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Hypoxic dead zones found in urban streams, not just at the coast: Erosion reshapes urban stream beds to become a series of hypoxia-prone pools
- December 17, 2018
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A new study finds that hypoxic dead zones occur in nutrient-laden urban streams, not just in coastal waters. The research shows that intense storm flows can erode some stream channels to become a series of pools that trap nutrient-laden runoff. The elevated nutrient levels in the water spur greater consumption of dissolved oxygen by bacteria, causing the pools to become hypoxic until the next storm flushes them out.