Bay Journal

Topics: Pollution

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About Pollution

Nutrient pollution, the nitrogen and phosphorus that originates from farms, wastewater treatment plants, stormwater runoff and air pollution, is a major source of pollution to the Chesapeake. In the Bay, they spur growth of algae blooms which block sunlight needed by important underwater grass beds. When the algae dies, they are decomposed in a process that depletes the water of oxygen needed by other species.

Sediment eroded from the land and streambanks degrades stream health and reduces water clarity. Toxins and other chemical contaminants also pose a direct threat to fish throughout the Bay and its watershed.

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