Oregon Field Guide

Columbia River Toxins

Clip: Season 24 Episode 2409 | 8m 18s

The mid-Columbia River, above Bonneville Dam, has never been tested extensively for contamination until now. Oregon’s Department of Environmental Quality conducted one of its largest surveys and found the middle river shares many of the same contaminants as the lower river.

Aired: 01/31/13

Rating: TV-G

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