In Walden, Thoreau1 noted that “the largest pond is as sensitive to atmospheric changes as
the globule of mercury in its tube”. Here, we consider the modern understanding of the …

Fish and shellfish are widely available foods that provide important nutrients, particularly n-3
polyunsaturated fatty acids (n-3 PUFAs), to many populations globally. These nutrients …

A detailed understanding of the formation of the potent neurotoxic methylmercury is needed
to explain the large observed variability in methylmercury levels in aquatic systems. While it …

Anthropogenic activities have enriched mercury in the biosphere by at least a factor of three,
leading to increases in total mercury (Hg) in the surface ocean. However, the impacts on …

Rivers are an important source of mercury (Hg) to marine ecosystems. Based on an analysis
of compiled observations, we estimate global present-day Hg discharges from rivers to …

Fish harvested from the Pacific Ocean are a major contributor to human methylmercury
(MeHg) exposure. Limited oceanic mercury (Hg) data, particularly MeHg, has confounded …

Monomethylmercury (CH3Hg) is the only form of mercury (Hg) known to biomagnify in food
webs. Here we investigate factors driving methylated mercury [MeHg= CH3Hg+(CH3) 2Hg)] …

Estuarine environments that have no direct sources of mercury (Hg) pollution may have
sediment concentrations of methylmercury (MeHg) as high as those of polluted marine …

The objective of this study was to examine the redox reactions and other transformations of
mercury (Hg) species in surface waters, and the factors determining the rates of these …

Estuaries are sinks for mercury, in which the most toxic mercury form, neurotoxic
methylmercury (MeHg), is produced by mercury methylators and accumulates in estuarine …