BookDarren G. Rumbold, Curtis D. Pollman, Donald M. Axelrad, editors.
Contents:
Intro; Preface Volume II; References; Contents; Contributors;
Chapter 1: Aquatic Cycling of Mercury; 1.1 Introduction; 1.2 Cycling of Hg in Surface Water; 1.3 Cycling of Hg in Aquatic Soils/Sediments and the Formation of MeHg; 1.4 Perturbations Affecting Hg Cycling; 1.5 Summary and Conclusions; References;
Chapter 2: Sulfur Contamination in the Everglades, a Major Control on Mercury Methylation; 2.1 Introduction; 2.2 Historical and Background Levels of Sulfur in the Everglades; 2.3 Present Levels of Sulfate in the Everglades; 2.4 Other Forms of Sulfur in the Everglades 2.5 Sources of Sulfate to the Everglades2.6 Remobilization of Sulfur from Drought and Fire; 2.7 Sulfur Controls on Mercury Methylation; 2.8 Other Impacts of Sulfur on the Everglades; 2.9 Conclusions; References;
Chapter 3: A Causal Analysis for the Dominant Factor in the Extreme Geographic and Temporal Variability in Mercury Biomagnific ... ; 3.1 Introduction; 3.2 Methods; 3.3 Analysis; 3.3.1 Candidate Cause: Balance Between Sulfate and Sulfide; 3.3.1.1 Mechanistically Plausible Cause: The Relationship Between the Causal Agent and Effect Should Be Consistent with Known ... 3.3.1.2 Spatial Gradient: Effects Should Decline or Increase as the Stressor Declines or Increases Over Space3.3.1.3 Laboratory Tests of Site Media: Controlled Laboratory Manipulation of Site Media Should Induce the Same Effects as See ... ; 3.3.1.4 Manipulation of Exposure: Field Experiment or Management Actions That Decrease or Increase the Intensity of the Causal ... ; 3.3.1.5 Temporal Gradient: Effects Should Increase or Decrease as the Stressor Increases or Decreases Over Time 3.3.1.6 Stressor-Response Relationships from Ecological Simulation Models: The Causal Agent in the Case Is at Levels That Are ... 3.3.1.7 Verified Predictions: Knowledge of the Causal Agentś Mode of Action Permits Prediction of Unobserved Effects That Can ... ; 3.3.2 Candidate Cause: Microbes Other Than SRB as Hg Methylators; 3.3.3 Candidate Cause: Differences in Food Webs Are Responsible for Extreme Geographical and Temporal Variability in Biomagnif ... ; 3.3.4 Candidate Cause: Dissolved Organic Matter (DOM) May Have as Much or More Influence in the Accumulation of Hg Than Sulfate 3.4 Management Relevant Conclusions3.5 Final Thoughts; References;
Chapter 4: Dissolved Organic Matter Interactions with Mercury in the Florida Everglades; 4.1 Introduction; 4.2 DOM Concentrations and Quality in the FL Everglades; 4.2.1 Sources of DOM; 4.2.2 Impact of Nutrient Enrichment; 4.2.3 Hydrologic Controls on DOM Fluxes and Quality; 4.3 Hg Complexation by DOM; 4.3.1 Hg-DOM and MeHg-DOM Complexes and Competition with Other Ligands; 4.3.2 Implications for Hg and MeHg Transport; 4.4 Interactions of DOM with Hg-Sulfide Species; 4.5 DOM and Microbial Hg Methylation