Faculty of Biology, University of Latvia
EEB
Hard copy: ISSN 1691–8088
On-line: ISSN 2255–9582
Environ Exp Biol (2017) 15: 143–150
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Environmental and
Experimental
Biology

Environ Exp Biol (2017) 15: 143–150

Orginal Paper

Assessment of atmospheric pollution with heavy metals and nitrogen using Pleurozium schreberi mosses as bioindicator in Latvia: spatial and temporal aspects

Guntis Tabors1*, Oļģerts Nikodemus2, Linda Dobkeviča2, Laura Kļaviņa2, Anna Ajanoviča2, Konstantīns Viligurs2, Imants Krūze2
1 Department of Botany and Ecology, Faculty of Biology, University of Latvia, Jelgavas 1, Riga LV–1004, Latvia
2 Department of Environmental Science, Faculty of Geography and Earth Sciences, University of Latvia, Jelgavas 1, Riga LV–1004, Latvia
* Corresponding author, E-mail: guntis.tabors@lu.lv

Abstract

Concentrations of eight metals (Cd, Cr, Cu, Fe, Ni, Pb, Zn and V) and nitrogen were determined during a nation-wide biomonitoring survey using Pleurozium schreberi moss in Latvia. Particular concentrations of heavy metals were clearly associated with local emission point sources in Liepāja (Cd, Cr, Cu, Fe, Pb, V, Zn), Brocēni (Ni), Riga (Cr, Cu) and Daugavpils (Cr, Cu, Fe, Ni, Zn). Increased concentrations in the western part of Latvia (Cd, Cr, Cu, Ni, Pb, V, Zn) were due to the long-range transboundary transport of pollution from Europe and local metallurgical and other factories sources in Liepāja City. Higher concentrations near the Lithuanian border were associated with the impact of pollution from the cement industry of Naujoji Akmene (Cu, Fe, Ni) and the oil refinery of Mažeikiai (Ni, V). In general, concentrations of heavy metals were lower in Latvia compared to the background levels in Europe. In comparison to the previous monitoring results, the concentration of heavy metals in moss has decreased in Latvia. The higher N concentrations in the south-western part of Latvia were due to the long-range transboundary transport of pollution, territories with intensive agriculture and areas close to the industrial cities.

Key words: air pollution, biomonitoring, heavy metals, Latvia, moss, nitrogen.

 
Environ Exp Biol (2017) 15: 143–150
 DOI: http://doi.org/10.22364/eeb.10.22364/eeb.15.13
EEB

Editor-in-Chief
Prof. Gederts Ievinsh



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University of Latvia

 
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