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Lead, cadmium, and vanadium levels in soils and vegetation in metropolitan Toronto indicative of air borne contamination

Journal Article · · Am. J. Bot.; (United States)
OSTI ID:5195067
Lead, cadmium, and vanadium are all regarded as undesirable air contaminants. Their effects on health are well documented. Analyses have been performed on soils and roadside vegetation from eight sites collected around Toronto. The collections were made at increasing distances from the highway at each site, and soil profile samples were taken. The sites gave a very wide range of traffic density. Lead levels were very high in some of the soils near busy roads - reaching 1850 ppM in downtown Toronto compared with 110 ppM in a suburban area. A very significant correlation of concentration with distance from highway was found, and surface accumulation was also indicated. Levels in plants were correlated with soil levels but were approximately ten times lower. Cadmium and vanadium showed contrasting patterns of distribution related to traffic density and urbanization respectively.
Research Organization:
Univ. of Toronto, Ontario
OSTI ID:
5195067
Journal Information:
Am. J. Bot.; (United States), Journal Name: Am. J. Bot.; (United States) Vol. 58; ISSN AJBOA
Country of Publication:
United States
Language:
English