Nitrogen (N) from residential lawn fertilizer is an increasing concern for the Long Island Sound (LIS) watershed due to its contribution to water quality impairment. This project uses a GIS-based approach that integrates predictions of household fertilizer use with N loading and delivery models to estimate the potential for reducing N delivery to the Sound through behavior-change campaigns.
Visit the Methods page to learn about the project, data, and analyses.
Read the Story Map to understand the relationship between residential lawn fertilizer and water quality.
Use the Outreach Targeting Tool to explore the fertilizer impact by neighborhood.



