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| Title | Quality Assurance Project Plan: Screening Survey of Mercury Levels in Edible Fish Tissue from Selected Lakes and Rivers of Washington State | |||
| Month-Year Published | October 2002 | |||
| Online Availability |
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| Short Description |
In recent years, studies have documented mercury at levels of concern in freshwater fish from several waterbodies in Washington. However, limited information is available on the statewide distribution and magnitude of mercury in edible freshwater fish tissue. Also information is lacking on environmental factors that may influence the uptake of mercury into freshwater fish. To address these data gaps, Ecology will collect and analyze fish, sediment, and water samples from eighteen lakes and two rivers statewide. Data generated from this study will be used, in conjunction with existing data, to evaluate the need for additional consumption advisory studies and to aid in designing a long-term monitoring program for mercury. (Also see abstract below) | |||
| Publication Number | 02-03-080 | |||
| Author(s) | Anderson, P. and D. Norton | |||
| Print Availability | ||||
| Number of pages | 21 pp. | |||
| Keywords | assessment, conductivity, environmental, fish, lake, mercury, plan, quality assurance, quality assurance project plan, river, secchi disk, SEPA, study, survey, tissue, visibility, water | |||
| Subject Waterbodies |
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| Related Publications | Title | Relationship | ||
| Mercury in Edible Fish Tissue and Sediments from Selected Lakes and Rivers of Washington State | similar topic | |||
| Abstract | Long Description |
In recent years, several studies have documented mercury at levels of concern in freshwater fish from several waterbodies in Washington State. However, limited information is available on the statewide distribution and magnitude of mercury in edible freshwater fish tissue. Also information is lacking on environmental factors that may influence the uptake of mercury into freshwater fish. To address these data gaps, the Washington State Department of Ecology Environmental Assessment Program (EA Program) will collect and analyze fish, sediment, and water samples from eighteen lakes and two rivers statewide. The target species will be bass due to their wide distribution and tendency to bioaccumulate mercury. Muscle fillet from each bass will be analyzed separately for total mercury. Surface sediments from three locations in each lake will be analyzed for total mercury. Additionally, a single sample of water will be collected from each lake, approximately one meter off the bottom, and analyzed for alkalinity and hardness. Conductivity, dissolved oxygen, and pH will be measured in the field. Visibility of surface waters will be measured using a Secchi disk. Data generated from this study will be used, in conjunction with existing data, to evaluate the need for additional consumption advisory studies and to aid in designing a long-term monitoring program for mercury. A final project report will present the study findings. |
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