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1 Polish Journal of Ecology

1 2006

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Air temperature and ground level ozone concentration in submountain beech forest (Western Carpathians, Slovakia)

100%

Kellerova D. , Janik R.

tom Vol. 54, nr 3

505-509

The seasonal dynamics of ozone concentration and air temperature for an open and a forest plots on Ecological Experimental Site (EES) was studied. The EES in Western Carpathians (Central Slovakia) is situated in submountain beech forest on 500 m a.s.l. in Kremnicke vrchy Mts. The measurements (passive method) were realized for 1999-2003 years. The mean monthly values of concentration of ground level ozone follow a natural course (range 34-60 [mi]g m^-3), with one or two peaks in the growing season. No significant difference between open area and forest stand was found. The daily critical limit of 65 [mi]g m^-3 was exceeded eight times. The exceeded values of the ozone concentration are influenced by climate factors, primarily air temperature. Long-range transport of pollutants influence them to greater extent that it was supposed initially. The annual mean ozone concentration corresponds to the situation in the whole Central-European region. The values measured in submountain beech beech forests were however lower compared to the industrial agglomerations.