Vol. 7 pp. 609-624

A.Yu. Alexandrova, S.S. Timofeeva

ECOLOGICAL RISKS DUE TO ATMOSPHERE POLLUTION BY STONE OF DUST FACING AND ORNAMENTAL STONES

Annotation. In this article, the ecological risk at atmospheric pollution by stone dust formed as a result of mining, processing and treatment of facing and ornamental stones on the example of such rocks as granite, migmatite, marbleized limestone, nephrite, charoite, serpentinite and ophiocalcite is considered. The purpose of the study is to develop a risk management algorithm and an environmental risk management scheme associated with the spread of stone production dust emissions at facing and ornamental stone enterprises. Calculations were performed for the conditions of the presence of a specific source of atmospheric pollution. The sequence of calculations included determination of the gas-air mixture flow rate taking into account climatic peculiarities; calculation of surface concentrations of pollutants along the emission plume centreline and surface concentrations of stone dust. The risk of occurrence of the critical level versus the area of zones of MAC exceedance is calculated, which has different values for each type of production dust of the studied rocks. The authors propose to reduce the maximum permissible concentrations for inorganic dust and suspended particles РМ10μm - РМ10nm to the levels valid in the international system of standards and taking into account the consistent air pollution. The study was carried out with the financial support of the Russian Foundation for Basic Research under the scientific project No. 19-35-90096.

Keywords: еnvironmental risk, facing and ornamental stones, dust, dust nanoparticles, dust microparticles, mining enterprises.

For citation: Alexandrova A.Yu., Timofeeva S.S. [Еcological risks due to atmosphere pollution by stone of dust facing and ornamental stones] Upravlenie tekhnosferoi, 2024, vol. 7, issue 4. (In Russ.). Available at: https://technosphere-ing.ru/ рр. 609–624.

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About the Authors

Alexandrova Angelina Yurevna

Graduate Student, Irkutsk National Research Technical University, 664074, Irkutsk, Russia,

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Timofeeva Svetlana Semenovna

Doctor of Technical Sciences, Professor, Irkutsk National Research Technical University, 664074, Irkutsk, Russia.

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