Scientists with the U.S. Geological Survey--lots of scientists--have been studying how contaminants work their way through the food web of the Columbia River. We're talking PCBs, flame retardants, pesticides, toulene--nasty chemicals known as endocrine disrupting compounds. Using a foodweb model, the researchers tested insects, fish that eat the insects, osprey that eat the fish and invertebrates that live in the river's sediments and dine on the leftovers.
In the Pacific Northwest, the environment is personal - it's where we live, work and play. Oregon Public Broadcasting's Ecotrope will bring you news and insight on the region’s environmental issues. Site curator Cassandra Profita is an award-winning reporter with degrees in journalism and environmental studies.