The concentration, movement and transformation of metal pollutants in Antarctic soils: soil samples from an historically contaminated site (Marble Point) and experimental plots (Scott Base)

Reference samples were taken for each site within close proximity, but away from the influence of the point source. A composite reference sample was taken from the perimeter of the abandoned camp and four water samples were also collected. A total of 113 soil samples adjacent to point sources were collected in the Marble Point area.

The establishment of experiment plots dosed with low levels of metal ion salt solution was carried out on the northern side of Scott Base. Twelve plots were marked out and at the centre of each plot, a small hole was dug, and the soil from approximately 20 cm below the surface was removed. The sample was contaminated with a low level of a solution of either copper or zinc chloride and was replaced into the hole for resampling in the 2007/08 season.

Nine samples of copper foil and zinc wool were also buried and recollected at a later date. Marble Point soil samples were analysed to determine general soil characteristics and levels of pollutant metals. Soil and metal foil samples from the Scott Base site are stored in the Transitional Facility at the School of Geography, Geology and Environmental Science, University of Auckland.