Environmental Noise Pollution in the City of Tabriz,Iran

There are many reports on the noise pollution and its hazards from many cities around the world. The aims of these investigations were the environmental noise pollution in the populated cities in the world. This issue is not looked at as a severe problem and has not been paid much attention to in Iran. However, we intended to study noise pollution in the urban city of Tabriz ‐ one of the crowded and prominent cities of Iran. We carried out our research at 1000 stations over the city and found that sound level was lower than 65 dB in 7.7% of stations, over 75 dB in 59.8% of stations and 37.5% in the range of 65-75 dB (in particular in the service zones and city centre) during the day.