1. The noise pollution standard is between 45 decibels and 55 decibels. If it exceeds this standard, it is noise disturbing the people. According to relevant laws and regulations, the noise shall not exceed 30 decibels from 22: 00 at night to 6: 00 the next day, and shall not exceed 40 decibels from 6: 00 to 22: 00 during the day.

2. Legal basis: Article 14 of the Law of People's Republic of China (PRC) on the Prevention and Control of Environmental Noise Pollution.

Environmental protection departments and other supervision and management departments have the right to conduct on-site inspections on units and individuals that discharge environmental noise within their jurisdiction, and the inspected must truthfully report the situation and provide necessary information. The inspection department has the obligation to keep technical and commercial secrets for the inspected.

Second, what is the definition standard of noise?

Noise is defined as follows:

1, the standard value of environmental noise in "special residential area" is 45 decibels during the day and 35 decibels at night;

2, "residents, cultural and educational areas" environmental noise standard value of 50 decibels during the day and 40 decibels at night;

3. The standard value of environmental noise in "Class I mixed zone" is 55 decibels during the day and 45 decibels at night;

4. The standard value of environmental noise in the "secondary mixed zone" is 60 decibels during the day and 50 decibels at night;

5. The standard value of environmental noise in "industrial concentration area" is 65 decibels during the day and 55 decibels at night;

6. The standard value of environmental noise on both sides of traffic trunk lines is 70 decibels during the day and 55 decibels at night.