GEOLINKS International Conference 2019, Book 3
ECOLOGY AND ENVIRONMENTAL STUDIES
ZONING OF URBAN AREAS TO HIGHLIGHT THE RISK LEVELS OF HEALTH VIOLATIONS INDUCED BY ENVIRONMENTAL MAN-CAUSED NOISE
Prof. Dr. Irina May, Dmitrii Koshurnikov
This study proposes and tests the approach to zoning of the urban area on the level of risk of the possible health disorders among population exposed to anthropogenic ambient noise. The method is based on the coupling of instrumental and calculated data about the level of acoustic exposure. The zoning was made in the account of the identification of the negative effects’ sources, acoustic calculations and the results of instrumental measurements. The coupling of the calculated and field data with establishing the coefficients of correspondence between the calculated and actual average daily noise levels at each point of the field measurements was implemented.
The procedure of accuracy triangulation with the following procedure of points’ interpolation lying inside the triangle, and the extrapolation procedure for the points, lying outside the triangle, was performed. Taking into account the obtained widely distributed accuracies, the noise levels on grid points on the map of the study area were calculated.
A map of the spatial distribution of verified noise levels was generated. Zoning of the selected area due to the risk of possible health disorders with the use of a certain scale of the risk was conducted. It was established that the proposed method of spatial quantification of noise level increases the accuracy of the acoustic exposure assessment, as evidenced by the change in of accuracy from 0.88 - 1.35 (before coupling) to 0.96 - 1.17 (after coupling), t. e. significantly increased the convergence of the field and calculated and instrumental data obtained as a result the coupling.
The territory was divided into 4 zones in consideration of the level of exposure and generated health risk. For each of the selected areas the program of organizational, technological and sanitary measures was proposed
acoustic calculations, instrumental noise measurements, conjugation, interpolation, extrapolation, exposure, public health risk, territory zoning.