Contents of heavy alkaline-earth (Sr,Ba) and rare-earth (Y,La, Ce) metals in technogenically contaminated soils |
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Authors: | Yu N Vodyanitskii A T Savichev A A Vasil’ev E S Lobanova A N Chashchin E V Prokopovich |
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Institution: | 1.Dokuchaev Soil Science Institute,Russian Academy of Agricultural Sciences,Moscow,Russia;2.Geological Institute,Russian Academy of Sciences,Moscow,Russia;3.Pryanishnikov Perm State Agricultural Academy,Perm,Russia;4.Institute of Plant and Animal Ecology, Ural Division,Russian Academy of Sciences,Yekaterinburg,Russia |
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Abstract: | The contents of heavy alkaline-earth (Sr and Ba) and rare-earth (Y, La, and Ce) metals have been studied in two technogeochemical
anomalies and in the soils of Perm and Chusovoi. The soils are contaminated with barium, lanthanum, and cerium in the territory
of the Cherepovets technogeochemical anomaly formed due to the atmospheric emissions from the Severstal metallurgical works.
Strontium, barium, and yttrium are accumulated in the soils of the Revda technogeochemical anomaly formed by aerial emissions
from the Mid-Urals copper smelter. The portion of technogenic strontium reaches 43–84% near the metallurgical works, while
that of barium and yttrium, 47–63 and 28–32%, respectively. In Perm, the urban soils are polluted with technogenic alkaline-earth
metals, i.e., strontium and barium, with their content reaching 31–48%. In Chusovoi, the calcareous horizons of the soddy
soils are enriched in strontium and depleted in barium. The eluvial-illuvial distribution of the rare-earth metals is registered
in the soddy-podzolic soil. The soils of the terrace are contaminated with barium. The technozem is contaminated with all
the metals (barium and yttrium, in particular). |
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