Dynamics of migration property of some heavy metals in soils in Kharkiv region under the influence of the pyrogenic factor


Keywords: natural fires, heavy metals, migratory properties of chemical element, map of soils

Abstract

In soils after fires trace metals sharply change their migration ability and can form poorly-soluble hydroxides which are hazardous chemical formations, the nature of which has not been fully explored until now. In addition, in interstitial water, there is a probability of the formation by metals of hydroxocomplexes with different amounts of hydroxide ions. We studied the range of dynamics of migration capacity of sedimentation of hydroxides and the region of predominance of soluble hydroxocomplexes by developing logarithmic concentration diagrams (LCD). We developed logarithmic concentration diagrams, the equation of formation of prevailing forms, using which it is possible to clearly determine the regions of maximum sedimentation (accumulation) of hydroxides and hydroxocomplexes of heavy metals after the influence of the pyrogenic factor. The obtained calculations of the results of the predictive modeling of the dynamics of migration capacity and postpyrogenic migration geochemical processes in ecogeosystems have been organized and systematized. The determined patterns can be useful for the analysis of possible geochemical migration (accumulation) of heavy metals in ecological systems in the study of technogenic and ecological situation after fires. Based on the calculations made, mathematical models of heavy metals` behaviour are developed, which are useful for drawing up a forecast estimation of the dynamics of their geochemical migration and accumulation in ecological systems as a result of the influence of the technogenic loading of the pyrogenic factor. The conditions of concentration and migration of compounds of heavy metals were determined, and the equation for calculating the concentration of mobile forms of trace metal compounds has been developed. The developed map of the activity of geochemical migration of heavy metals under the influence of the technogenic loading of pyrogenic factor will make it possible to elaborate the migratory capacity of trace metals and provide a forecast of their behaviour in ecological systems after fires. This will allow preventive measures to be taken to ensure environmental safety and prevent adverse effects on human health and the condition of the components of the environment. The creation of similar cartographic material may be extrapolated to other regions of Ukraine, affected by technogenic loading of pyrogenic factor. The development of logarithmic concentration diagrams allows us to predict the capacity of compounds of lead, nickel, chromium,and copper for migration or accumulation of heavy metals due to changes in the acidity of soils under the influence of the pyrogenic factor. Having used the map of the soils of the Kharkiv region, we analyzed and provided a forecast of the migration ability of lead compounds in cases of fire in different types and subtypes of different environmental conditions.

Author Biographies

Y. Buts
Simon Kuznets Kharkiv National University of Economics
V. Asotskyi
National University of Civil Defence of Ukraine, Kharkiv
O. Kraynyuk
Kharkov National Automobile and Highway University
R. Ponomarenko
National University of Civil Defence of Ukraine
P. Kovalev
National University of Civil Defence of Ukraine

References

1. Asotskyi V., Buts Y., Kraynyuk O., Ponomarenko R. (2018). Post-pyrogenic changes in the properties of grey forest podzolic soils of ecogeosystems of pine forests under conditions of anthropogenic loading. Journ. Geol. Geograph. Geoecology, 27(2),175-183. https://doi. org/10.15421//111843.
2. Burlakova L. M., Morkovkin G. G., Anan’eva Yu. S., Zavalishin S. I., Kamensky V. A. (2002) Vlijanie lesnyh pozharov na svojstva podzolistyh pochv (na primere Hanty-Mansijskogo avtonomnogo okruga) [Influence of forest fires on the properties of podzolic soils (on the example of the Khanty- Mansi Autonomous Okrug)] Forest Bulletin. 66– 71 (in Russian).
3. Buts Y. (2018) Sistematizacіja procesіv pіrogennoї relaksії ekogeosistem v umovah tehnogennogo navantazhennja [Systematization of processes of pyrogenic relaxation of ecogeosystems in conditions of technogenic loading] Scientific journal «Ecological Safety». 1(25). 7-12 (in Ukrainian).
4. Buts Yu. V. (2018) Features of geochemical migration of chemical elements after technogenic loading of pyrogenic nature. Journal of Engineering Sciences. – Sumy: Sumy State University. Vol. 5, Issue 2. H1-H4.
5. Buts, Y., Asotskyi, V., Kraynyuk, O., Ponomarenko, R. (2018). Influence of technogenic loading of pyrogenic origin on the geochemical migration of heavy metals. Journ. Geol. Geograph. Geoecology, 27(1), 43-50. https://doi. org/10.15421/111829.
6. Buts, Y., Kraynyuk, O. (2018) Dinamika geohimicheskoj migracionnoj sposobnosti himicheskih jelementov pod vlijaniem tehnogennoj nagruzki pirogennogo proishozhdenija [Dynamics of geochemical migration ability of chemical elements under the influence of technogenic loading of pyrogenic origin]. Otkrytye informacionnye i komp’juternye integrirovannye tehnologii [Open Information and Computer Integrated Technologies]: Scientific Bulletin of the National Aerospace University, Vol. 80. 223-234 (in Russian).
7. Krupskij N.K, Polupan N.I. (1979) Atlas pochv Ukranskoj SSR [Atlas of Soils of the Ukrainian Soviet Socialist Republic]. Kiev. 160 (in Russian).
8. Neshovorova NP Saveliev, VG, GV Yvantsova (2014) Izuchenie problemy lesnyh pozharov kak faktora jekologicheskoj opasnosti: regional’nyj aspekt [Investigation of the problem of forest fires as a factor of ecological danger: the regional aspect] Magazine Fundamental research, 12 (6). 1207-1211 (in Russian).
9. Іnteraktivna karta gruntіv Ukraїni [Interactive map of soils of Ukraine]. Main site of agronomists. URL: https://superagronom.com/karty/karta-gruntiv- ukrainy#win19 (in Ukraine).
10. Suchikova Y.; Bogdanov I.; Onishchenko S.; Vambol S.; Vambol V.; Kondratenko O.. (2017). Photoluminescence of porous indium phosphide: Evolution of spectra during air storage. Proceedings of the 2017 IEEE 7th International Conference on Nanomaterials: Applications and Properties, NAP 2017. P. 01PCSI30-1 - 01PCSI30-4. DOI: 10.1109/NAP.2017.8190154
Published
2019-10-05