四川省城市声环境质量状况与分析

Condition of Urban Sound Environment Quality in Sichuan Province and Its Analysis

根据四川省2007年城市功能区声环境、城市区域声环境和道路交通声环境数据,阐明全省城市声环境质量现状,分析城市声源构成、各等级声覆盖率及其变化趋势。与国内一般情况相比,四川省城市声源构成具有社会生活噪声影响范围更最广,交通噪声影响范围较小等特点。四川省城市环境质量状况总体上处于较好水平,且有逐年下降趋势。同时,存在部分不同程度的噪声污染区,甚至存在一定程度的重度污染区。

According to the data of the sound environment of the urban functional districts,the urban areas and the road traffic in Sichuan of 2007,analyzed the sound source structure,the coverage rate of each sound level and the tendency.Compared with the domestic general situation,the influence scope of social activity noise was wider while the influence scope of traffic noise was smaller in Sichuan.The urban environmental quality in Sichuan was in a good level in general and declined since years.Meanwhile,there were some noise contaminated areas,and even a few of heavy contaminated areas.