Protecting Oregon's Environment
Oregon State Seal
Oregon Department of Environmental Quality

Air Quality

 

Sign up for Air Pollution Advisories by e-mail

Air Quality Index logo

See current air quality in your city


Air Quality Home
  Air Pollution Advisories
Wildfire Air Quality Rating (WAQR)
Air Quality Forecasts
Past AQI's
Hourly Data
Frequently Asked Questions
Compare Oregon's Air
Air Quality Monitoring
EPA Index Range and Health Category Scale


Air Quality Index

The Air Quality Index (AQI) is a color-coded tool which shows air pollution levels. Green is good, yellow is moderate, orange is unhealthy for sensitive groups, and red is unhealthy for all groups. DEQ issues Air Pollution Advisories when we forecast air pollution levels above the yellow, or moderate, AQI category and remain there for more than 72 hours.

The AQI for particulate matter (both PM2.5 and PM10) is based on the average of the previous 24 hours of pollution levels. Particle pollution is often highest during the coldest times of the day, typically in the evening and early morning.

Air Quality Index calculated for:

      Wednesday, February 08, 2012 

Data from: 

      10:00:00 AM   to   11:00:00 AM    Pacific Standard Time (PST)
Monitoring
Area
Current
Hourly
AQI
Ozone Carbon Monoxide PM-2.5 PM-10
8-Hour 8-Hour 24-Hour 24-Hour
AQI ppm AQI ppm AQI µg/m3 AQI µg/m3
Albany 46
Good
PM2.5
****4614.22325.0
Applegate Valley 26
Good
PM2.5
****268.01718.0
Baker City
(Monitor Currently Offline)

********
Beaverton 22
Good
PM2.5
****226.81213.0
Bend 36
Good
PM2.5
****3611.22426.0
Burns 61
Moderate
PM2.5
****6119.42931.0
Cave Junction 41
Good
PM2.5
****4112.62022.0
Corvallis 40
Good
PM2.5
****4012.51921.0
Enterprise 51
Moderate
PM2.5
****5115.62426.0
Grants Pass 67
Moderate
PM2.5
****6722.23133.0
Hillsboro 32
Good
PM2.5
****329.81516.0
John Day 58
Moderate
PM2.5
****5818.22931.0
Klamath Falls 37
Good
PM2.5
****3711.52123.0
La Grande 57
Moderate
PM2.5
****5717.82527.0
Lakeview 9
Good
PM10
****92.7910.0
Medford 28
Good
PM2.5
****288.61718.0
Pendleton 63
Moderate
PM2.5
****6320.42527.0
Portland 24
Good
PM2.5
150.018**247.41314.0
Prineville 76
Moderate
PM2.5
****7625.74751.0
Roseburg 46
Good
PM2.5
****4614.42022.0
Salem 43
Good
PM2.5
****4313.42022.0
Shady Cove 27
Good
PM2.5
****278.31718.0
Sisters 27
Good
PM2.5
****278.42022.0
Sweet Home 43
Good
PM2.5
****4313.42426.0
The Dalles 67
Moderate
PM2.5
****6722.13235.0
To access monitoring Station AQI's for the Metropolitan Areas click the city name link under "Monitoring Area".

Additional Oregon AQI's:


The U. S. Environmental Protection Agency's scale for rating air quality

Air Quality Rating Air Quality Index (AQI) PM2.5 24-hour Average (micrograms/m3) 8-hour Ozone Concentration (ppm) Carbon Monoxide
 8-hour average (ppm)
GOOD

0-50

0.0-15.4
 

0.000-0.059

0.0-4.4
MODERATE

51-100

15.5-35.4

0.060-0.075

4.5-9.4
UNHEALTHY for Sensitive
Groups

101-150

35.5-55.4

0.076-0.095

9.5-12.4

UNHEALTHY

151-200

55.5-140.4

0.096-0.115

12.5-15.4
VERY UNHEALTHY

201-300

140.5-210.4

0.116-0.374

15.5-30.4
HAZARDOUS

>300

>210.5

>0.375

>30.4

[print version]

To hear a recorded message with this same Air Quality Index information call 503-229-6397.

For more information about Air Quality call 503-229-5359 or email.

For more information about DEQ's Laboratory and Environmental Assessment Division please email LEAD.

Oregon Department of Environmental Quality
Headquarters: 811 SW Sixth Ave., Portland, OR 97204-1390
Phone: 503-229-5696 or toll free in Oregon 1-800-452-4011
Oregon Telecommunications Relay Service: 1-800-735-2900  FAX: 503-229-6124

The Oregon Department of Environmental Quality is a regulatory agency authorized to protect Oregon's environment by
the State of Oregon and the Environmental Protection Agency.

DEQ Web site privacy notice