Distribution of 210Pb in the surface sediments of major rivers of coastal Kerala, South India

Distribution of 210Pb in the surface sediments of major rivers of coastal Kerala, South India

The distribution of 210 Pb in the sediment samples of major rivers of coastal Kerala, namely, Bharathapuzha, Periyar, and Kallada, was studied systematically. The activity of 210 Pb was estimated through 210 Po by radiochemical separation and subsequent deposition on a silver disc. The α-activity wa...

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Veröffentlicht in:Radiochemistry (New York, N.Y.) N.Y.), 2016, Vol.58 (5), p.556-559
Hauptverfasser: Venunathan, N., Narayana, Y.
Format: Artikel
Sprache:eng
Schlagworte:
Chemistry
Chemistry and Materials Science
Chemistry/Food Science
Clay
Coastal environments
Computing time
Fish
Nuclear Chemistry
Polonium
Radiochemical separation
Rivers
Sediments
Silver
Zinc sulfide
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Zusammenfassung:The distribution of 210 Pb in the sediment samples of major rivers of coastal Kerala, namely, Bharathapuzha, Periyar, and Kallada, was studied systematically. The activity of 210 Pb was estimated through 210 Po by radiochemical separation and subsequent deposition on a silver disc. The α-activity was then counted using a ZnS(Ag) counter of 30% efficiency, and the activity was calculated. The mean activities of 210 Pb in the sediment samples of Bharathapuzha, Periyar, and Kallada rivers were found to be 13.5 ± 1.2, 89 ± 3, and 61 ± 2 Bq kg –1 , respectively. Good correlation was found between the 210 Pb activity and organic matter percentage and clay content for Periyar and Kallada rivers.
ISSN:1066-3622
1608-3288
DOI:10.1134/S1066362216050179