Freshwater Salinization Syndrome Alters Nitrogen Transport in Urban Watersheds.

ABSTRACT: Anthropogenic salt inputs have impacted many streams in the U.S. for over a century. Urban stream salinity is often chronically elevated and punctuated by episodic salinization events, which can last hours to days after snowstorms and the application of road salt. Here, we investigated the impacts of freshwater salinization on total dissolved nitrogen (TDN) and NO3-/NO2- concentrations and fluxes across time in urban watersheds in the Baltimore-Washington D.C. metropolitan area of the Chesapeake Bay region. Episodic salinization from road salt applications and snowmelt quickly mobilized TDN in streams likely through soil ion exchange, hydrologic flushing, and other biogeochemical processes. Previous experimental work from other studies has shown that salinization can mobilize nitrogen from

SUBMITTER: Galella JG 

PROVIDER: S-EPMC10831318 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature