According to different regions, different noise standards are stipulated, and the maximum limits of environmental noise in five urban areas are as follows:
1, sanatorium area, senior villa area, senior hotel area, 50dB during the day and 40dB at night (from 22: 00 to 6: 00 the next day, the same below);
2. Areas dominated by houses and cultural and educational institutions, 55dB during the day and 45dB at night;
3. Residential, commercial and industrial mixed zone, 60dB during the day and 50dB at night;
4. Industrial zone, 65dB during the day and 55dB at night;
5. The areas on both sides of the city's road traffic trunk lines, inland waterways and railway primary and secondary trunk lines are 70dB during the day and 55dB at night.
People's Republic of China (PRC) Environmental Noise Pollution Prevention Act
Article 63
In this Law, the meanings of the following terms are:
(1) "Noise emission" means that noise sources radiate noise to the surrounding living environment.
(2) "noise-sensitive structures" refers to hospitals, schools, institutions, scientific research institutions, houses and other buildings that need to be kept quiet.
(3) "Areas where noise-sensitive buildings are concentrated" refers to medical areas, cultural, educational and scientific research areas and areas where government offices or residential buildings are the mainstay.
(4) "Night" refers to the time between 22 pm and 6 am.
(5) "Motor vehicles" refer to automobiles and motorcycles. Article 30
In areas where noise-sensitive buildings are concentrated in cities, it is forbidden to carry out construction operations that produce environmental noise pollution at night, except for emergency repair operations and continuous operations due to production process requirements or special needs.
If continuous operation is necessary due to special needs, there must be a certificate from the people's government at or above the county level or its relevant competent department.
Night operations as mentioned in the preceding paragraph must be announced to nearby residents.