Houston Air Quality Index & Realtime Air Pollution
Primary Air Pollutants Houston (Texas)
Hourly forecast Houston (Texas)
Health Recommendations for Houston Residents
Based on current air quality: Good · AQI 44
UV Index
0
Low
Safe to be outside. Minimal UV risk.
Wind
11.4 km/h
Light breeze — leaves rustling gently.
Historical AQI Data Houston (Texas)
United States Major Cities AQI Overview
New York
65
Temp.
20°C
Hum.
36%
Los Angeles
65
Temp.
20.2°C
Hum.
71%
Chicago
63
Temp.
19°C
Hum.
59%
Houston
45
Temp.
22.7°C
Hum.
94%
Phoenix
64
Temp.
38°C
Hum.
8%
San Francisco
53
Temp.
18°C
Hum.
62%
Seattle
51
Temp.
18°C
Hum.
58%
Denver
69
Temp.
20.5°C
Hum.
34%
Philadelphia
68
Temp.
22.1°C
Hum.
37%
San Antonio
43
Temp.
23.9°C
Hum.
83%
Dallas
98
Temp.
28.7°C
Hum.
64%
Atlanta
53
Temp.
21.1°C
Hum.
49%
Most Polluted Cities by AQI United States
Explore live air quality data for the most polluted cities in the country.
| Rank | City | AQI | AQI Status | Standard Value | Notify |
|---|---|---|---|---|---|
| 1 | Fort Worth, Texas | 119 | Poor | 3x above Standard | |
| 2 | Dallas, Texas | 93 | Moderate | 2x above Standard | |
| 3 | Denton, Texas | 81 | Moderate | 2x above Standard | |
| 4 | Pittsburgh, Pennsylvania | 79 | Moderate | 1x above Standard | |
| 5 | Cincinnati, Ohio | 75 | Moderate | 1x above Standard | |
| 6 | Riverside, California | 75 | Moderate | 3x above Standard | |
| 7 | San Bernardino, California | 75 | Moderate | 3x above Standard | |
| 8 | McKinney, Texas | 73 | Moderate | 2x above Standard | |
| 9 | Charlotte, North Carolina | 72 | Moderate | 1x above Standard | |
| 10 | Knoxville, Tennessee | 67 | Moderate | 1x above Standard |
Health Advice For People Living in Houston
per day
Breathing the air in this location is equivalent to smoking 0.5 cigarettes a day.
Prevent Health Problems: Understand Your Risks
Houston · Current air quality: Good · AQI 44
Headaches
Risk of Headaches symptoms is Low when AQI of Houston is Good (0-50).
Signs to look out for include: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.
- Opt for indoor, air with filtration when the AQI is poor.
- Increase fluids and rest from digital screens or intense light if you are migraine-prone.
- If you Use prescribed migraine meds, Keep them accessible.
- Don’t do intense outdoor exercise during elevated AQI periods.
- Do not ignore worsening signs that feel unusual for you.
Disclaimer: The health risks mentioned above are precautionary recommendations based on current AQI levels. While you may not experience immediate effects, prolonged exposure to air pollution can lead to these health issues over time. This is not medical advice. Please consult a clinician if you experience severe, unusual, or worsening symptoms.
Air Quality FAQs at Houston, Texas
Frequently Asked Questions
About Air Quality
The current real-time AQI (US) level in Houston, Texas is 44 (Good). This was last updated recently.
The best AQI (US) level was generally lower during the early afternoon in the last 24 hours.
The worst AQI (US) level typically peaks during early morning or late evening hours due to temperature inversion.
The AQI (US) levels in Houston, Texas have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.
Current AQI (US) levels are good for everyone. It's advised to adjust your outdoor activities based on personal sensitivity.