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Watershed- and Regional Scale Contamination

USGS scientists sampling Cynder Pool geyser in the Norris Basin of Yellowstone National Park.
USGS scientists sampling Cynder Pool geyser in the Norris Basin of Yellowstone National Park, Wyoming, for dissolved mercury. Norris Basin is historically known for high sulfur and mercury levels.
-- from the Effect of Mercury on Aquatic Ecosystems Investigation


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