This book integrates 30 years of mercury research on the Florida Everglades to inform scientists and policy makers. The Everglades is an iconic ecosystem by virtue of its expanse; diversity of biota; and multiple international designations. Despite this, the Everglades has been subjected to multiple threats including: habitat loss, hydrologic alterations, invasive species; and altered water quality. Less well recognized as a threat to Everglades human use and wildlife populations is the toxic metal, mercury. This Volume focuses on sources of mercury to the Everglades from the late-1980's when there was bewilderment as to why there were very high levels of mercury in the Everglades food web. Soon came the finding that mercury loadings from atmospheric deposition accounted for over 95% of total input to the Everglades which resulted in Florida conducting the most comprehensive mercury monitoring and modeling study performed to date. Topics discussed in this Volume include: (1) Why atmospheric deposition fluxes of mercury to the Everglades are amongst the highest in the U.S; (2) That these are overwhelmingly from sources outside of the U.S; (3) That mitigation strategies for resolving the elevated food web mercury problem in the Everglades that rely solely on reducing atmospheric mercury inputs will not be effective for many decades; (4) That consideration of other strategies, in particular controlling factors related to Everglades mercury biogeochemical cycling seem warranted.

Re-examines Everglades' mercury science and evaluates the likely efficacy of other solutions Integrates over 25 years of research on mercury sources, biogeochemistry, bioaccumulation and toxicity, and remediation options, to inform scientists and policy makers Looks into topic such as the evolution of the Everglades as perturbed ecosystem, atmospheric deposition contributions and atmospheric deposition flux, mercury emission sources and more

Autorentext
Curtis D. Pollman, Aqua Lux Lucis, Inc., Gainesville, FL, USA. Darren G. Rumbold, Florida Gulf Coast University, Department of Marine and Ecological Studies, Fort Myers, FL, USA. Donald M. Axelrad, Florida A&M University, Tallahassee, FL, USA

Inhalt

1. Overview of the Everglades.- 2. The Evolution of the Everglades as a Perturbed Ecosystem.-3. Overview of the Atmospheric Mercury Cycle.- 4. Atmospheric Deposition Flux of Mercury to the Everglades.- 5. Mercury Emission Sources and Contributions of Atmospheric Deposition to the Everglades.- 6. Atmospheric Deposition of Mercury in the Everglades Synthesis of Global Cycling and Local Process Effects.