West Union, Ohio Air Quality
West Union has a median AQI of 39, earning an air quality grade of A — excellent air quality that ranks better than 56% of US cities. Air quality has been trending worse over the past decade, a concern for local residents and health officials. Particulate matter (PM2.5) is the primary concern, often linked to vehicle traffic, industrial activity, and wildfire smoke. In 2020, West Union recorded 215 good air quality days (75% of monitored days).
Population: 2,899 • County: Adams
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Quick Facts
| Current AQI | 15 — Good |
| Air Quality Grade | A |
| Median AQI (2020) | 39 |
| vs. U.S. Cities | Better than 56% |
| Primary Pollutant | PM2.5 |
| Unhealthy Days/Year | 0 |
| 10-Year Trend | ↓ Worsening |
| Data Source | EPA AirNow |
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 30 Days
Current Pollutant Levels
Real-time data from EPA AirNow
AQI Trend (10 Years)
Air Quality Days by Year
2020 Air Quality Summary
Primary Pollutant Days (2020)
Days when each pollutant was the primary driver of AQI. Learn about pollutants →
Frequently Asked Questions About West Union Air Quality
What is the air quality in West Union today?
The current AQI in West Union is 15, which is rated "Good". Air quality is satisfactory, and air pollution poses little or no risk.
Is air quality in West Union getting better or worse?
Air quality in West Union has been worsening in recent years. The median AQI rose from 31 in 2016 to 39 in 2020.
What is the most common air pollutant in West Union?
PM2.5 is the primary air pollutant in West Union, responsible for the most air quality-impacted days in 2020. Particulate matter can originate from vehicle exhaust, wildfires, and industrial emissions.
How many unhealthy air days does West Union have per year?
In 2020, West Union had 0 days when air quality was unhealthy or unhealthy for sensitive groups (AQI above 100). There were 215 good days and 72 moderate days out of 287 days monitored.
What air quality grade does West Union receive?
West Union receives an air quality grade of A, placing it better than 56% of US cities. This grade is based on a median AQI of 39 for 2020, derived from EPA monitoring data.
Air Quality Grade
Better than 56% of US cities
Nearby Cities
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National Rankings
See how West Union compares to every other US city by air quality.
Best Air Quality Cities →All city rankingsRecommended Air Purifiers for West Union
Based on your area's air quality (median AQI: 39), we recommend these air purifiers to help protect your health indoors.
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Molekule Air Pro
Commercial-grade with patented PECO technology for destroying pollutants.
Blueair Blue Pure 211+
High performance for large rooms with simple operation.
Dyson Pure Cool TP04
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