نشریه محیط زیست طبیعی

ارزیابی آلودگی صوتی مناطق 3 و 4 شهر اصفهان ناشی از ترافیک

نوع مقاله : مقاله پژوهشی

نویسندگان

1 گروه محیط زیست، دانشگاه آزاد اسلامی، واحد اصفهان (خوراسگان)، اصفهان، ایران؛

2 گروه محیط زیست، دانشگاه آزاد اسلامی، واحد اصفهان (خوراسگان)، اصفهان، ایران

چکیده

آلودگی صوتی یکی از مهم‌ترین مشکلات زیست‌محیطی در کلان شهرهاست که در ابعاد مختلف روانی و جسمی، سلامتی انسان را به مخاطره می‌اندازد. شهر اصفهان همانند سایر شهرهای بزرگ به دلیل تردد وسایل نقلیه و فقدان مکانیسم موثر در محدود کردن استفاده از وسایل نقلیه‌ی شخصی با مشکل ترافیک مواجه است. هدف از این تحقیق بررسی و پهنه‌بندی انتشار آلودگی صوتی در مناطق 3 و 4 اصفهان بود. 16 ایستگاه انتخاب و پارامترهای صوتی در سه نوبت از شبانه روز طی دو فصل زمستان و بهار به وسیله دستگاه صوت‌سنج بروئل و کجایر اندازه‌گیری شد. نتایج نشان داد که در دی ماه بیشترین آلودگی متعلق به ایستگاه بعد از پل بزرگمهربا 100 دسی‌بل و کمترین آلودگی متعلق به ایستگاه‌های قبل از خیابان رکن الدوله و بعد از چهارراه آپادانا با 69 دسی‌بل بود. بیشترین آلودگی در بهمن در ایستگاه پل بزرگمهر در محدوده پارک با 103 دسی‌بل بود. ایستگاه بعد از خیابان مبارزاندر اسفندماه بیشترین میزان آلودگی را داشت. در فروردین بیشترین آلودگی متعلق به ایستگاه پل بزرگمهر در محدوده پارک به میزان 106 دسی‌بل بود. آلوده ترین ایستگاه در اردیبهشت شماره 12 (پل بزرگمهر در محدوده پارک ) با 107 دسی‌بل بود. در خردادماه بیشترین آلودگی متعلق به ایستگاه‌های شماره 1، 2، 9، 10 و 11 بود. نتایج پهنه بندی انتشار آلودگی صوتی نشان داد که بیشترین محدوده انتشار آلودگی صوتی در محدوده خیابان بزرگمهر و میدان احمدآباد بوده است که با دور شدن از خیابان اصلی میزان انتشار صوت کاهش می‌یابد. ابزار پهنه بندی انتشار صوت به عنوان یک ابزار کارآمد و مفید می باشد. نتایج این مطالعه به عنوان مرجع و راهنما برای برنامه ریزی و وضع قوانین در آینده در مورد محدوده مجازصوت در محیط های شهری مفید و کاربردی هستند.

کلیدواژه‌ها

عنوان مقاله [English]

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

نویسندگان [English]

  • Mozhgan Ghafoori 1
  • Mozhgan Ahmadi Nadoushan 2
  • Minoo Moshtaghie 2

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;

چکیده [English]

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.

کلیدواژه‌ها [English]

  • noise pollution
  • traffic
  • Inverse distance weighted (IDW)
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نشریه محیط زیست طبیعی
دوره 73، شماره 4
اسفند 1399
صفحه 729-743