Indices of atmospheric purity and fluoride pollution pattern in Arvida, Quebec
- 1 May 1972
- journal article
- Published by Canadian Science Publishing in Canadian Journal of Botany
- Vol. 50 (5) , 991-998
- https://doi.org/10.1139/b72-120
Abstract
Indices of atmospheric purity (IAP) of 42 sites located in all directions from the aluminum factory at Arvida and spread out in about 250-km2 area, were determined on the basis of phytosociology of epiphytes of Populus balsamifera. These index values ranging from 0 to 103 were arranged into six groups and the investigated area was accordingly delineated into six IAP zones to represent areas with different levels of fluoride pollution. A relative picture of the approximate limits of fluoride contamination in different zones is obtained by the fluoride accumulation in Parmelia sulcata thalli transplanted at various sites in the area.Keywords
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