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Wildfire PM 2.5 concentrations - 7 Day History

New values will be added hourly at approximately 15 minutes past the hour.

This is "Raw data" and has not yet been validated.

Note: Forest fire PM2.5 estimates are based on data collected during the 2002 Oregon forest fires and are typically lower than the PM2.5 estimates made during non-forest fire conditions. For forest fire smoke, the Wildfire Air Quality Health Rating should supersede the non forest fire PM2.5 estimate.

Hourly Average Concentrations For:     Sunday, April 20, 2014

Date/Time shown in table corresponds to the beginning of the measured hourly interval, e.g., a displayed time of 9 AM covers the period of 9 AM to 10 AM. Time is referenced as Pacific Standard Time (PST). Add one hour for Pacific Daylight Time (PDT).
StationDate/Time (PST)estimated PM 2.5 (ug/m3)
21886 ACS4/20/2014 1:00:00 AM10.2
21886 ACS4/20/2014 12:00:00 AM11.5


 Wildfire area near Warms Springs, Oregon
Wildfire burned stand of Ponderosa Pine

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

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.

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