Comparative analysis of nitrogen concentrations and sources within a coastal urban bayou watershed: A multi-tracer approach.

ABSTRACT: Fate and transport of nitrogen (N) in urban coastal watersheds continues to draw research interest due to serious impacts of N pollution and complexities with N sources and transport pathways. In this study, we used multiple tracers for source identification of N pollution (¹⁵N isotope in nitrate and chemical sewage tracers in water) and waters (using isotopes of ¹⁸O and ²H in water) in a coastal northwest Florida U.S.A. urban bayou fed by two contrasting streams, namely Jackson Creek traversing a dense residential area and Jones Creek flowing mainly through a wetland preserve. Results showed that the slightly higher δ¹⁵N-NO₃ ^- values in Jones Creek and the bayou were insufficient to distinguish N sources; yet the different

SUBMITTER: Devereux R 

PROVIDER: S-EPMC8856010 | biostudies-literature | 2021 Jul

REPOSITORIES: biostudies-literature