Assessment the distribution of noise pollution due to traffic in regions 3 and 4 of Isfahan

Document Type : Research Paper

Authors

1 Department of Environmental Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran

2 Department of Environmental Sciences, Isfahan (Khorasgan) Branch, Islamic Azad University, Isfahan, Iran;

Abstract

Noise pollution is one of the most important environmental problems in metropolitan areas which, threats humans' health in different aspects of mental and physical. Isfahan like other large cities faces to traffic congestion due to vehicles traffic and lack of an effective mechanism to restrict the use of personal vehicles. The purpose of this study was to investigate and map the distribution of noise pollution in areas 3 and 4 of Isfahan to determine the critical points. 16 stations were selected, and sound parameters were measured three times a day during the winter and spring by Bruel & Kjaer sound meter. The results showed that the highest rate of pollution in January recorded in station near Bozorgmehr bridge was 100 dB and the lowest pollution recorded in station before Roknodoleh street and station after Apadana intersection with 69 dB. The highest level of pollution in February was in station near Bozorgmehr bridge at 103 Db. In March, stationafter Mobarezan street had the highest pollution. In April, the highest pollution rate belonged to station near Bozorgmehr bridge at 106 dB. In June, stations 1, 2, 9, 10 and 11 were the most polluted stations w. The results of noise pollution emission mapping using Inverse distance weighted method showed that the highest noise emission was in the area of Bozorgmehr and Ahmadabad Square, which decreased with the distance from the main street. Geostatistical tools for preparing the map of sound dispersion is an useful tool. Results of this study are useful as reference and guideline for future planning and regulations on noise limit to be implemented for urban areas.

Keywords

Journal of Natural Environment
Volume 73, Issue 4
Winter 2021
Pages 729-743

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