Is Mercury the Achilles Heel of the Restoration Effort?

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The SFMSP studies have been implemented in phases, with results from earlier phases guiding study design in later phases. To the extent practicable, the Phase 1 or scoping studies have been coordinated with related hydrology, nutrient, and ecology studies conducted by the District or its federal or state partners. The data from the Phase 1 studies are now being analyzed, synthesized, and integrated within a mass balance to yield a screening-level or first-cut quantitative understanding of the Everglades mercury problem. Phase 1 results have supported the development of simple predictive models with which to evaluate the potential benefits and detriments of the construction and operation of the stormwater treatment areas for phosphorus removal. Phase 2 studies will focus on the key sources; transport, transformation, and bioaccumulation processes; and exposures, toxic effects, and risks for fish-eating wildlife and their predators. Phase 2 study results will support the development of refined models with which to determine if mercury in Everglades water, sediment, and fish can be reduced to acceptable levels and to select the best option for doing so. The timelines for the Phase 1 and 2 studies are summarized below.

Science-Based Process for Management Decision-Making (click image for full-sized version. )

Everglades Mercury Action Strategy (click image for full-sized version.)

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