AQI

Oregon Air Quality Index & Realtime Air Pollution

Live AQI
159(AQI-US)
Air Quality is
Unhealthy
PM2.5 :71µg/m³
PM10 :78.2µg/m³
Good
Moderate
Poor
Unhealthy
Severe
Hazardous
050100150200300301+
Unhealthy air quality mascot

Primary Air Pollutants Oregon

PM2.571µg/m³
PM2.5
Fine particles
PM1078µg/m³
PM10
Coarse particles
SO₂3µg/m³
SO₂
Sulphur dioxide
CO353µg/m³
CO
Carbon monoxide
NO₂3µg/m³
NO₂
Nitrogen dioxide
O₃168µg/m³
O₃
Ozone

Hourly forecast Oregon

Now29°
Overcast
14:0030°
Overcast
15:0029°
Overcast
16:0029°
Overcast
17:0028°
Overcast
18:0027°
Overcast
19:0027°
Overcast
20:0026°
Overcast
21:0023°
Mostly clear
22:0022°
Mostly clear
23:0021°
Overcast
00:0021°
Overcast
01:0021°
Overcast
02:0021°
Overcast
03:0020°
Mostly clear
04:0020°
Overcast
05:0020°
Overcast
06:0020°
Mostly clear
07:0021°
Overcast
08:0024°
Overcast
09:0026°
Clear sky
10:0028°
Clear sky
11:0029°
Clear sky
12:0030°
Clear sky

Health Recommendations for Oregon Residents

Based on current air quality: Unhealthy · AQI 159

Unhealthy
Air Purifier
Air PurifierTurn On
Car Filter
Car FilterMust
N95 Mask
N95 MaskMust
Stay Indoor
Stay IndoorMust

UV Index

7.8

High

High UV levels — apply sunscreen and limit direct sun exposure.

Wind

11.4 km/h

Light breeze — leaves rustling gently.

AQI Graph

Historical AQI Data Oregon

155
Min. AQIat 7:00 PM on 20th Jul
408
Max. AQIat 8:00 AM on 21st Jul
20-07-2026Time21-07-2026

United States Major Cities AQI Overview


Most Polluted Cities by AQI United States

Last Updated: 21 Jul 2026, 15:01

Health Advice For People Living in Oregon

3.2
Cigarettes
per day
Weekly22.4 Cigarettes
Monthly96 Cigarettes

Breathing the air in this location is equivalent to smoking 3.2 cigarettes a day.

Disclaimer: This cigarette-equivalent estimate is calculated using the average PM2.5 concentration from the past 24 hours, assuming constant exposure throughout that period.
Solutions for Oregon Current AQI (US)
Air Purifier
Air PurifierTurn On
Car Filter
Car FilterMust
N95 Mask
N95 MaskMust
Stay Indoor
Stay IndoorMust
Must turn on the air purifier to enjoy fresh air.Get an Air Purifier

Prevent Health Problems: Understand Your Risks

Oregon · Current air quality: Unhealthy · AQI 159

High Trigger Risk

Headaches

Risk of Headaches symptoms is High when AQI of Oregon is Unhealthy (151-200).

Common signs

These signs are common: Pressure or tightness around the forehead and temples, Sensitivity to light or smell, Fatigue or difficulty concentrating.

Do’s :
  • Choose indoor, clean indoor air when the AQI is elevated.
  • Stay hydrated and take short breaks from devices or harsh light if you are migraine-prone.
  • If you Make use of prescribed migraine meds, Keep close them accessible.
Don’ts :
  • Try not to do intense outdoor exercise during worse AQI periods.
  • Don’t ignore worsening symptoms that feel unusual for you.

Disclaimer: The health risks mentioned above are precautionary recommendations based on current AQI levels. While you may not experience immediate effects, prolonged exposure to air pollution can lead to these health issues over time. This is not medical advice. Please consult a clinician if you experience severe, unusual, or worsening symptoms.

Oregon's Major Cities AQI

State: Oregon
Population: 600,811
Check AQI
State: Oregon
Population: 383,189
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State: Oregon
Population: 347,119
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State: Oregon
Population: 223,734
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State: Oregon
Population: 70,164
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State: Oregon
Population: -
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State: Oregon
Population: -
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Air Quality FAQs at Oregon

The current real-time AQI (US) level in Oregon is 159 (Unhealthy). This was last updated recently.

The best AQI (US) level was generally lower during the early afternoon in the last 24 hours.

The worst AQI (US) level typically peaks during early morning or late evening hours due to temperature inversion.

The AQI (US) levels in Oregon have been fluctuating throughout the last 24 hours depending on traffic and weather conditions.

Current AQI (US) levels are unhealthy for everyone. It's advised to adjust your outdoor activities based on personal sensitivity.