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Chesapeake Bay Nutrient Inventory (1985-2019)

Published by U.S. EPA Office of Research and Development (ORD) | U.S. Environmental Protection Agency | Metadata Last Checked: August 02, 2025 | Last Modified: 2022-05-06
Leverage existing nutrient input/output data from the Chesapeake Bay Program's CAST database to develop nitrogen and phosphorus inventories. These inventories will highlight spatiotemporal variability in point and non-point source pollution throughout the watershed, and can be used to monitor progress in decreasing pollution sources as well as retrospective water quality analyses looking to explain past water quality trends. This dataset is associated with the following publication: Sabo, R., B. Sullivan, C. Wu, E. Trentacoste, Q. Zhang, G. Shenk, G. Bhatt, and L. Linker. Major point and nonpoint sources of nutrient pollution to surface water have declined throughout the Chesapeake Bay watershed. Environmental Research Communications. IOP Publishing, PHILADELPHIA, PA, USA, 4: 1-19, (2022).

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