Kolkata vs Seattle

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

India
Kolkata
190
Unhealthy
United States
Seattle
55
Moderate
MetricKolkataSeattle
AQI19055
PM2.568 μg/m³8.7 μg/m³
PM1073.3 μg/m³9.7 μg/m³
Ozone180 ppb41 ppb
NO28.1 ppb25.4 ppb

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