Kolkata vs Saint Petersburg

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

India
Kolkata
198
Unhealthy
Russia
Saint Petersburg
44
Good
MetricKolkataSaint Petersburg
AQI19844
PM2.557.5 μg/m³4.5 μg/m³
PM1060.5 μg/m³8.8 μg/m³
Ozone197 ppb29 ppb
NO211.6 ppb23.6 ppb

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