How many decibels of noise is annoying?

First, how many decibels of noise is a nuisance?

1, normal residential buildings exceed 55 decibels during the day, and even if they exceed 45 decibels at night, they will be a nuisance. In urban areas where noise-sensitive buildings are concentrated, it is forbidden to carry out construction operations that produce environmental noise pollution at night, and the competent administrative department of environmental protection of the local people's government at or above the county level where the project is located shall order it to make corrections and may also impose penalties.

2. Legal basis: Item 3 of Community Noise Emission Standard.

In areas dominated by houses and cultural and educational institutions, the environmental noise standard is 55 decibels during the day and 45 decibels at night; The indoor noise standard of residence is formulated according to the requirements of quiet life and the environmental noise standard of the region, with reference to the window conditions of residence, and generally should not be lower than the environmental noise standard of the region by 20 decibels.

Second, which department is in charge of the square dance noise disturbing the people?

The noise of the square dance is under the control of the public security organs. Noise generated by indoor decoration activities, square loudspeakers, hawking, etc. is mainly managed by public security organs. According to the law, it is forbidden for any unit or individual to use loudspeakers in areas where noise-sensitive buildings are concentrated in urban areas. Organizing entertainment, assembly and other activities in urban streets, squares, parks and other public places, as well as using audio equipment that may produce excessive volume that may interfere with the surrounding living environment, must abide by the provisions of the local public security organs.