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    This website serves as an information portal about eutrophication—the over-enrichment of water by nutrients such as nitrogen and phosphorus—a leading threat to water quality around the world. Explore our interactive map and learn more.

    Eutrophication and Hypoxia

    Resources

    Topic
    Freshwater
    23 Resources for
    Freshwater
    North America
    Insights
    July 11, 2016

    Guacamole Coasts: Not Just Florida, Not Just Now

    • water pollution
    • mapping
    • pollution
    • wastewater
    • Water Quality
    • water risk
    • water pollution
    • mapping
    • pollution
    • wastewater
    • Water Quality
    • water risk
    Freshwater
    North America
    Insights
    June 10, 2014

    Overcoming Barriers to USDA’s New Conservation Program

    • agriculture
    • water pollution
    • Freshwater
    • Water Quality
    Agriculture is a key source of nutrient pollution in the United States. Photo credit: NOAA, Flickr
    • agriculture
    • water pollution
    • Freshwater
    • Water Quality
    Freshwater
    North America
    Insights
    January 7, 2014

    A New Strategy to Improve Water Quality—One Targeted Watershed at a Time

    • water pollution
    • hypoxia
    • Freshwater
    • Water Quality
    More than 15,000 streams, rivers, and lakes are too polluted with nutrient runoff to support wildlife, be enjoyed recreationally, or serve as a drinking water source. Photo credit: USDA
    • water pollution
    • hypoxia
    • Freshwater
    • Water Quality
    Freshwater
    Data
    September 13, 2013

    Eutrophication & Hypoxia Map Data Set

    • Freshwater
    • pollution
    • water pollution
    • mapping
    • data
    • Freshwater
    • pollution
    • water pollution
    • mapping
    • data
    Freshwater
    North America
    Insights
    April 17, 2013

    Can Nutrient Trading Shrink the Gulf of Mexico's Dead Zone?

    • water pollution
    • hypoxia
    • Freshwater
    Dead fish resulting from toxins or oxygen depletion in Lake Binder, Iowa. Photo credit: Dr. Jennifer L. Graham, U.S. Geological Survey
    • water pollution
    • hypoxia
    • Freshwater
    Africa
    Data
    March 27, 2008

    Coastal Eutrophic and Hypoxic Areas of Africa

    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution
    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution
    Asia
    Data
    March 27, 2008

    Coastal Eutrophic and Hypoxic Areas of Asia

    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution
    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution
    Oceania
    Data
    March 27, 2008

    Coastal Eutrophic and Hypoxic Areas of Australia and Oceania

    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution
    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution
    Data
    March 27, 2008

    Coastal Eutrophic and Hypoxic Areas of Europe

    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution
    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution
    Latin America
    Data
    March 27, 2008

    Coastal Eutrophic and Hypoxic Areas of South America

    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution
    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution
    Latin America North America
    Data
    March 27, 2008

    Coastal Eutrophic and Hypoxic Areas of North America and the Caribbean

    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution
    • Ocean
    • Freshwater
    • hypoxia
    • Water Quality
    • water pollution

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