| Literature DB >> 14594362 |
Jozef Lis1, Anna Pasieczna, Bozena Karbowska, Wlodzimierz Zembrzuski, Zenon Lukaszewski.
Abstract
Thallium was determined in 120 samples of soil and 30 samples of stream sediments from the southeastern part of the Silesian-Cracowian zinc-lead ore deposits. Soil samples were taken from topsoils (0.0-0.2 m) and bottom soils (0.8 and 1.0 m). Thallium was determined by flow-injection-differential-pulse anodic stripping voltammetry. The samples were decomposed sequentially with 73% hydrofluoric acid and a mixture of nitric acid and hydrogen peroxide. The results showed that zinc-lead ore mining as well as their processing and smelting leads to a significant increase of thallium in the top layer of soil and in stream sediments. The highest recorded concentration was 150 ppm Tl for stream sediment and 35 ppm for a soil sample. Thallium concentration in small rivers from the investigated area was by 2 orders of magnitude higher than in the reference area. The highest recorded concentration being 3.24 microg L(-1).Entities:
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Year: 2003 PMID： 14594362 DOI： 10.1021/es0346936
Source DB: PubMed Journal: Environ Sci Technol ISSN： 0013-936X Impact factor: 9.028