Heavy Metals in Antarctic Ice from Law Dome: Initial Results

New isotopic evidence for chronic lead contamination in the San Francisco Bay estuary system: Implications for the persistence of past industrial lead emissions in the biosphere

“…These reductions have been noted in a variety of environmental matrices, including urban and remote aerosols (1)(2)(3)(4), Arctic and Antarctic snow and ice cores (5)(6)(7)(8), Pacific and Atlantic seawater (2,(9)(10)(11), North American and European ombrotrophic bogs (12)(13)(14), European and North American rivers (15,16), and human blood (17). Because lead in each of these reservoirs is directly or indirectly controlled by anthropogenic lead emissions, their levels of contamination will decline with source reductions.…”

Seasonal variability in the input of lead, barium and indium to Law Dome, Antarctica

“…These samples were collected from a variety of locations including: Victoria Land ( Van de Velde et al, 2005); Coats Land (Planchon et al, 2002(Planchon et al, , 2003; the Antarctic Peninsula (Suttie and Wolff, 1992) and; Lambert Glacier (Hur et al, 2007). Only Hong et al (1998) have investigated seasonal variability in heavy metals preserved in ice, from a selection of cores recovered from Law Dome, spanning the industrial revolution (1830s-1940s). The results from the aforementioned studies varied, with maxima and minima concentrations occurring at different times of the year for the same element, or no systematic seasonal variation of elements at the same location.…”

Clair Patterson's Influence on Environmental Research

“…Subsequent analyses in both the Arctic and Antarctic confirmed the pandemic dispersion of anthropogenic lead (Ng and Patterson, 1981;Boutron and Patterson, 1983, 1986, 1987Patterson et al, 1984;Boutron et al, , 1990Boutron et al, , 1991Hong et al, 1994;Rosman et al, 1994). The continued use of ice core analyses to chronicle global variations in lead and other trace metal (Cd, Cu, and Zn) contamination is exemplified in the article by Hong et al (1998).…”