What is the standard of residential noise in China?

Indoor noise standards can be divided into residential and non-residential types. The indoor noise standard of residence is formulated according to the requirements of quiet life and the environmental noise standard of the region, with reference to the window conditions of residence, and generally should not be lower than the environmental noise standard of the region by 20 decibels. The indoor standard of residential buildings in China is set to be lower than the regional environmental noise standard 10 dB, because there are many small factories close to residential buildings in China. The indoor noise standard for non-residential houses is stipulated according to the purpose of the room.

The current national standards in China are "Acoustic Environmental Quality Standard" GB 3096-2008 and "Environmental Noise of Social Life" GB 22337-2008.

20 18 noise pollution standard for residential buildings: the fourth paragraph of article 5 of the national method for measuring environmental noise in urban areas stipulates that when measuring noise indoors, the indoor noise limit value is lower than the standard value of 10 dB in this area.

: control method

In China, the relevant standards stipulate that the noise in residential areas should not exceed 55 decibels during the day and should be lower than 45 decibels at night. Some cities in the world have issued restrictions on traffic noise. In order to prevent noise, Professor Ma, a famous Chinese vocalist, summarized and studied the hazards and standards of various noises at home and abroad, and put forward three suggestions:

In order to protect people's hearing and health, the allowable value of noise is 75~90 decibels.

(2) Ensure conversation and communication, and the allowable value of environmental noise is 45~60 decibels.

③ It is suggested that the sleep time should be 35~50 decibels.

Supplement:

①30~40 decibels is an ideal quiet environment.

②70 decibels will affect the conversation.

③ Living in an environment above 90 decibels for a long time will seriously affect hearing and cause neurasthenia, headache, hypertension and other diseases.

④ If suddenly exposed to noise as high as 150 dB, the eardrum will rupture and bleed, and both ears will lose hearing completely; In severe cases, it will cause heart vibration and lead to death.