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Case Study: Mercury Is Threatening Grand Canyon

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Mercury Is Threatening Grand Canyon

High levels of mercury and selenium have been discovered in the Grand Canyon 's fish, algae and bugs, according to NZA Today.

The chemical levels were discovered in a study by the U.S. Geological Survey (USGS), and were published in a report in the Environmental Toxicity and Chemistry journal.

HOW THE MERCURY IS GETTING THERE

Researchers have said that the mercury, aside from being partially the product of air pollution in the region, originates from Lake Powell 's algae, which eventually comes to the Grand Canyon carrying the neurotoxin with it, according to Discovery News. The amount of selenium and mercury found in the Grand Canyon 's food webs are far beyond levels that indicate a threat to the

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