N-Sink org chart

About N-Sink

The N-Sink tool was created to be a useful, easy way for local land use managers to explore the relationship between land use and nitrogen pollution in their waters. N-Sink uses the best available science on land use/nitrogen interactions, plus widely available basic datasets for waterway networks, soils and land use, to highlight major sources and sinks of nitrogen within a watershed context.

Coming Soon visual

N-Sink Tool

Apologies, the tool is currently being updated. The model is being streamlined and the online platform changed to ArcGIS Online. Both are harder than we thought! Stay tuned!

Land Cover Map visual

Watershed Maps

N-Sink is designed as an interactive DIY web tool, but here are examples of the maps created by three existing N-Sink analyses in our pilot watersheds. We will soon post maps of our first post-retooling watershed, the Palmer River in Rhode Island and Massachusetts.

Stream photo

Nitrogen and Aquatic Systems

Nitrogen pollution is emerging as a major threat to coastal watersheds, estuaries and embayments, and the communities within their watersheds. Find some key references here.

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University of Rhode Island

The mission of the Coastal Institute is to advance knowledge and develop solutions to environmental problems in coastal ecosystems.

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UConn Center for Land Use Education and Research

CLEAR provides information, education and assistance to Connecticut's land use decision makers, community organizations and citizens on how to better protect natural resources while accommodating economic growth.

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U.S. EPA Office of Research and Development

EPA is forging a path forward to develop sustainable solutions to the nation's highest priority science needs.