Kundelska T. «Assessment and prognosis of the potential ecological risk from physical factors influence in urban system (on the example of Ivano-Frankivsk city)»

As a result of complex theoretical and experimental researches in the qualifying scientific work new scientific theses, conclusions and recommendations are suggested and well-grounded that will allow to improve the quality of administrative decisions acceptance regarding ecological safety ensurance for populations of urbanized territories in part of lowing the level of acoustic, electromagnetic, visual influence and prognosis of potential ecological risk from mentioned influences at their synchronous action. In general, the following results are received in the qualifying scientific work. Scientific results and methodical approaches from previous researches regarding environmental risks assessment from anthropogenic factors influence are analyzed, which are criterions of ecological safety, in particular, of urban environment. Experimental researches of physical influences of anthropogenic origin assessment are carried out, namely: noise, electromagnetic, radiative and visual influences. The author's approach to the assessment of visual impacts within urban systems according to three groups of criteria is developed and updated and our own assessment scale is proposed. A graphical-cluster model of the urban system for assessing visual impacts is designed. A consequence of suggested approach are carried on experimental researches in determination of the indicator of visual quality of the environment with further mapping of assessment results, also is designed software to carry on such an assessment – computer program VisualEcoSafety. A method for assessing the potential environmental risk based on the results of the spatial distribution of physical impact components is suggested: equivalent and maximum sound level, surface energy flux density; visual effects on the urban system’s population. The own formula for the potential ecological risk calculation is developed, and the calculated value of potential ecological risk is estimated on the estimation scale developed by the author in % of the maximum possible on the area which corresponds to simultaneous action of the investigated factors. The calculation results are summarized in the database table. The cartographic image of spatial distribution of potential ecological risk from physical factors of anthropogenic origin within the urban system of Ivano-Frankivsk is created. The practical part of the work is to develop new approaches to risk assessment using cartographic models of physical factors spatial distribution, implementation of visual effects as a component of physical pollution of the urban system in risk assessment and increase the accuracy of such assessment. And also, in improvement of scientific and methodical bases of diagnostics and prognosis of physical factors influence levels in the urban areas and creation the scientifically substantiated database of supervision; opportunities to use theoretical and practical research in the development of measures to reduce potential environmental risk. The results of the qualifying scientific work have been sufficiently tested and are implemented, which is confirmed by the relevant acts.