Indicators of nutrient pollution in Long Island, New York, estuarine environments.

ABSTRACT: Roughly eight million people live on Long Island, including Brooklyn and Queens, and despite improvements in wastewater treatment, nearly all its coastal waterbodies are impaired by excessive nitrogen. We used nutrient stoichiometry and stable isotope ratios in estuarine biota and soils to identify water pollution hot spots and compare among potential indicators. We found strong gradients in δ¹⁵N values, which were correlated with watershed land cover, population density, and wastewater discharges. Weaker correlations were found for δ¹³C values and nutrient stoichiometric ratios. Structural equation modeling identified contrasts between western Long Island, where δ¹⁵N values depended on watershed population density, and eastern Long Island where δ¹⁵

SUBMITTER: Watson EB 

PROVIDER: S-EPMC5937021 | biostudies-literature | 2018 Mar

REPOSITORIES: biostudies-literature