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Sediment Quality in Central Puget Sound, Changes over a Ten-Year Period

Publication number Date Published
13-03-021June 2013
VIEW NOW Sediment Quality in Central Puget Sound, Changes over a Ten-Year Period (Number of pages: 10) (Publication Size: 2682KB)

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Author(s) V. Partridge, S. Weakland, M. Dutch, E. Long, and K. Welch
Description In 2008 and 2009, the Washington State Department of Ecology surveyed surface sediment conditions throughout Central Puget Sound and compared them to results from a similar survey conducted with the same methods in 1998-1999. Sediment condition was assessed using four indices of sediment contamination, toxicity to laboratory animals, sediment-dwelling invertebrate communities (benthos), and combined Sediment Quality Triad Index. Overall sediment quality in Central Puget Sound declined significantly over this 10-year period, due to adversely affected benthos and increased low-level toxicity. This report gives the primary results of the 2008-2009 survey and comparisons to the 1998-1999 survey, all of Puget Sound, and the Puget Sound Partnership's “Vital Signs” indicator targets. Data and supporting information are linked under “Web Page” below.
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WEB PAGE Marine Sediment Monitoring
DATA Environmental Information Management (EIM) #PSAMP_SP


Quality Assurance Project Plan: The Puget Sound Assessment and Monitoring Program Sediment Monitoring Component.