DOI

10.24411/1816-1863-2018-11011

Section

Ecology                                  

Title

WAYS OF MEASUREMENTS AND SOME RESULTS OF MONITORING OF BEHAVIOUR OF HEAVY ELEMENTS IN GREEN PLANTS

Сontributors

E. M. Nesterov, D. of Ped. Sc., Cand. of Geol. and Mineral. Sc., Department Chair at the Herzen University, St.-Peterburg, This email address is being protected from spambots. You need JavaScript enabled to view it.,

A.V. Grigoriev, Head of Laboratory at the a Technique of NPO Spektron, This email address is being protected from spambots. You need JavaScript enabled to view it.,

Yu. A. Makarova, Graduate Student at the Herzen University, This email address is being protected from spambots. You need JavaScript enabled to view it.,

L. M. Zarina, Сand. ofGeogr. Sc., Associate Professor at the Herzen University, This email address is being protected from spambots. You need JavaScript enabled to view it.

Abstract

Authors have offered a way of determination of content of heavy elements in green plants. The X-ray fluorescent method allows to define elements in the dried-up tests of plants directly without combustion and their translation in solution after concoction of elements from ashes. Pollution of vegetation canhap¬pen in two different ways. The first way — pollution of foliage during absorption by a plant of mineral substances and pollyutant from the soil. The second way — sedimentation of dust and aerosols on leaves as a result of intake of pollutants from the atmosphere. Modern researches show that quite often adverse effect of an aerosol is shown not when it is airborne in rather small concentration and when joins in a chain of ecological circulation of substances and collects in key links of an ecosystem. During approba¬tion of a way in the conditions of the urban environment the condition of foliage of green plants is char¬acterized. On the example of various districts of St. Petersburg deterioration in indicators of resistance of test objects to anthropogenic influence at approach to the downtown is shown. The received results are confirmed with data of bioindicator researches.

Keywords

X-ray fluorescence method, pollutants, heavy metals, urban environment, plant materials, bioindication, GIS.

References

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