Houston vs Cairo

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

United States
Houston
69
Moderate
Egypt
Cairo
71
Moderate
MetricHoustonCairo
AQI6971
PM2.537 μg/m³18.2 μg/m³
PM1039 μg/m³33.5 μg/m³
Ozone42 ppb31 ppb
NO250.2 ppb42.7 ppb

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