Record details

Title
    Changes in Mercury Deposition in a Mining and Smelting Region as Recorded in Tree Rings
Author
    Bače, Radek
    Chrastný, Vladislav
    Hojdová, Maria
    Navrátil, Tomáš
    Rohovec, Jan
    Svoboda, Miroslav
    Vaněk, Aleš
    Žák, Karel
Language
    anglicky
Publication type
    článek v periodiku
Source title - serial
    Water, Air and Soil Pollution
Vol./nr.
    Roč. 216, č. 1-4
Pages
    10
Year
    2011
Thesaurus term
    Mercury, Dendrochemistry, Trees, Geochemical archives, Czech Republic
Keyword
    Changes
    Deposition
    Mercury
    Mining
    Recorded
    Region
    Rings
    Smelting
    Tree
Abstract (in english)
   Metal mining and processing in the central Czech Republic has led to the contamination of surrounding soils and vegetation. In this study, Hg concentrations were measured in spruce (Picea abies L.) and beech (Fagus sylvatica L.) tree rings to monitor historical Hg deposition in the area. The highest Hg concentrations were found in spruce at an HgS smelting contaminated site (up to 15 ng g-1), probably reflecting smelting activities at the end of the nineteenth century. In the vicinity of a Pb smelter, Hg concentrations increased from the 1950s to maxima (up to 8.4 ng g-1) in the 1970s, corresponding with a peak of metallurgical production and smelter emissions in the mid 1970s. A decreasing trend in Hg concentrations since the 1980s was probably related to improvements in flue gas cleaning technologies. The beech trees, which grow at a site between two smelters and range in age from 150 to 220 years, seem to reflect deposition from both point sources.
Contributor
    Česká geologická služba
Contributor code
    ČGS (RIV)
Source format
    R
Import date
    15. 10. 2014