1, the country does not have a unified regulation on the size of the square dance music, local policies vary, specific to the location of the local policy shall prevail.
"The Chinese people*** and the State Environmental Noise Pollution Prevention and Control Law" on the noise nuisance behavior and did not put forward the sound must reach how many decibels constitute a noise nuisance necessary conditions.
2, the national regulations on noise standards:
China's environmental noise standards, outdoor urban 5 categories of environmental noise standard values are as follows:
1, category 0 (refers to the special need for quiet residential areas, such as rest and recuperation areas, high-level villa areas, high-level hotel areas, etc.) daytime limit of 50 decibels, the limit of 40 dB at night.
2, Category 1 (applicable to residential, cultural and educational institutions mainly in the area. Rural residential environment can refer to the implementation of the standards in this category) daytime limit of 55 dB, the night limit of 45 dB;
3, category 2 (for residential, commercial, industrial mixed areas) daytime limit of 60 dB, the night limit of 50 dB;
4, category 3 (for industrial areas) daytime limit of 65 dB, the night limit of 55 dB;
5, category 4 (for road traffic arterials in cities) In the city on both sides of the road traffic arterial road area, through the city on both sides of the inland waterway area. Through the urban areas of the railroad on both sides of the main and secondary trunk line of the background noise (refers to the noise level when the train does not pass) limits also implement the standards of this category) limit of 70 dB during the day, the night limit of 55 dB.
Expanded:
Chapter 6 of the Law of the People's Republic of China on the Prevention and Control of Environmental Noise Pollution, which provides for the prevention and control of noise pollution in social life:
Article 46: In using household electrical appliances, musical instruments, or carrying out other indoor recreational activities in the home, the volume of the sound shall be controlled or other effective measures shall be taken to avoid environmental noise pollution to the residents in the surrounding area. noise pollution to the surrounding residents.
Social life noise: mainly refers to the noise generated by people in various social activities such as business transactions, sports competitions, processions and assemblies, entertainment venues, and the cacophony of various home appliances such as recorders, televisions, washing machines, and so on, which are generally below 80 decibels.
References:
Baidu Encyclopedia - Environmental Noise Standards