Central Sound Marine Sediments Data Summaries, Findings, Publications
The following table contains links to data summaries. (Click on X to open files. Zip files will need to be extracted into another folder. Shaded boxes indicate summaries not yet available.)
* Available upon request.
The Central Sound Sediment Quality Triad Index (PDF) offers a one-page summary of these findings.
Puget Sound Marine Sediment Indicators is a webpage that describes the Sediment Quality Triad Index, a method to rate the health of marine sediments.
All our studies assess sediment quality by evaluating chemistry, toxicity, and benthic (sediment-dwelling) invertebrate community structure. Results are compared with those from similar surveys, conducted with the same methods, to determine changes in sediment quality.
Results are rolled up into the Sediment Quality Triad Index, which categorizes sediment quality on a 5-level scale from unimpacted to clearly impacted. The triad index combines information on measures of exposure (sediment contamination), response (toxicity), and biological effects (benthic invertebrates).
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