate
Russia
Saint Petersburg
47
Good
MetricChennaiSaint Petersburg
AQI7047
PM2.520.8 μg/m³13.6 μg/m³
PM1032.4 μg/m³15.4 μg/m³
Ozone68 ppb44 ppb
NO214.6 ppb29 ppb

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