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3 Methylmercury Contamination of Aquatic Ecosystems: A Widespread Problem with Many Challenges for the Chemical Sciences
Pages 19-26

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From page 19...
... This makes the issue highly visible today, along with discussion of reducing mercury emissions from coal-burning facilities and compliance with the Clean Air Act and its proposed amendments with the Clear Skies Initiative. 19 There are direct health effects on humans and fish-eating wildlife from methylmercury contamination of fish.
From page 20...
... Mocleling More information is available for the United States than most other countries because a great deal of effort is put into understanding mercury emissions and deposition patterns. Data from the Toxic Release Inventory coupled with an atmospheric mercury model can be used to predict mercury deposition patterns around the United States.
From page 21...
... Hundreds of tons of mercury currently enter the California bay delta system. At the same time, the bay is slated for a substantial effort of ecological restoration, and the number-one activity for spending money in that ecological restoration is the construction of wetlands.
From page 22...
... Hydrologic Restoration Versus Water Quality Restoration: Sulfates It has been difficult to express discontent with the approach being used in the hydrologic restoration of the Everglades, which ignores the quality of that water. It is understandable that Everglades National Park people want water as soon as possible; their ecosystem is greatly diminished by the lack of water.
From page 23...
... with mercury greatly increased the amount of mercury that became methylated and bioaccumulated in fish. Low amounts of added sulfate resulted in considerable methylmercury formation.
From page 24...
... Mercury, when applied to the surface of a green plot, whether it is grassland, wetland, or just a place with plants, tends not to move until it penetrates deeper into the soil, into the humus zone where the great mobilizer of mercury in the environment, dissolved organic carbon, is generated. Deep Temperate Lake versus South Florida Wetlands In this project a cohort of yellow perch was followed that were born in the spring of 2001 with no mercury.
From page 25...
... For instance, it is necessary to consider whether hydrologic restoration in South Florida needs to move forward more quickly than the water quality resto25 ration. Florida's Governor Bush signed an amendment to the Everglades Forever Act delaying achieving the water quality criteria until 2016 instead of meeting those criteria in two more years.
From page 26...
... Dr. Krabbenhoft' s big breakthrough as a researcher came when the Florida panther died of mercosis in the early l990s.


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