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Title

Sediment Quality in Puget Sound, 1989-2015

 
Publication number Date Published
18-03-006February 2018
VIEW NOW: Sediment Quality in Puget Sound, 1989-2015 (Number of pages: 2) (Publication Size: 2717KB)




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Author(s) Weakland, S., V. Partridge, and M. Dutch
Description This focus sheet highlights the findings of two reports on results of nearly three decades of Puget Sound sediment monitoring.

Since 1989, the Department of Ecology (Ecology) has monitored sediments to evaluate status and trends Sound-wide. Sediments were evaluated by multiple indicators based on laboratory analyses, including concentrations of potentially toxic chemicals in sediment; sediment and porewater toxicity to test organisms; and species and abundance of sediment-dwelling invertebrates.

Chemical contaminant levels in sediment have remained largely unchanged in most areas of Puget Sound and have decreased in urban bays. Sediments are non-toxic in most of the Sound, though toxicity has increased in some areas, likely unrelated to the chemicals Ecology measured. Regional benthic invertebrate communities have been impacted, mostly in urban bays and shallow restricted inlets with poor circulation. No significant correlation between chemicals measured, toxicity, and benthos has been found, suggesting other causes for impairments in benthic invertebrate communities.
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Contact Sandy Weakland at 360-407-6980 or sandra.weakland@ecy.wa.gov
Keywords benthic invertebrates, Sediment quality, sediment monitoring, Puget Sound
WEB PAGE Marine Water and Sediment Monitoring
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Quality Assurance Monitoring Plan: The Puget Sound Sediment Monitoring Program

Sediment Quality in Puget Sound: Changes in chemistry, toxicity, and benthic invertebrates at multiple geographic scales, 1989–2015

Sediment Quality in Puget Sound: Changes in chemical contaminants and invertebrate communities at 10 sentinel stations, 1989–2015

2011 Addendum to Quality Assurance Project Plan: The Puget Sound Assessment and Monitoring Program: Sediment Monitoring Component

2012 Addendum to Quality Assurance Project Plan: The Puget Sound Assessment and Monitoring Program/Urban Waters Initiative: Sediment Monitoring in the San Juan Islands and Port Gardner/Everett Harbor

2010 Addendum to Quality Assurance Project Plan: The Puget Sound Assessment and Monitoring Program Sediment Monitoring Component.

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