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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Sediment Toxicity Near Gas Works Park, Lake Union, Seattle |
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Sediment Toxicity Near Gas Works Park, Lake Union, Seattle (Number of pages: 37) (Publication Size: 425KB)
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| Author(s) | Jack, R. | ||||
| Description | The Department of Ecology analyzed sediments using chronic bioassays at 11 sites across northern Lake Union and at two reference sites on Lake Washington. Chemical concentrations in the test sediments were not analyzed. All Chironomus tentans bioassay results document sediment toxicity above the cleanup screening level criteria as defined in Ecology’s Sediment Management Standards. One of the test stations also had a cleanup screening level exceedance for Hyalella azteca. Results indicate that toxicity extends beyond the limits of this investigation, and comparisons with six historic bioassay stations suggest that no changes in sediment toxicity have occurred. | ||||
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| Contact | EAP Publications Coordinator at 564-669-3028 or EAPpubs@ecy.wa.gov | ||||
| Keywords | chemical concentrations, results, toxicity, chemical, sediment, standards, toxic, management, sediment management standards, lake | ||||
| WATERSHED | Water Resource Inventory Area 08 Cedar-Sammamish | ||||
| DATA | Environmental Information Management (EIM) #RJAC005 |
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| RELATED PUBLICATIONS | Title:
Quality Assurance Project Plan: Comparison of Toxicity in Lake Union Sediments Using Molecular DNA Techniques and Conventional Bioassay Measures |
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