Space-time analysis of risk to public health under the exposure to urban noise (on the example of Perm)

The study included acoustic calculations carried out on the territory of the assessment within the boundaries of the settlement area of the rectangle with the square 5.6 km², containing more than 1200 linear noise sources, 2514 nodal points, 138 calculation points. In addition, in reference evaluation points there were performed instrumental measurements of noise levels in the study area, where more than 60 thousandpeople live. Calculated and instrumental noise pollution levels were associated by means of an approximation method. As a result of coupling computational and instrumental data 4 zones with different levels of potential chronic acoustic impact on the population were allocated. With the use of mathematical models of risk the trend of the formation of moderate, high and very high risk was determined in certain areas within the boundaries of the territory. Under the noise influence over 74% of the population were shown to live in conditions of unacceptable health risk. The critical points of a qualitative change in the risk levels moderate - high - extremely high were set, which is for the worst 4^th zone is 7, 30, 40, respectively. To reduce noise levels the study suggested measures, the efficiency of which reaches 27 dBA.

городской шум, шумовая карта, математические модели, риски для здоровья, city noise, noise maps, mathematical models, health risk