Columbia air quality · Maryland, United States
This is what breathable city air is supposed to feel like
US AQI 38 (Good) in Columbia, from 1 AirNow monitoring station. Main pollutant: PM2.5.
Updated
Pollutants in Columbia
- PM2.538AQI
- NO₂20AQI
- Ozone15AQI
US values are per-pollutant AQI from the highest-reading monitor near Columbia (HU-Beltsville).
Is it safe outside in Columbia right now?
Air quality is satisfactory and poses little or no risk.
Walking and commuting
Go aheadEnjoy it.
Running and jogging
Go aheadA great time to run outdoors.
Cycling
Go aheadRide freely.
Children playing outside
Go aheadNo limits.
Older adults and heart or lung conditions
Go aheadNo limits.
Open windows
Go aheadAir out your home.
Mask outdoors
Not neededNot needed.
Air purifier indoors
Not neededNot needed.
Based on the US EPA Air Quality Guide, applied to the current US AQI category. If you have symptoms, follow your doctor's advice.
What US AQI 0–50 means for your health →
Columbia air quality history
Daily average, 36 days- 33average daily US AQI over 36 days
- 60worst day, 2 October
- 20cleanest day, 29 September
- 0days at Unhealthy or worse
The last 7 days averaged 34, about the same as the week before (33). 33 of the last 36 days were Good.
Weather in Columbia
No active National Weather Service alerts for Columbia.
| Day | Forecast | High | Low | Rain |
|---|---|---|---|---|
| Mon 19 | Sunny | 64°F | 46°F | 0% |
| Tue 20 | Sunny | 66°F | 43°F | 0% |
| Wed 21 | Sunny | 64°F | 41°F | 1% |
| Thu 22 | Sunny | 66°F | 45°F | 0% |
| Fri 23 | Sunny | 63°F | 39°F | 0% |
| Sat 24 | Sunny | 61°F | 41°F | 0% |
| Sun 25 | Sunny | 64°F | 45°F | 0% |
National Weather Service forecast. All US weather alerts →
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Columbia air quality: common questions
What is the AQI in Columbia right now?
The US AQI in Columbia is 38 (Good). The main pollutant is PM2.5.
Is it safe to go outside in Columbia today?
A great time to be outside. Air quality is satisfactory and poses little or no risk. For runners: A great time to run outdoors.
How has air quality in Columbia been recently?
Over the last 36 days with data, Columbia averaged US AQI 33. The worst day was 2 October at 60; the cleanest was 29 September at 20. 0 days were at Unhealthy or worse.
Where does Columbia's air quality data come from?
From US EPA AirNow, using 1 monitoring station in and around the city. Good Air does not estimate or adjust these readings.
Source: US EPA AirNow. Readings are published by the monitoring agency and may be revised.