Sediment transport and Hg recovery in Lavaca Bay, as evaluated from radionuclide and Hg distributions

Article Abstract:

Between mainly 1966 and 1970, Alcoa's chlor-alkali facility released mercury into the bay. This study analyzed the sediment layers of the bay using natural and man-made radionuclides, and grain size data from core samples to make the following observations. The mercury is confined to sediment layers closest to the factory. Assuming that the sediment is not disturbed, as would occur if the bay were to be dredged, the mercury would be almost completely isolated in the sediment within two to four years. The bay's sediment does not show natural churning that would otherwise bring the mercury to the surface.

Texas, Research, Environmental policy, Water pollution, Aluminum, Aluminum (Metal), AA, Alcoa Inc., Sedimentary basins

---

Relationships of eutrophication to the distribution of mercury and to the potential for methylmercury production in the peat soils of the Everglades

Article Abstract:

The widespread problem of mercury contamination in south Florida has prodded authorities and researchers to develop measures to stop the causes of mercury accumulation. Eutrophication has been suggested as one of the major causes of methylmercury accumulation in the peat soils of the Everglades due to their high phosphorus concentration. However, analysis of agricultural runoff show that eutrophication has no effect on methylmercury formation in peat soils.

Everglades, Methylmercury, Methylmercury compounds, Eutrophication

---

Atmospheric mercury concentrations associated with geologically and anthropogenically enriched sites in central Western Nevada

Article Abstract:

The Steamboat Geothermal area has the highest concentration of atmospheric mercury among five anthropogenic point sources in central Western Nevada. The occurrence of fossil fuel combustion, waste incineration, industrial processes and metal ore-roasting and refining control the deposition of mercury into the atmosphere. The accumulation of atmospheric mercury concentrations is high at low temperatures especially in enriched areas.

Nevada

Similar abstracts:

• Abstracts: Submicrometer and supermicrometer particles from diesel vehicle emissions. Chemical fractionation of particulate extracts from diesel vehicle exhaust: distribution of ligands for the dioxin receptor
• Abstracts: Combined bending and torsional fatigue of woven roving GRP. Automated fatigue data fitting using structural shift detection
• Abstracts: Managing innovation: lessons from world class organizations. A quality management model for research institutes responsible for government-supported R&D projects
• Abstracts: Effect of particle concentration and fixation on radiocesium sorption. Amine-algae interactions: cation exchange and possible hydrogen bonding
• Abstracts: Solid state 15N NMR study of pyridine adsorption on clay minerals

This website is not affiliated with document authors or copyright owners. This page is provided for informational purposes only. Unintentional errors are possible.