How many decibels is the noise?
1. In schools, institutions and rural areas, the noise is above 55 decibels during the day and above 45 decibels at night.
2. In areas that need to be quiet, such as convalescent areas and senior villa areas, the noise exceeds 5 decibels during the day and 4 decibels at night.
3, residential areas, commercial areas and industrial mixed areas, more than 6 decibels during the day, more than 5 decibels at night is called noise.
4. If it is an industrial area, it is noise if it exceeds 65 decibels during the day and 55 decibels at night.
5, urban road traffic, inland waterways, railway trunk lines on both sides of the region, more than 7 decibels during the day, more than 55 decibels at night for noise.
6. If you live or work in a noisy environment for a long time, it will cause noise deafness and tinnitus. If it is noise deafness and tinnitus, it is irreversible hearing loss that cannot be cured.