Mount Hermon, Virginia Air Quality
Mount Hermon has a median AQI of 3, earning an air quality grade of A+ — excellent air quality that ranks better than 100% of US cities. Air quality has remained relatively stable over the past decade. NO₂ is the primary pollutant driving air quality conditions. In 2022, Mount Hermon recorded 363 good air quality days (100% of monitored days).
Population: 4,155 • County: Pittsylvania
Current AQI
Quick Facts
| Current AQI | 24 — Good |
| Air Quality Grade | A+ |
| Median AQI (2022) | 3 |
| vs. U.S. Cities | Better than 100% |
| Primary Pollutant | NO₂ |
| Unhealthy Days/Year | 0 |
| 10-Year Trend | → Stable |
| Data Source | EPA AQS (historical) · AirNow (live) |
Health Recommendation
Air quality is satisfactory, and air pollution poses little or no risk.
It's a great day to be active outside!
5-Day AQI Forecast
Last 90 Days
Current Pollutant Levels
Real-time data from EPA AirNow
Local Air Quality Context
Air quality data for Mount Hermon is sourced from the MENDNHAL monitoring area, located approximately 44 miles from city center. This EPA-certified station continuously tracks NO₂, the primary pollutant tracked in this area.
Mount Hermon has relatively consistent air quality throughout the year without a strong seasonal peak. Air quality is primarily influenced by local traffic, industrial activity, and regional weather patterns rather than a single seasonal driver.
AQI Trend (10 Years)
Air Quality Days by Year
Mount Hermon Median AQI by Year
Annual EPA air quality data for Mount Hermon — median AQI, day-category breakdown, and primary pollutant per year.
| Year | Median AQI | Good Days | Unhealthy Days | Max AQI | Primary Pollutant |
|---|---|---|---|---|---|
| 2022 | 3 | 363 | — | 28 | NO₂ |
| 2021 | 3 | 335 | — | 21 | NO₂ |
Source: EPA Air Quality System (AQS) annual summaries. "Unhealthy Days" includes Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, and Hazardous categories.
2022 Air Quality Summary
Primary Pollutant Days (2022)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Mount Hermon Air Quality
What is the air quality in Mount Hermon today?
The current AQI in Mount Hermon is 24, rated "Good". Air quality is good — outdoor activity is safe for everyone today. Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in Mount Hermon getting better or worse?
Air quality in Mount Hermon has been stable. The median AQI has remained stable at around 3 over the past decade.
What is the most common air pollutant in Mount Hermon?
NO₂ is the primary air pollutant in Mount Hermon, responsible for 363 days (100% of monitored days) in 2022. NO₂ is regulated by the EPA and monitored continuously across the area.
How many unhealthy air days does Mount Hermon have per year?
In 2022, Mount Hermon recorded 100% good air quality days (363 days) out of 363 monitored days. There were 0 Unhealthy for Sensitive Groups days and 0 Unhealthy days (AQI above 100). The highest single-day AQI recorded was 28.
What air quality grade does Mount Hermon receive?
Mount Hermon receives an air quality grade of A+, placing it better than 100% of US cities. This is based on a median AQI of 3 in 2022, with 363 good air quality days. The EPA monitors air quality in this area continuously using certified monitoring stations.
Air Quality Grade
Better than 100% of US cities
Nearby Cities
Get AQI Alerts
Receive notifications when air quality changes in Mount Hermon
National Rankings
See how Mount Hermon compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Mount Hermon
Nitrogen dioxide drives Mount Hermon's air quality days, usually from vehicle traffic and industrial combustion. Look for units with substantial activated carbon layers alongside HEPA filtration.
Blueair Blue Pure 211+
High performance for large rooms with simple operation.
- ✓Good room size match
- ✓Recommended for your air quality
- ✓High performance
We may earn a commission from purchases
Other Great Options
Honeywell HPA300
Powerful workhorse for large rooms. Built to last.
Dyson Pure Cool TP04
Premium all-in-one air purifier and fan with advanced features.
Molekule Air Pro
Commercial-grade with patented PECO technology for destroying pollutants.
Not sure which air purifier is right for you?
Learn more about different types of air purifiers and how to choose the best one for your needs.
Read our complete buying guide →