Abstract

SANTONI, Celina Sofía  and  LIJTEROFF, Rubén. EVALUACIÓN DE LA CALIDAD DEL AIRE MEDIANTE EL USO DE BIOINDICADORES EN LA PROVINCIA DE SAN LUIS, ARGENTINA. Rev. Int. Contam. Ambient [online]. 2006, vol.22, n.1, pp.49-58. ISSN 0188-4999.

The lichen comunity was evaluated in Juana Koslay City, San Luis (Argentina), as environmental pollution bio-indicators. The urban area was compared against two control areas with no pollution sources. In the urban area there is a growing human population and fixed and movile sources of pollutants. The Index of Atmospheric Purity (IAP) was calculated to determinate the presence of air pollution. The assumption of the method is that the frequency of species will be reduced when the pollutants increase. Ecological parameters like diversity, richness and equitativity were determined. According to the results, the areas evaluated do not present differences in the values of IAP neither in lichen diversity. The results would indicate homogeneity in the air in the study areas, even though the areas chosen have remarkable differences in ground use (urban area vs. natural areas).

Keywords : air quality; lichens; bioindicators; index of atmospheric purity.

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