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Air quality · Texas

Houston Air Quality (AQI) Now

31 Fair
European Air Quality Index
PM2.5
8.5µg/m³WHO limit 15
PM10
8.7µg/m³WHO limit 45
NO₂
3.8µg/m³
O₃
81µg/m³
Desert dust
0µg/m³
UV index
0.0
US AQI
54

Updated: · Source: Copernicus CAMS · Open-Meteo

Air quality in Houston is fair right now: European Air Quality Index 31. Fine particulate matter (PM2.5) is 8.5 µg/m³, below the WHO guideline. Fine for outdoor activities; very sensitive people may reduce prolonged strenuous exercise. Pollution is expected to peak around 15:00 over the next 48 hours (index 42, moderate).

Houston 48-hour air quality forecast

06:00: 1706:0007:00: 1708:00: 1709:00: 1710:00: 1811:00: 2012:00: 2312:0013:00: 2614:00: 2915:00: 3216:00: 3417:00: 3318:00: 3018:0019:00: 2820:00: 2821:00: 2822:00: 2723:00: 2600:00: 2500:0001:00: 2502:00: 2403:00: 2304:00: 2205:00: 2206:00: 2206:0007:00: 2108:00: 2209:00: 2210:00: 2211:00: 2712:00: 3312:0013:00: 3714:00: 4015:00: 4216:00: 4117:00: 3718:00: 3218:0019:00: 2920:00: 3421:00: 3622:00: 4123:00: 42

Air quality near Houston

Cleanest to most polluted.

Frequently asked questions

Is Houston polluted today?
Air quality in Houston is fair right now: European Air Quality Index 31. Fine for outdoor activities; very sensitive people may reduce prolonged strenuous exercise.
Is it safe to exercise outdoors in Houston today?
Yes, air quality is fair right now; fine for outdoor exercise.
How is the air quality index calculated?
The European Air Quality Index is set by the worst of PM2.5, PM10, nitrogen dioxide, ozone and sulphur dioxide: 0–20 good, 20–40 fair, 40–60 moderate, 60–80 poor, 80–100 very poor, above 100 extremely poor.

Values are Copernicus Atmosphere Monitoring Service (CAMS) model forecasts and may differ from local monitoring stations.

Houston air quality: details

Pollutants and recent days

Nitrogen dioxide (NO₂) is 3.8 µg/m³ and ozone (O₃) 81 µg/m³; WHO guideline values are 25 (24 h) and 100 µg/m³ (8 h).