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Title

POSTER: 2011 Sediment Quality Assessment of the South Puget Sound Region and Budd Inlet, Including Comparisons with 1999 Regional Conditions

 
Publication number Date Published
12-03-054November 2012
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Author(s) Dutch, M., S. Weakland, V. Partridge, K. Welch, and E. Long
Description Sediment quality from South Puget Sound and Budd Inlet samples collected in 2011 were characterized based on results of 130 chemical analyses and two toxicity tests. South Sound sediment quality was also compared with 1999 baseline conditions. Results were summarized with the Washington State Department of Ecology’s Sediment Chemistry Index and Sediment Toxicity Index values.

Regional Chemistry Index values for both 1999 and 2011, and for Budd Inlet, all surpassed the target value set for this indicator by the Puget Sound Partnership, indicating high sediment quality with respect to contaminants. Regional Chemistry Index values did not differ significantly between years. The value for Budd Inlet was slightly lower in 2011 than that for the region.

Toxicity increased significantly region-wide from 3% of area in 1999 to 52% of area in 2011. In Budd Inlet, the Toxicity Index values categorized 93% area as toxic.

This poster was presented at the 2012 South Puget Sound Science Symposium, October 30, 2012, in Shelton, WA.
REQUEST A COPY The mission of the Department of Ecology is to protect, preserve, and enhance Washington’s environment. To help us meet that goal, please consider the environment before you print or request a copy.

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Persons with hearing loss can call 711 for Washington Relay Service
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Contact Maggie Dutch at 360-407-6021 or margaret.dutch@ecy.wa.gov
Keywords Budd Inlet, PSEMP, Sediment quality, South Puget Sound, 2011
RELATED PUBLICATIONS Title:

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

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