Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Nitrogen and phosphorus inputs to rivers (kton year–1) in the year 2012 on multiple scales (sub-basin, grid, county, and polygon). The results are shown for dissolved inorganic nitrogen (DIN) and dissolved inorganic phosphorus (DIP). For dissolved organic nitrogen (DON) and dissolved organic phosphorus (DOP), see Figure S15. NA indicates regions for which detailed input data are not available.
