Survey and Analysis of Noise Pollution in the Bidboland Gas Refinery

Document Type : Original Research Paper


1 Associate Professor, Graduate Faculty of Environmental, University of Tehran, Tehran, Iran

2 PhD Student in Professional Hygiene, Faculty of Public Health, Islamic Azad University, Tehran, Iran

3 MSc Student in Chemical Engineering, University of Petroleum, Tehran, Iran

4 BSc Student in Professional Hygiene, University of Medical Science, Tehran, Iran

5 MSc. Student in Environmental Science, Faculty of Science and Research, Islamic Azad University, Tehran, Iran



We investigated the issue of noise pollution in the Bidboland gas refinery
by noise measurement and surveys. The Bidboland gas refinery has several process units.
The sound pressure levels were measured at several places, such as units of 200, 300,
400, 500, boiler, powerhouse area, cooling towers pumps, and maintenance area, and the
corresponding noise maps were produced by using sound plan software. We identified the
sources of noise pollution. We first measured the mean A-weighted sound pressure level
in each study unit and analyzed the obtained data in Microsoft Excel. The noisiest units
were identified and some suggestions were offered to reduce the sound exposure level. It
was specifically noted through the surveys that the noise levels detected in all tested
industries was much above 80 dBA limit specified by regulations. In lieu, various
measures to control the noise pollution were contemplated and discussed.


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