Legal analysis: 1. There is no uniform regulation on the size of square dance music in the country, and the policies and regulations vary from place to place, which is subject to the local policies and regulations. The Law of the People's Republic of China on the Prevention and Control of Environmental Noise Pollution does not state how many decibels the noise must reach to constitute a necessary condition for noise nuisance.
2. National regulations on noise standards: In China's environmental noise standards, the standard values of five types of environmental noise in outdoor cities are as follows: Class 1 and Class (referring to residential areas that particularly need to be quiet, such as rest areas, senior villas, senior hotels, etc.) have a daytime limit of 5 decibels and a nighttime limit of 4 decibels. 2, 1 (applicable to residential, cultural and educational institutions-based areas. Rural living environment can refer to the implementation of such standards) daytime limit of 55 decibels, night limit of 45 decibels;
Class 3 and 2 (applicable to residential, commercial and industrial mixed areas) have a daytime limit of 6 dB and a nighttime limit of 5 dB;
Class 4 and 3 (applicable to industrial areas) have a daytime limit of 65 dB and a nighttime limit of 55 dB;
categories 5 and 4 (applicable to the areas on both sides of urban road traffic trunk lines and the areas on both sides of inland waterways crossing urban areas. The limits of background noise (which refers to the noise level when the train does not pass) in the areas on both sides of the main and secondary railway lines passing through the urban area are also subject to this standard). The daytime limit is 7 decibels, and the nighttime limit is 55 decibels.
legal basis: article 46 of the law of the people's Republic of China on the prevention and control of environmental noise pollution. when using household appliances, musical instruments or other indoor entertainment activities, the volume should be controlled or other effective measures should be taken to avoid causing environmental noise pollution to the surrounding residents. Social life noise: it mainly refers to the noise generated by people in various social activities such as business transactions, sports competitions, processions and gatherings, entertainment places, and the noise of various household appliances such as tape recorders, televisions, washing machines, etc. This kind of noise is generally below 8 decibels.