Open Access. Powered by Scholars. Published by Universities.®

Digital Commons Network

Open Access. Powered by Scholars. Published by Universities.®

PDF

Clemson University

All Theses

Theses/Dissertations

Mercury

Articles 1 - 4 of 4

Full-Text Articles in Entire DC Network

Impacts Of Forest Management On Carbon And Mercury Export In Eastern And Western United States Forests, Hunter James Robinson Aug 2020

Impacts Of Forest Management On Carbon And Mercury Export In Eastern And Western United States Forests, Hunter James Robinson

All Theses

Forest management practices including prescribed burning and mechanical thinning are used to maintain the best health of a forest for the intended management goal. These management practices disturb natural biogeochemical cycles including carbon and mercury. Forest floor detritus materials and woody fuels serve as the main source of carbon and mercury that naturally grows and shrinks during normal decomposition cycles. Management manipulates the forest floor through material removal as a result of prescribed burning or an addition of materials due to mechanical thinning. Compounded with post management hydrologic factors there is potential for localized and downstream impacts. Management practices are …


Feasibility Study Of Thermal Treatment For Mercury Removal From Soils, Thomas Edward Spain Aug 2018

Feasibility Study Of Thermal Treatment For Mercury Removal From Soils, Thomas Edward Spain

All Theses

Thermal remediation is an established method for the remediation of volatile organic compounds (VOCs). Thermal remediation for the remediation of elemental mercury was successfully applied by Kunkel et al., 2006 in the laboratory scale. Before the technology can be applied to the field scale, the thermal treatment for mercury needs to better understood using numerical simulation.

The Department of Energy’s TOUGH2/TMVOC Code was developed at the Lawrence Berkeley National Laboratory and was used to evaluate the potential effectiveness of thermal treatment to remediate elemental mercury. TMVOC is a three phase non-isothermal numerical simulator for water, gas, and VOCs in porous …


Using Nestling Bald Eagles To Assess Spatial And Temporal Trends Of Environmental Contaminants, Voyageurs National Park, Minnesota, Henry Pittman Dec 2010

Using Nestling Bald Eagles To Assess Spatial And Temporal Trends Of Environmental Contaminants, Voyageurs National Park, Minnesota, Henry Pittman

All Theses

Bald eagles (Haliaeetus leucocephalus) are a avian species used to monitor environmental contaminants such as mercury (Hg), methylmercury (MeHg), polychlorinated biphenyls (PCBs), and organochlorine pesticides (OCs) in North America. Populations of bald eagles nesting along the Great Lakes were very slow to recover after the ban of PCBs and OCs because these compounds were very persistent. Bald eagles at Voyageurs National Park (VNP) have been monitored since 1973 and provide an opportunity to assess temporal and spatial trends of persistent environmental contaminants. Nestling bald eagle feathers were analyzed for Hg concentrations for the past 12 years. Nestling bald …


Analysis Of Mercury And Lead In Birds Of Prey From Gold-Mining Areas Of The Peruvian Amazon, Peggy Shrum Dec 2009

Analysis Of Mercury And Lead In Birds Of Prey From Gold-Mining Areas Of The Peruvian Amazon, Peggy Shrum

All Theses

This study was conducted to determine levels of lead and mercury in the raptors of the South-eastern Peruvian Amazon. The study took place within the Los Amigos Conservation Concession in Madre de Dios, Peru. Eighty-six raptors from among sixteen species were captured with Bal-Chatri traps. From each individual, feather samples were obtained for mercury analysis and blood was taken for lead analysis. Each raptor was then released without incident or injury.
Mercury amalgamation for gold extraction is widely used by small-scale, transient mining operations, which are numerous along the rivers and creeks in the tropical forests and other locations in …