International Journal of Environmental Sciences

Volume 4 Issue 5 2014- March 2014    Pages: 694-702  <<Previous    Next>>

Mercury in the freshwater lakes of Schirmacher and Larsemann Hills, Antarctica

Author Information:

Anoop K. Tiwari1, Neelu Singh2
National Centre for Antarctic and Ocean Research (NCAOR), Goa
1Scientist, 2SRF, at NCAOR, an autonomous Research and Development Institution of the Ministry of Earth Sciences, Government of India

ABSTRACT

The Polar Regions have long been recognized as important sinks for the aerosol, including mercury derived from natural and anthropogenic sources at lower latitudes. The volatile metals like Hg and Pb introduce to atmosphere mostly through burning of fossil fuel. Generally, the distribution of mercury in environmental media is related to pH, oxygen content, organic matter, reducing agents and microbial activity. In this paper we report for the first time, observed concentration of total dissolved mercury in the water samples. These water samples collected during austral summer of 2009 from lakes of Schirmacher Hills (SH), and Larsemann Hills (LH)- the two sites of Indian research activities in Antarctica. Mercury was determined using a Cold Vapor Atomic Absorption Spectroscopy (CVAAS) method. The data provides the baseline concentration of Hg in the aquatic system of East Antarctica, The results show that mercury distribution varies in the range of 0.063-3.65 (1.0±1.41) µgL-1 in lakes of Larsemann Hills ngL-1 and 0.27-0.72 (0.49 ±0.24) µgL-1 in lakes of Schirmacher Hills.

Keywords: Antarctica, Mercury, CVAAS, Larsemann Hills, Schirmacher Hills

.DOI:10.6088/ijes.2014040404510

© 2014 Copyright by the authors, licensee Integrated Publishing Association.This is an open access article distributed under the Creative Commons Attribution License (3.0) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

The electronic version of the article can be downloaded below

Download full text pdf

SocialTwist Tell-a-Friend