dirty polluted water eutrophication |
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| navigate by keyword : dirty polluted water eutrophication pollution algae aquatic system artificial biomass bloom blooming global issue negative nitrates nutrients oxygen environmental impact contaminated concept smell stink toxic warning waste wastes environment eutrophia fertilizers phosphates reduction sewage smelly stinks substances ecology ecosystem effect damage contamination danger marine problem safety green hypertrophication hypoxia |
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| Dirty, polluted water. Eutrophication of water. |
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