Calhoun Falls, South Carolina Air Quality
Calhoun Falls has a median AQI of 25, earning an air quality grade of A+ — excellent air quality that ranks better than 95% of US cities. Air quality has remained relatively stable over the past decade. Ground-level ozone is the primary concern, typically peaking on warm sunny days due to vehicle and industrial emissions. In 2017, Calhoun Falls recorded 9 good air quality days (100% of monitored days).
Population: 2,049 • County: Abbeville
Current AQI
Quick Facts
| Current AQI | 29 — Good |
| Air Quality Grade | A+ |
| Median AQI (2017) | 25 |
| vs. U.S. Cities | Better than 95% |
| Primary Pollutant | Ozone |
| 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 Calhoun Falls is sourced from the Athens monitoring area, located approximately 45 miles from city center. This EPA-certified station continuously tracks ground-level ozone, the primary driver of air quality alerts in this area.
Calhoun Falls 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
Calhoun Falls Median AQI by Year
Annual EPA air quality data for Calhoun Falls — median AQI, day-category breakdown, and primary pollutant per year.
| Year | Median AQI | Good Days | Unhealthy Days | Max AQI | Primary Pollutant |
|---|---|---|---|---|---|
| 2017 | 25 | 9 | — | 33 | Ozone |
| 2016 | 39 | 285 | — | 87 | Ozone |
Source: EPA Air Quality System (AQS) annual summaries. "Unhealthy Days" includes Unhealthy for Sensitive Groups, Unhealthy, Very Unhealthy, and Hazardous categories.
2017 Air Quality Summary
Primary Pollutant Days (2017)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About Calhoun Falls Air Quality
What is the air quality in Calhoun Falls today?
The current AQI in Calhoun Falls is 29, 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 Calhoun Falls getting better or worse?
Air quality in Calhoun Falls has been stable. The median AQI has dropped 14 points (from 39 in 2016 to 25 in 2017).
What is the most common air pollutant in Calhoun Falls?
Ozone is the primary air pollutant in Calhoun Falls, responsible for 9 days (100% of monitored days) in 2017. Ground-level ozone forms when sunlight reacts with emissions from vehicles and industry, typically peaking on hot summer afternoons.
How many unhealthy air days does Calhoun Falls have per year?
In 2017, Calhoun Falls recorded 100% good air quality days (9 days) out of 9 monitored days. There were 0 Unhealthy for Sensitive Groups days and 0 Unhealthy days (AQI above 100). The highest single-day AQI recorded was 33.
What air quality grade does Calhoun Falls receive?
Calhoun Falls receives an air quality grade of A+, placing it better than 95% of US cities. This is based on a median AQI of 25 in 2017, with 9 good air quality days. The EPA monitors air quality in this area continuously using certified monitoring stations.
Air Quality Grade
Better than 95% of US cities
Nearby Cities
Get AQI Alerts
Receive notifications when air quality changes in Calhoun Falls
National Rankings
See how Calhoun Falls compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for Calhoun Falls
Ozone is Calhoun Falls's primary pollutant. Standard HEPA filters don't capture ozone molecules — you need activated carbon or PECO technology to chemically break them down. We highlight those units here.
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
Molekule Air Pro
Commercial-grade with patented PECO technology for destroying pollutants.
Honeywell HPA300
Powerful workhorse for large rooms. Built to last.
RabbitAir MinusA2
Stylish wall-mountable design with customizable artwork panels.
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 →