Sour Streams in Appalachia: Mapping Nature’s Buffer Against Sulfur Deposition
Sulfur emissions are regulated by the Environmental Protection Agency, but sulfuric acid that has
leached into soil and streams can linger in the environment and harm vegetation and aquatic life. Some
watersheds are better able to buffer streams against acidification than others; scientists learned why in
southern Appalachia.
Credits: Science Findings, USDA Forest Service Pacific Northwest Research Station july 2015
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