Houston vs Cairo

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

United States
Houston
54
Moderate
Egypt
Cairo
57
Moderate
MetricHoustonCairo
AQI5457
PM2.57.2 μg/m³16.2 μg/m³
PM107.9 μg/m³25.2 μg/m³
Ozone34 ppb144 ppb
NO216.6 ppb14 ppb

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