ISSN 1995-4301

ISSN 2618-8406

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Metal and metalloid contents in lichens from specially protected conservation areas

А.F. Meysurova, A.A. Notov
Section: Chemistry of natural environments and objects
The aim of this work is to evaluate the heavy metal and metalloids contents in indicator lichens inside two nature reserves situated within the Tver region that has a complex infrastructure and large number of industrial zones. Inductively-coupled plasma atomic emission spectral analysis is used to test for the gross and average ratio of 17 metals and metalloids (Al, As, Cd, Co, Cr, Cu, Ge, Fe, Mn, Mo, Ni, Pb, Sb, Sn, Ti, V, Zn) in Hypogymnia physodes lichen samples. The average content of the most elements identified in samples from Zavidovo National Park (ZNP) is higher than in the samples from Central Forest State Nature Biosphere Reserve (CFSNBR). There are such metals as titanium, copper, arsenic, cobalt, molybdenum, and tin among them. Differences are the result of different levels and regimens of air moisture saturation, localization of working production plants, degree of anthropogenic transformation of the territory. Spatial distribution of areas with much higher metal concentrations on reserve territory is resulted apparently from variation in air humidity to large extent. In ZNP addiction between qualitative and quantitative metal impact is defined more clearly by level and character of artificial territory transformation. Moreover, in ZNP wide marshy and forest areas in valley on the Lob’ river were identified, which have conservation importance as they are characterized by lack or very low concentrations of many metals. So it would be useful to take advantage while zoning and correction of regimes.
Keywords: ICP-AES method, biomonitoring, heavy metals, epiphytic lichens, baseline monitoring, pollution, conservation area

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Article published in number 3 for 2020
DOI: 10.25750/1995-4301-2020-3-058-065
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The journal was founded in 2007