Frederick County Air Quality Index & Realtime Air Pollution
Primary Air Pollutants Frederick County (Maryland)
Hourly forecast Frederick County (Maryland)
Health Recommendations for Frederick County Residents
Based on current air quality: Good · AQI 35
UV Index
1.95
Low
Safe to be outside. Minimal UV risk.
Wind
4.1 km/h
Calm or light air — barely noticeable.
Historical AQI Data Frederick County (Maryland)
United States Major Cities AQI Overview
New York
43
Temp.
28.1°C
Hum.
75%
Los Angeles
60
Temp.
32.8°C
Hum.
33%
Chicago
22
Temp.
28.7°C
Hum.
48%
Houston
71
Temp.
36.9°C
Hum.
35%
Phoenix
58
Temp.
37.3°C
Hum.
32%
San Francisco
54
Temp.
29.5°C
Hum.
38%
Seattle
73
Temp.
27.1°C
Hum.
54%
Denver
16
Temp.
33.8°C
Hum.
26%
Philadelphia
35
Temp.
22.9°C
Hum.
65%
San Antonio
46
Temp.
37.2°C
Hum.
35%
Dallas
61
Temp.
41°C
Hum.
25%
Atlanta
27
Temp.
33°C
Hum.
46%
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 | Spokane, Washington | 190 | Unhealthy | 26x above Standard | |
| 2 | Everett, Washington | 130 | Poor | 9x above Standard | |
| 3 | Tacoma, Washington | 123 | Poor | 9x above Standard | |
| 4 | Hillsboro, Oregon | 86 | Moderate | 6x above Standard | |
| 5 | Portland, Oregon | 86 | Moderate | 6x above Standard | |
| 6 | Vancouver, Washington | 86 | Moderate | 6x above Standard | |
| 7 | Seattle, Washington | 84 | Moderate | 6x above Standard | |
| 8 | Odessa, Texas | 81 | Moderate | 5x above Standard | |
| 9 | Baton Rouge, Louisiana | 77 | Moderate | 5x above Standard | |
| 10 | Bismarck, North Dakota | 74 | Moderate | 5x above Standard |
Health Advice For People Living in Frederick County
per day
Breathing the air in this location is equivalent to smoking 0.4 cigarettes a day.
Prevent Health Problems: Understand Your Risks
Frederick County · Current air quality: Good · AQI 35
Headaches
Risk of Headaches symptoms is Low when AQI of Frederick County is Good (0-50).
Symptoms often include: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.
- Prefer indoor, filtered air when the AQI is elevated.
- Drink water and pause from screen time or strong light if you are migraine-prone.
- If you Consider using prescribed migraine meds, Store them accessible.
- Avoid do intense outdoor exercise during poor AQI periods.
- Try not to ignore worsening issues 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.
Frederick County's Nearby Cities AQI
Explore nearby city AQI pages around Frederick County.
Air Quality FAQs at Frederick County, Maryland
Frequently Asked Questions
About Air Quality
The current real-time AQI (US) level in Frederick County, Maryland is 35 (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 Frederick County, Maryland 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.