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Ukr. Bot. J. 2018, 75(2): 143–148
Fungi and Fungi-like Organisms

Lichen indication of air quality in Vasylkiv town (Kyiv Region)

Shershova N.V.

As a result of the conducted survey, 39 species of epiphytic lichens were identified in the town of Vasylkiv (Kyiv Region) including 18 indicator species. Five of these lichen species are indicators of particulate (dust) and acid pollution, three species have high sensitivity and 10 species – medium sensitivity to air pollution. Indicators of dust and acid pollution were found on trees along highways, near industrial enterprises, in private housing. Distribution of indicators with high and medium sensitivity is confined to the remnants of oak forests and old abandoned apple orchards in the eastern part of the town. Medium-sensitive species were also found in a birch grove in the southern part of the town and on the trees in a cantonment in its northern part. In the central part of the town, lichen indicators with high and medium sensitivity have not been found. Based on the analysis of the obtained data, maps of lichen distribution were made. On the basis of calculation of the air purity index of LeBlanc and De Sloover, the town area has been subdivided into three isotoxic zones corresponding to different levels of pollution. The zone with an average level of pollution occupies about 25% of the entire territory of the town. The slightly polluted zone occupies about 60% of the town area. Uncontaminated sites occupy the least area (almost 20%) and are located on the outskirts. Our study shows that low values of the indices and, accordingly, the unsatisfactory state of atmospheric air in the first zone is due to the cumulative influence of several factors, among which the most important are rugged terrain, road and rail transport, as well as the lack of green areas in this part of the Vasylkiv urban settlement.

Keywords: air purity index, indicator species, fruticose lichens, foliose lichens, polluted zone, relatively clean zone, clean zone

Full text: PDF (Ukr) 1.19M

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