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Ecology Publications & Forms |
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Ecology Publications & Forms |
| Title | Quality Assurance Project Plan: Monitoring Persistent, Bioaccumulative, and Toxic Chemicals (PBTs) Using Age-Dated Lake Sediment Cores: 2023-2027 |
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Quality Assurance Project Plan: Monitoring Persistent, Bioaccumulative, and Toxic Chemicals (PBTs) Using Age-Dated Lake Sediment Cores: 2023-2027 (Number of pages: 55) (Publication Size: 3683KB)
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| Author(s) | Mathieu, C. | ||||
| Description | This Quality Assurance Project Plan outlines the continued monitoring of persistent, bioaccumulative, and toxic chemicals (PBTs) using sediment cores during 2023 through 2027. Ecology’s PBT Monitoring Program collects a single sediment core from three lakes per year for analysis of a rotating PBT analyte. Selected sediment core horizons are analyzed for the target PBT analyte as well as a suite of parameters to age-date the sediment layers. Contaminant profiles are then reconstructed to characterize trends in concentrations and fluxes of the PBT. The target analytes for the next five years of sampling are: PBDEs (2023), PCBs (2024), PAHs and mercury (2025), PFAS (2026), and HBCD (2027). Based on criteria discussed in this QAPP, three different waterbodies have been selected for each sampling year. Study locations represent a wide range in PBT contamination potential, pathways of interest, and physical characteristics. |
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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.
ADA Accessibility The Department of Ecology is committed to providing people with disabilities access to information and services by meeting or exceeding the requirements of the Americans with Disabilities Act (ADA), Section 504 and 508 of the Rehabilitation Act, and Washington State Policy #188. Visit Ecology’s website for more information. |
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| Contact | Callie Mathieu at 360-407-6965 or callie.mathieu@ecy.wa.gov | ||||
| Keywords | QAPP, Per- and polyfluoroalkyl substances (PFAS), HBCD, PBT, sediment core, PCB, PAHs, toxics monitoring, sediment, mercury, PBDE, PBDEs, PBTs, PCBs | ||||
| WEB PAGE | Contaminants in lake sediment cores | ||||
| WATERSHED | Water Resource Inventory Areas (WRIA 03,WRIA 07,WRIA 08,WRIA 09,WRIA 11,WRIA 12,WRIA 14,WRIA 17,WRIA 45,WRIA 48,WRIA 49,WRIA 55,WRIA 59,WRIA 62) |
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| RELATED PUBLICATIONS | Title:
Focus on: PCB Sediment Trends – Summer 2024 Quality Assurance Project Plan: Long-Term Monitoring of Persistent, Bioaccumulative, and Toxic Chemicals using Age-Dated Lake Sediment Cores Quality Assurance Project Plan: Depositional History of Mercury in Selected Washington Lakes Determined from Sediment Cores. |
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