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Table of Contents
Intro
Preface
Contents
Contributors
Chapter 1: Trends in Atmospheric Deposition of Mercury
1.1 Introduction
1.2 Trends in Atmospheric Mercury: Concentrations and Fluxes
1.2.1 Gaseous Elemental Mercury
1.2.1.1 North America
1.2.1.2 Florida
1.2.2 Wet Deposition
1.2.2.1 The Everglades
1.3 Trends in Recently Deposited Sediments
1.3.1 North America and Europe
1.3.2 The Everglades and South Florida
1.3.2.1 Sediment Core Studies
1.3.2.2 R-EMAP Surficial Sediment Surveys
1.4 Conclusions
References
Chapter 2: Temporal Changes in Mercury Concentrations in Everglades Biota
2.1 Introduction
2.2 Freshwater Everglades
2.2.1 Mosquitofish
2.2.2 Largemouth Bass
2.2.3 Wading Birds
2.2.4 American Alligator
2.2.5 Raccoons
2.2.6 Florida Panther
2.3 Everglades Estuaries and Coastal Waters
2.3.1 Temporal Trends in Hg Levels in Marine Species from South Florida
2.3.2 Trends in Hg Levels in Florida Bay Biota
2.3.3 Trends in Mercury in Fishes in Southwest Florida Estuaries
2.4 Conclusions
References
Chapter 3: Legacy Mercury
3.1 Introduction
3.2 Legacy Hg Effects on Atmospheric Deposition of Hg
3.3 Watershed and In situ Scale Legacy Effects on Hg Biogeochemical Cycling
3.3.1 Legacy Hg Stored in Upland Soils and Catchments
3.3.2 Legacy Hg Stored in Aquatic Ecosystem Sediments
3.3.3 Legacy Hg Stored in Everglades Soils and Sediment
3.3.3.1 Role of Everglades Sediments
3.3.3.2 Magnitude of Hg Stored in Everglades Sediments
3.4 Conclusions
References
Chapter 4: Simulating Mercury Cycling in the Florida Everglades: A Case Study
4.1 Introduction
4.2 Approach and Methods
4.2.1 Modeling Approach
4.2.1.1 Effect of Cell Size
4.2.1.2 Thickness of Surface Sediment Layer
4.2.2 Model Description
4.2.2.1 Sulfur Effects on Methylation in E-MCM
4.2.3 Water Conservation Area 3A-15 Site Description
4.2.3.1 Atmospheric Hg Deposition
4.2.3.2 Hg Loads from Inflows
4.3 Results
4.4 Discussion
4.5 Conclusions
References
Chapter 5: Temporal Changes in the Mercury Signal in the Everglades: A Synthesis
5.1 Introduction
5.2 Long-Term Trends
5.2.1 Biota
5.2.2 Disturbance and Changes in Water Chemistry
5.2.3 Long-Term Trends Synthesis
5.3 Short-Term Dynamics
5.3.1 Largemouth Bass
5.3.2 Gambusia
5.3.3 Spatial Heterogeneity in Temporal Trends
5.4 Legacy Mercury and Time Scales of Recovery
5.5 Summary and Conclusions
References
Chapter 6: Structural Equation Model for Mercury Cycling in the Everglades
6.1 Introduction
6.2 Data Synthesis
6.3 Model Structure and Estimation
6.3.1 Initial Modifications to Pollman (2014) Model
6.3.2 Model Linearity
6.3.2.1 Sulfate Transformation
6.3.3 Model Estimation
6.3.4 Assessment of Goodness of Fit
6.4 Model Results
6.4.1 Model Fitted with R-EMAP Cycles 0-7 Data
6.4.1.1 Model Goodness of Fit.
Preface
Contents
Contributors
Chapter 1: Trends in Atmospheric Deposition of Mercury
1.1 Introduction
1.2 Trends in Atmospheric Mercury: Concentrations and Fluxes
1.2.1 Gaseous Elemental Mercury
1.2.1.1 North America
1.2.1.2 Florida
1.2.2 Wet Deposition
1.2.2.1 The Everglades
1.3 Trends in Recently Deposited Sediments
1.3.1 North America and Europe
1.3.2 The Everglades and South Florida
1.3.2.1 Sediment Core Studies
1.3.2.2 R-EMAP Surficial Sediment Surveys
1.4 Conclusions
References
Chapter 2: Temporal Changes in Mercury Concentrations in Everglades Biota
2.1 Introduction
2.2 Freshwater Everglades
2.2.1 Mosquitofish
2.2.2 Largemouth Bass
2.2.3 Wading Birds
2.2.4 American Alligator
2.2.5 Raccoons
2.2.6 Florida Panther
2.3 Everglades Estuaries and Coastal Waters
2.3.1 Temporal Trends in Hg Levels in Marine Species from South Florida
2.3.2 Trends in Hg Levels in Florida Bay Biota
2.3.3 Trends in Mercury in Fishes in Southwest Florida Estuaries
2.4 Conclusions
References
Chapter 3: Legacy Mercury
3.1 Introduction
3.2 Legacy Hg Effects on Atmospheric Deposition of Hg
3.3 Watershed and In situ Scale Legacy Effects on Hg Biogeochemical Cycling
3.3.1 Legacy Hg Stored in Upland Soils and Catchments
3.3.2 Legacy Hg Stored in Aquatic Ecosystem Sediments
3.3.3 Legacy Hg Stored in Everglades Soils and Sediment
3.3.3.1 Role of Everglades Sediments
3.3.3.2 Magnitude of Hg Stored in Everglades Sediments
3.4 Conclusions
References
Chapter 4: Simulating Mercury Cycling in the Florida Everglades: A Case Study
4.1 Introduction
4.2 Approach and Methods
4.2.1 Modeling Approach
4.2.1.1 Effect of Cell Size
4.2.1.2 Thickness of Surface Sediment Layer
4.2.2 Model Description
4.2.2.1 Sulfur Effects on Methylation in E-MCM
4.2.3 Water Conservation Area 3A-15 Site Description
4.2.3.1 Atmospheric Hg Deposition
4.2.3.2 Hg Loads from Inflows
4.3 Results
4.4 Discussion
4.5 Conclusions
References
Chapter 5: Temporal Changes in the Mercury Signal in the Everglades: A Synthesis
5.1 Introduction
5.2 Long-Term Trends
5.2.1 Biota
5.2.2 Disturbance and Changes in Water Chemistry
5.2.3 Long-Term Trends Synthesis
5.3 Short-Term Dynamics
5.3.1 Largemouth Bass
5.3.2 Gambusia
5.3.3 Spatial Heterogeneity in Temporal Trends
5.4 Legacy Mercury and Time Scales of Recovery
5.5 Summary and Conclusions
References
Chapter 6: Structural Equation Model for Mercury Cycling in the Everglades
6.1 Introduction
6.2 Data Synthesis
6.3 Model Structure and Estimation
6.3.1 Initial Modifications to Pollman (2014) Model
6.3.2 Model Linearity
6.3.2.1 Sulfate Transformation
6.3.3 Model Estimation
6.3.4 Assessment of Goodness of Fit
6.4 Model Results
6.4.1 Model Fitted with R-EMAP Cycles 0-7 Data
6.4.1.1 Model Goodness of Fit.