Near real-time environmental data are being generated and publicly posted by HRECOS (Hudson River Environmental Conditions Observing System), HRNERRS (Hudson River National Estuarine Research Reserve System), and the USGS (U.S. Geological Survey).  The River Keeper measures and reports on bacteria in the Estuary.  New York City's Harbor Water Quality Survey has been measuring dissolved oxygen, temperature, and bacteria in the Harbor since 1909.

The Contaminant Assessment and Reduction Project (CARP) collected data on toxic chemicals (PCBs, pesticides, dioxins/furans, PAHs, mercury, and cadmium) in Hudson Estuary water, sediment, and biota between 1998 and 2001.  These data were used to make predictions for how contaminant concentrations change after user-specified load reductions.

Authoritative reports on Hudson River PCBs:

On-Going environmental science programs in the Hudson Basin can be found at the following links:

The Environmental Consortium of Colleges and Universities brings together academics from all parts of the valley who study environmental issues and disseminates their results through articles on its web page and conferences.

Water Science Projects and Experiments for Learning and Family Fun