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Long term, high level airborne emissions of pollutants from nickel industries on the Kola Peninsula (NW Russia) have resulted in widespread ecosystem injury up to almost complete vegetation eradication within nearest surroundings of the smelters. Although SO2 is the prevailing component of the emissions, it is only part of a much more complex chemical emission spectrum in the region. In addition to acidic gases, industry also emits potentially toxic elements (e.g. metals) which being less volatile than SO2, are deposited within the immediate region in significant concentrations. Additionally, it appears that sources of base cations (co-emission by smelters, sea aerosols, other industries) are adequate to prevent environmental acidification on the regional scale. Acidification of soils and waters appeared only as single cases in the immediate vicinity of the smelters and is not believed to be a major mechanism of environmental deterioration. Proposed critical concentrations (5 g/m3) of SO2 for the northern ecosystems are exceeded over a large area and direct exposure to SO2 is believed to be the possible mechanism of vegetation damage.
Author(s): Banks D; Kashulina G; Reimann C
Publication type: Article
Publication status: Published
Journal: Environmental Pollution
Year: 2003
Volume: 124
Issue: 1
Pages: 151-171
ISSN (print): 0269-7491
ISSN (electronic): 1873-6424
Publisher: Pergamon
URL: http://dx.doi.org/10.1016/S0269-7491(02)00401-3
DOI: 10.1016/S0269-7491(02)00401-3
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