Biogeochemistry of nonylphenol ethoxylates in urban estuarine sediments


We have examined the concentrations and distributions of nonylphenol ethoxylate (NPEO) surfactants and their primary neutral metabolites in two dated sediment cores collected in 1988 and 1996 from a depositional area proximal to a wastewater treatment plant within Jamaica Bay, NY. Total NPEO concentrations ranged from $>$50 mug/g near the surface (4-6 cm, deposited ca. 1990) to below detection limits ($