How many decibels are exceeded at night is a nuisance.

More than 45 decibels at night is considered annoying.

According to the relevant laws and regulations, the environmental noise standard for residential, cultural and educational institutions 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. Units and individuals that are harmed by environmental noise pollution have the right to demand the injurer to eliminate the harm and compensate the losses according to law. The treatment methods of residential noise disturbing people are as follows:

1, private message. When noise disturbs people, first find the noise source and the responsible person for effective communication and negotiation;

2. Ask the property for help. If communication fails, you can seek the coordination of residential property. However, it is necessary to find substantive evidence in advance, such as the record of noise decibels detected, and respond to the property service management center, and the property will come forward to adjust both parties;

3. Call the complaint number. If the property does not act, you can call the environmental protection department to complain;

4. If the above methods are not solved, you can call 1 10 to call the police.

The maximum limits of environmental noise in five urban areas are specified:

1, sanatorium area, senior villa area, senior hotel area, 50 decibels during the day and 40 decibels at night (22:00- 6: 00 the next day, the same below);

2, mainly residential, cultural and educational institutions, 55 decibels during the day and 45 decibels at night;

3, residential, commercial and industrial mixed zone, 60 decibels during the day and 50 decibels at night;

4, industrial zone, 65 decibels during the day and 55 decibels at night;

5, the city's road traffic trunk lines, inland waterways, railway primary and secondary trunk lines on both sides of the region, 70 decibels during the day, 55 decibels at night.

Article 45 of the Law of People's Republic of China (PRC) on the Prevention and Control of Environmental Noise Pollution prohibits any unit or individual from using tweeters 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.