Environmental noise standard is to protect people's health and living environment, and to stipulate the allowable range of noise. Different areas have different noise standard values: in areas that need to be quiet, such as health resorts, senior villas and senior hotels, it is 50 decibels during the day and 40 decibels at night; Areas dominated by residential, cultural and educational institutions, including rural living environment, are 55 decibels during the day and 45 decibels at night; In residential, commercial and industrial mixed areas, 60 decibels during the day and 50 decibels at night; In the industrial area, 65 decibels during the day and 55 decibels at night; The areas on both sides of the city's road traffic trunk lines and inland waterways pass through the areas on both sides of the city, with 70 decibels during the day and 55 decibels at night.
Noise is frequent at night, and the peak value is not allowed to exceed the standard value 10 dB. The occasional noise at night, the peak value is not allowed to exceed the standard value 15 dB.