Nutrient enrichment in wadeable urban streams in the Piedmont Ecoregion of the Southeastern United States.

ABSTRACT: The U.S. Geological Survey (USGS) Southeastern Stream Quality Assessment (SESQA) collected weekly samples for nitrogen and phosphorus in 76 wadeable streams in the urbanized Piedmont Ecoregion of the Southeastern United States, during April-June 2014. Total nitrogen (TN) concentrations in excess of U.S. Environmental Protection Agency (EPA) guidelines and statistically greater than at reference locations indicated nitrogen-nutrient enrichment in streams draining poultry confined animal feeding operations (CAFO) or urban centers. Nitrate plus nitrite (NO₃ + NO₂) dominated TN species in urban/CAFO-influenced streams. Streams that drained poultry CAFO and Washington DC had statistically higher NO₃ + NO₂ concentrations than streams draining Atlanta,

SUBMITTER: Journey CA 

PROVIDER: S-EPMC6226590 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature