Chennai vs Saint Petersburg

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

India
Chennai
68
Moderate
Russia
Saint Petersburg
54
Moderate
MetricChennaiSaint Petersburg
AQI6854
PM2.518.9 μg/m³10.2 μg/m³
PM1022.7 μg/m³12.8 μg/m³
Ozone25 ppb16 ppb
NO223.3 ppb37.7 ppb

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