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Department of Ecology Press Release - December 19, 2005
05-302
OLYMPIA - Improved air circulation coupled with decreased pollutant levels has allowed the state Department of Ecology (Ecology) to lift its statewide air quality advisory, effective immediately. "With the onset of rain, the weather conditions that caused the increased pollution levels for the past 10 days have changed," said Ecology meteorologist Dick Stender. "The pollution levels have dropped and are expected to remain in the 'good' to 'moderate' category for the foreseeable future." Ecology issued a statewide air advisory Dec. 9 because stagnant air conditions were trapping smoke particles in low-lying areas.
Although weather conditions are improving, Ecology officials say stagnant air is an ever-present danger during wintertime.
Historically, stagnant air occurs in the Northwest from about mid-November to mid-March when warm high-pressure ridges stall over the area, trapping a layer of cold air beneath a layer of warm air.
To find out whether it's okay to use a wood stove or fireplace, call a local clean-air agency. A good rule is that if it is windy or rainy outside, it's probably okay to burn. If the air is very foggy or still, air quality may be poor and burning is not a good idea.
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Contact: Glenn Kuper, Public Information Manager, 360-791-3177
Copyright © Washington State Department of Ecology. See http://www.ecy.wa.gov/copyright.html.
