algae bloom in polluted water

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Photo credit: © filmfoto / Alamy / Afripics
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Keywords: -fertilization, alga, algae, background, bavaria, concepts, condition, day, dirtiness, dirty, dirtying, environment, fertilization, fouling, kochelsee, lake, lakeside, natural, nature, nitrate, outdoors, plant, pollution, reservoir, river, soiling, spring, springtime, sulfate, summer, water, waterfront