Gaithersburg, MD (May , 2012) –Environmental Resources Planning compiled information from nineteen litter surveys conducted in the U.S. and Canada from 1994 to 2009, including a 2008 national survey of 240 sites. The firm reviewed surveys that used statistically valid quantification and charcterization methodolgies.
The report finds that polystyrene foam food service products "consistently constitute a small portion of litter (1.5 percent). Evaluating just the surveys conducted since 2000 yields an even lower median value of 1.1 percent."
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