Tagged: Air Quality
OPB |Sept. 04, 2014 12:15 p.m.
THURSDAY: We'll talk to the author of a new Portland State University study that looks at air quality and tree cover in different Portland neighborhoods.
Aug. 27, 2013 12:06 p.m.
A study of the most toxic polluters in the U.S. ranked Portland-based Precision Castparts No. 1.
May 29, 2012 9:30 a.m.
A new study by Oregon's Department of Environmental Quality suggests that air quality is decreasing in the state. What are the causes?
April 14, 2009 9 a.m.
Should field burning be banned in Oregon?
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