Columbus: Air Pollution Today — AQI Index, PM2.5/PM10, Smog Alerts and Forecast

The latest data Last 7 days
Latest air quality data: Columbus
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Pollution and air quality forecast for Columbus. Today is Thursday, August 27, 2026. The following air pollution values have been recorded for Columbus:
  1. particulate matter (PM2.5) dust - 5 (Good)
  2. particulate matter (PM10) suspended dust - 5 (Good)
  3. ozone (O3) - 75 (Moderate)
  4. nitrogen dioxide (NO2) - 11 (Good)
  5. sulfur dioxide (SO2) - 2 (Good)
  6. carbon monoxide (CO) - 227 (Good)
Real-time Air Quality Index (AQI) for Columbus, Wednesday, August 26, 2026: 2.

air quality index: 1
AQI 2 Moderate

What is the air quality in Columbus today? Is the air polluted in Columbus?. Is there smog?

Today (Wednesday, August 26, 2026) air quality is moderate in Columbus. Some pollutants in Columbus may slightly affect very few hypersensitive individuals. Air pollutants in Columbus may cause minor breathing discomfort to sensitive people.


What is the current level of PM2.5 in Columbus? (particulate matter (PM2.5) dust)
Today's PM2.5 level is: 5 (Good) For comparison, the highest level of PM2.5 in Columbus in the last 7 days was: 9 (Tuesday, August 25, 2026) and the lowest: 4 (Sunday, August 23, 2026).

What is the level of PM10 today in Columbus? (particulate matter (PM10) suspended dust)
The current level of particulate matter PM10 in Columbus is: 5 (Good)

How is the O3 level today in Columbus? (ozone (O3))
75 (Moderate)

How high is the level of NO2? (nitrogen dioxide (NO2))
11 (Good)

What is the level of SO2 pollution? (sulfur dioxide (SO2))
2 (Good)

How high is the CO level? (carbon monoxide (CO))
227 (Good)



Current data Wednesday, August 26, 2026 at 9:00 PM

PM2,5 5 (Good)

PM10 5 (Good)

O3 75 (Moderate)

NO2 11 (Good)

SO2 2 (Good)

CO 227 (Good)

Data on air pollution from recent days in Columbus

index 2026-08-26 2026-08-25 2026-08-24 2026-08-23 2026-08-22 2026-08-21 2026-08-20 2026-08-19
pm25 7
Good		 9
Good		 5
Good		 4
Good		 7
Good		 8
Good		 5
Good		 7
Good
pm10 7
Good		 9
Good		 5
Good		 5
Good		 7
Good		 8
Good		 5
Good		 7
Good
o3 72
Moderate		 55
Good		 51
Good		 57
Good		 64
Good		 71
Moderate		 73
Moderate		 63
Good
no2 16
Good		 16
Good		 8
Good		 5
Good		 12
Good		 8
Good		 6
Good		 14
Good
so2 2
Good		 1
Good		 1
Good		 1
Good		 1
Good		 2
Good		 1
Good		 2
Good
co 221
Good		 211
Good		 150
Good		 143
Good		 208
Good		 233
Good		 203
Good		 202
Good
data source »

Columbus

Wednesday, August 26, 2026 at 9:00 PM

PM2,5 5.1 (Good)

particulate matter (PM2.5) dust

PM10 5.2 (Good)

particulate matter (PM10) suspended dust

O3 75 (Moderate)

ozone (O3)

NO2 11 (Good)

nitrogen dioxide (NO2)

SO2 2 (Good)

sulfur dioxide (SO2)

CO 227 (Good)

carbon monoxide (CO)

Columbus

index 2026-08-19 2026-08-20 2026-08-21 2026-08-22 2026-08-23 2026-08-24 2026-08-25 2026-08-26
pm25 7 4.7 7.7 7.1 4.4 4.7 8.6 7.4
pm10 7.1 4.9 7.8 7.3 4.5 4.9 8.9 7.5
o3 63 73 71 64 57 51 55 72
no2 14 6.3 7.7 12 4.9 8 16 16
so2 1.7 1.2 1.6 1.4 0.66 0.84 1.2 2.3
co 202 203 233 208 143 150 211 221

* Pollution data source: https://openaq.org () The data is licensed under CC-By 4.0

🌦️ Weather · 16-day Forecast — United States

🌦️ WEATHER · 16-DAY FORECASTUnited States🌧️28°RainToday · ↑30° ↓19°💨 7 km/h · 💧 66%Mon24.08🌧️30°19°Tue25.08🌤️32°21°Wed26.08🌧️33°23°Thu27.08☁️36°20°Fri28.08☀️38°19°Sat29.08🌤️40°20°Sun30.08🌧️42°21°Mon31.08🌧️42°29°Tue1.09🌧️41°24°Wed2.09☀️41°26°Thu3.09☀️40°28°Fri4.09🌧️39°28°Sat5.09🌧️24°21°Sun6.09🌧️36°20°Mon7.09☀️39°25°Tue8.09🌧️39°23°pollution-alert.com · August 27, 2026

16-day weather forecast for United States: today around 30°C (rain), lows near 19°C. Daily temperature and conditions, updated every day. Strong wind (about 25 km/h) is actively clearing smog and dust away.

☀️ UV Index · 16-day Forecast — United States

☀️ UV INDEX · 16-DAY FORECASTUnited States03681111+7.3UV HIGHtoday, day maxSPF 30-50, hat and sunglasses are a must. Better tostay in the shade 11:00-15:00.⏱ Unprotected fair skin can burn in about 25 min7Wed26.087Thu27.087Fri28.087Sat29.087Sun30.087Mon31.087Tue1.097Wed2.092Thu3.095Fri4.098Sat5.096Sun6.097Mon7.095Tue8.097Wed9.097Thu10.090-2 low3-5 moderate6-7 high8-10 very high11+ extremepollution-alert.com · August 27, 2026

The UV index in United States today is 7.3 (high) — unprotected fair skin can burn in about 25 minutes.

📍 Air quality in nearby cities

Live PM2.5 around Columbus — compare nearby locations.

Frequently asked questions

Is the air safe to breathe in Columbus today?
The current average PM2.5 across Columbus is about 5 µg/m³, rated “Good”. Air quality is good — outdoor activities are fine for everyone.
What is the current PM2.5 level in Columbus?
Right now PM2.5 in Columbus averages about 5 µg/m³ (“Good”). PM2.5 are fine particles small enough to reach the lungs and bloodstream.
Which day last week had the worst air in Columbus?
Over the past week, the highest daily PM2.5 in Columbus was recorded on Tuesday, August 25 (about 9 µg/m³).
What is the UV index in Columbus today?
The UV index in Columbus today is 7.3 (high) — unprotected fair skin can burn in about 25 minutes.
Does today's wind help disperse smog in Columbus?
Strong wind (about 25 km/h) is actively clearing smog and dust away.
How is air quality measured?
Air quality here is based on PM2.5 — the concentration of fine particulate matter in µg/m³. Lower values mean cleaner air. Data is updated daily from Open-Meteo.