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Puget Sound Regional Toxics Model: Evaluation of PCBs, PBDEs, PAHs, Copper, Lead, and Zinc

Publication number Date Published
15-03-025August 2015
VIEW NOW Puget Sound Regional Toxics Model: Evaluation of PCBs, PBDEs, PAHs, Copper, Lead, and Zinc (Number of pages: 127) (Publication Size: 7501KB)

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Author(s) Osterberg, D. and G. Pelletier
Description The PSRTM is a model of contaminant fate, transport, and bioaccumulation in Puget Sound. In this study, Ecology (1) incorporated recent data and loading estimates and (2) expanded the model to simulate PCBs, PBDEs, PAHs, copper, lead, and zinc.

Fate and transport modeling results suggested that current estimates of contaminant loading from the watershed, the ocean, or both, may be too low. Such uncertainties limited the utility of the model for evaluating contaminant source-control strategies.

The updated bioaccumulation model had good skill for predicting PCB and PBDE concentrations in Puget Sound biota. The model identified areas where organisms would be expected to bioaccumulate contaminants to harmful levels, and then estimated how low sediment and water concentrations would need to be at these locations to ensure that contaminants in biota do not exceed harmful-effects thresholds.

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Keywords PCB, model, zinc, Puget Sound, PAH, PBDE, lead, copper
WEB PAGE Toxic chemicals in Puget Sound
WATERSHED Water Resource Inventory Areas
(WRIA 01,WRIA 02,WRIA 03,WRIA 04,WRIA 05,WRIA 06,WRIA 07,WRIA 08,WRIA 09,WRIA 10,WRIA 11,WRIA 12,WRIA 13,WRIA 14,WRIA 15,WRIA 16,WRIA 17,WRIA 18,WRIA 19)

Quality Assurance Project Plan: Puget Sound Regional Toxics Model: Enhancements, Data Integration, and Reduction Target Evaluation

Control of Toxic Chemicals in Puget Sound: Phase 2, Development of simple numerical models: The long-term fate and bioaccumulation of polychlorinated biphenyls in Puget Sound.