Lunova O.V., Boiko K.Ye. Risk assessment approach applied for estimation of siversky donets groundwater quality
- Details
- Parent Category: Geo-Technical Mechanics, 2020
- Category: Geo-Technical Mechanics, 2020, № 150
Geoteh. meh. 2020, 150, 15-23
https://doi.org/10.15407/geotm2020.150.015
RISK ASSESSMENT APPROACH APPLIED FOR ESTIMATION OF SIVERSKY DONETS GROUNDWATER QUALITY
1Lunova O.V., 1Boiko K.Ye.
1State ecology academy of postgraduate education and management,
UDC 556.388:622.8.1/.8:006.83
Language: Ukrainian
Annotation.
In order to create a risk-assessment model, a cartographic model of groundwater vulnerability to pollution was constructed and a model of the distribution of the anthropogenic load amplitude reflecting the degree of influence of the main groundwater pollution objects was created. The vulnerability model was constructed by using an index assessment of input criteria, among which soils characteristic, vadose zone characteristics, geological media of groundwater bodies of Cenozoic-Mesozoic group were used. The pollution load index was calculated. Input data for calculation were concentrations of hazardous substances of the I and II classes of danger (metals, semimetals, halogens and nitrates and phenol compounds) measured in groundwater samples during the 2017 monitoring year period. The results of the value interpolation of calculated pollution load index reproduce the focal (point) nature of groundwater pollution and indicate the significant groundwater pollution of Quaternary and Upper Cretaceous, both Carboniferous aquifers and corresponding groundwater bodies. A logical matrix was created on the basis of a combination of pressure magnitudes and vulnerability classes. The created model of environmental risk assessment enables to assign preliminarily each groundwater massif to the corresponding risk class for achieving environmental goals.
An adaptation of the national water resources management system in accordance with the requirements of European legislation creates the legislative basis for implementing reforms in the field of water monitoring and use. According to the basin management principle, new definitions, such as surface and groundwater bodies, pose in terms of management unit. The preliminary assessment (both quantitative and qualitative) groundwater body status is a necessary procedure before development and implementation of appropriate monitoring program and measures for improving the groundwater ecological status. In the course of this study, a methodology of groundwater deterioration risk assessment was tested as a tool for preliminary groundwater body ecological status estimation. The research provides an approbation of the methodology in relation to groundwater bodies, identified and delineated within Siversky Donets river basin (that covers Kharkiv, Donetsk and Lugansk regions).
Keywords:
vulnerability, pollution load index, risk of pollution, groundwater body, ecological status
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About the authors
Lunova Oksana Volodymyrivna, Candidate of Technical Sciences (Ph.D), Associate Professor, Researcher of the Environmental and Resource Rehabilitation Center of the Donbas State Ecological Academy of Postgraduate Education and Management, Kyiv, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.
Bоiко KaterynaYevhenivna, Lecturer at Department of Environmental Safety, State Ecological Academy of Postgraduate Education and Management, Kyiv, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.