National Status and Trends, Mussel Watch Program: An Assessment and Comparison of Chemical Contaminants in Surficial Sediments from Hudson-Raritan Estuary from 1991 and 2018

In 1991-92, a survey of chemical contamination and toxicity of sediments performed by the National Oceanic and Atmospheric Administration’s (NOAA) National Status and Trends (NS&T) Program found elevated concentrations of organic and metal contaminants throughout the Hudson-Raritan Estuary (HRE). In 2018, a subset of the sediment stations previously sampled in 1991 were re-surveyed by the national Mussel Watch Program to assess changes in the sediment contamination levels in the HRE after more than two decades of cleanups and restorations.