... Near-surface mercury and ozone depletion events occur in the lowest part of the atmosphere during Arctic spring. Mercury depletion is the first step in a process that transforms long-lived elemental mercury to more reactive forms within the Arctic that are deposited to the cryosphere, ocean, and other...

...Jenny A. Fisher; Peter F. Nelson Mercury is a toxic bioaccumulative pollutant, with the atmosphere being the primary pathway for global distribution. Although atmospheric mercury cycling has been extensively monitored and modeled across the Northern Hemisphere, there has long been a dearth...

...A. Lintern; L. Schneider; K. Beck; M. Mariani; M-S. Fletcher; P. Gell; S. Haberle Waterways in the Southern Hemisphere, including on the Australian continent, are facing increasing levels of mercury contamination due to industrialization, agricultural intensification, energy production...

...Dylan Stinton; Larissa Schneider; Sara Beavis; Janelle Stevenson; William A. Maher; Olha Furman; Simon Haberle; Atun Zawadzki; Detlev Helmig; Alexandra Steffen Mercury (Hg) contamination is an environmental concern as a by-product of legacy mining in Australia. Here we investigate the spatial...

...Susan Lawrence; Peter Davies; Steven Allison; Hélène Angot Health and ecological risks associated with the use of mercury in gold mining are well known, with much recent attention focussed on contemporary small-scale artisanal mining. Legacy tailings from historical gold mining may also present...

...Katrina MacSween; Grant C. Edwards; Paul J. Beggs; Detlev Helmig; Hélène Angot Terrestrial air-surface exchange of mercury (Hg) forms an important component of the global Hg cycle, with drivers varying across spatial and temporal scales. These drivers include substrate properties, atmospheric...

... ecological problem downstream. Large volumes of mercury-laden HMS from the Yuba River watershed were deposited within the river corridor, creating the anthropogenic Yuba Fan. However, there are outstanding uncertainties about how much HMS is still contained within this fan. To quantify the deep storage...

...Jacqueline R. Gerson; Charles T. Driscoll; Heileen Hsu-Kim; Emily S. Bernhardt; Oliver Chadwick The largest source of global mercury (Hg) anthropogenic inputs to the environment is derived from artisanal and small-scale gold mining (ASGM) activities in developing countries. While our understanding...

...; Xinrong Ren; Frits Steenhuisen; Alexandra Steffen; Rob Tordon; Simon J. Wilson; Joel D. Blum; Ian Michael Hedgecock Mercury contamination in the Great Lakes continues to have important public health and wildlife ecotoxicology impacts, and atmospheric deposition is a significant ongoing loading pathway...

... of surface soil Pb contamination, a common problem in cities and one that has only recently emerged as a widespread chronic exposure mechanism in cities. Some urban soils are also contaminated with another neurotoxin, mercury (Hg). The greatest human exposure to Hg is through fish consumption, so eating fish...