Journal article

Mercury distribution and mobility at the abandoned Puhipuhi mercury mine, Northland, New Zealand

CM Gionfriddo, JM Ogorek, M Butcher, DP Krabbenhoft, JW Moreau

NEW ZEALAND JOURNAL OF GEOLOGY AND GEOPHYSICS | TAYLOR & FRANCIS LTD | Published : 2015

Abstract

The United Nations 2013 Minamata Convention advocates for updated environmental assessments of potential point-source sites of mercury contamination, including historic closed or abandoned mines. The Puhipuhi mercury mine (Northland), a historic and abandoned mine site, is located near one of the headwaters of the Wairoa River. In this study, total mercury levels in soils and sediments (37.8-1748 μg g-1), total and methylated mercury in waters (69.6-240 ng L-1 and 0.637-1.95 ng L-1, respectively), and elemental mercury in air (0.06-0.5 ng m-3) were measured to assess the probability and form of mercury release from the site to the surrounding natural environment. Results showed that mercury ..

View full abstract