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Study Finds Pollution In Colorado River At Grand Canyon

Colorado River
Grand Canyon National Park
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handout | agency
Colorado River in the Grand Canyon.

Despite its remote location, the Colorado River at the bottom of the Grand Canyon is dealing with pollution. A new study from the United States Geological Survey (USGS) found high levels of mercury and selenium in wildlife living there.

David Walters, who is an ecologist with USGS, was the lead author of the study and discussed its impact.

People have known about mercury in the Colorado River system for about two decades, but environmentalists are still concerned with what the report found.

We spoke with Roger Clark, program director for the Grand Canyon Trust, who is concerned with the findings.

Mark Brodie is a co-host of The Show, KJZZ’s locally produced news magazine. Since starting at KJZZ in 2002, Brodie has been a host, reporter and producer, including several years covering the Arizona Legislature, based at the Capitol.