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国务院环境保护委员会要求,1986年环环境保护重点城市(指洛阳会议确定的51个城市),要划一定区域或街道作为噪声控制区,采取措施,使该区域或街道的噪声达到国家标准.这里指划定“一定区域”,大的如城市的一个区;小的如城市的工业区、居住区、文教区,医疗区、风景游览区……,噪声控制对象是户外的各种环境噪声;(交通噪声;包括机动车辆、火车、船舶、飞机等)工业噪声建筑施工噪声等……所产生的噪声.国家标准(GB-3096-82)确定.医疗区昼间声级45dB以下,居民、文教区昼间A声级50dB以下.至于划定“一定街道”,如市内某一条街道,噪声控制的主要对象是机动车辆在街道行驶时发出的噪声,达到国家标准是A声级70dB以下.
The State Council Environmental Protection Committee requires that in 1986 key cities for environmental protection (51 cities designated by the Luoyang Conference) plan to draw certain areas or streets as noise control areas and take measures to make the noise in the area or streets meet the national standards. Refers to a designated area, a large city such as a district; small urban areas such as industrial areas, residential areas, cultural and educational areas, medical areas, scenic areas ... ..., the noise control object is a variety of outdoor noise environment; (Traffic noise, including motor vehicles, trains, ships, aircraft, etc.) industrial noise, construction noise, etc. The noise generated by the national standard (GB-3096-82) to determine the medical area daylight level below 45dB, residents, Cultural and educational areas daytime A sound level below 50dB.As for the delimitation of “a certain street”, such as a street in the city, the main object of noise control is noise emitted by motor vehicles in the streets, to the national standard is A sound level below 70dB .