临汾市区交通噪声污染及控制对策

Traffic Noise Pollution and Its Control Counter-measures in the Urban of Linfen City

通过对临汾市区主要道路的环境噪声的实地监测,采用等效声级模型,对所得数据进行比较和研究,结果表明所选各监测点等效连续A声级均超过昼间70 dB(A),夜间55 dB(A).按照交通噪声污染分级,其中有27%监测点的道路交通昼间噪声污染属于恶化等级,73%属于坏等级.同时分析了造成交通噪声污染的主要原因,提出了治理噪声污染的措施和对策.

After the traffic noise levels have been monitored in main roads in the urban of Linfen city, the data were compared and studied by equivalent sound model. The results showed that the equivalent noise level values of each site exceeded the day limit value of 70 dB （A） and night limit value of 55 dB （A）. According to the standard on traffic noise, the daytime noise pollution level of 27% of measured sites reached deterioration grade while that of 73% of measured sites belongs to bad grade. Through anglysis of major causes of the traffic noise pollution, the authors put forward some countermeasures and proposals for abating noise pollution.