Research on the Noise Variation Trend and Prevention Measures of Functional Area of Urban Area in BaoShan City

With the rapid expansion of urban area in Baoshan city,noise pollution can't be ignored. According to seven years noise quality situation,the change trend and causes of noise were analyzed. Some measures such as modifying and improving the functional zoning of environmental noise,and improving the technical level of urban noise monitoring were put forward,which would provide for reference to the environmental administrative of Baoshan.