With the NOAA 200th Celebration coming to a close at the end of 2007, maintenance of this Web site ceased. Updates to the site are no longer being made.
NOAA's Mussel Watch is the longest continuous contaminant monitoring program in U.S. coastal waters. The project has analyzed contaminant trends at 300 sites since 1986. Half the sites are sampled one year; the other half are sampled the next.