Understanding the physiology of baleen whales is critical for their effective management and conservation but sampling free-living whales is exceedingly difficult. To overcome this issue, baleen was used to analyze hormone and mercury patterns, allowing for multi-year retrospect…
"8" Result
Sort By:
The production and export of methylmercury (MeHg) is a critical first step to accumulation of mercury (Hg) in the lower food web and subsequent magnification in game fish. The purpose of this thesis was to identify areas of MeHg production and export in a freshwater estuary with…
The effect of changing anthropogenic mercury emissions on marine wildlife is of broad interest. Methylmercury can cause reproductive and neurological damage and biomagnifies in food webs. Mercury availability in the Pacific Ocean has been increasing and therefore could be expect…
Mercury-selenium (Hg-Se) interaction is perhaps the most documented bioantagonism. Since its discovery in the 1960s, extensive studies have been carried out on the wide occurrence, chemical mechanisms, and toxicological significance of this bioantagonism. However, major knowledg…
This dissertation applies a global chemical transport model (GEOS-Chem) together with ground-based, aircraft, and satellite observations to quantify the sources, transport pathways, and chemical processing of tropospheric pollution in the Arctic. Asian anthropogenic emissions ar…
Informal, small-scale gold mining is a complex, entangled social-natural system that is also the principal livelihood for greater than 40 million individuals residing across more than 70 countries in the global South. While informal gold mining provides extensive socio-economic …
Data from mercury poisoning episodes in Japan and Iraq have been used to derive threshold levels for health effects in humans, and the U.S. Environmental Protection Agency (EPA) has established a reference dose (RfD) for methylmercury of 0.30 μg/kg/day. It is desirable, therefor…