In daily life, we often encounter various noises, among which the noise generated by school canteens and restaurant exhaust fans is the most common. So, what is the decibel value of these noises to be considered nuisance? This article will answer this question in detail.
First of all, we need to understand that the level of noise is measured in decibels (dB). In China's "Acoustic Environment Quality Standards", the noise limits of different functional areas are clearly stipulated. For schools, the noise limit for teaching areas is 50db, while school canteens are living areas with a noise limit of 70db. In other words, the noise level in the school canteen must not exceed 70 decibels, otherwise it will have an impact on the surrounding environment.
For restaurants, the noise level generated by their exhaust fans is usually between 80-90db. However, according to China's "Social Living Environment Noise Emission Standards", the boundary noise of commercial cultural and entertainment venues shall not exceed 85db, and the noise generated by fixed equipment used in commercial business activities shall not exceed 70db. Therefore, if the noise generated by the hotel's exhaust fan exceeds 70 decibels, it may cause disturbance to the normal life of the surrounding residents.
So, if these noises are really exceeded, what should we do about them? First of all, you can file a complaint with the local environmental protection department, and they will investigate it and take appropriate measures. Secondly, we can take some noise reduction measures ourselves, such as setting up soundproof walls or soundproof glass windows around the school canteen, etc., to reduce the impact of noise on the surrounding environment. For the noise generated by the hotel exhaust fan, the noise level can also be reduced by installing *** device.
In conclusion, knowing the noise limits in different places can help us better protect our hearing health while also reducing disturbances to our surroundings. In our daily lives, we should also pay attention to the sound environment around us and take timely measures to reduce the impact of noise.