Noise standards for industrial enterprises, noise standards for factories

There are three types of noise standards for industrial enterprises:

1. The first category: 60 dB during the day and 50 dB at night, suitable for residential, commercial and industrial mixed areas;

2. The second category: 65 dB during the day and 55 dB at night, suitable for industrial areas;

3. The third category: 70 dB during the day and 55 dB at night, suitable for both sides of the road traffic arteries in the city, and the areas on both sides of the inland waterway through the urban area.

The normative use of noise is noise, and from a physiological point of view, any sound that interferes with people's rest, study and work, as well as the sound that people want to hear, that is, unwanted sound, is collectively referred to as noise. Noise pollution occurs when noise has an adverse effect on people and the surrounding environment.

Noise is a subjective evaluation criterion, that is, all sounds that affect others are noise, even if it is **.

From the perspective of environmental protection, all "unwanted sounds" that affect people's normal study, work and rest, and in some occasions, are collectively referred to as noise. For example, the sound of machine burning, the sound of various means of transportation, the noise of people and various sudden sounds, etc., are all called noise. With the development of industrial production, transportation, urban buildings, as well as the increase of population density, the increase of household facilities (televisions, etc.), environmental noise has become increasingly serious, and has become a major public nuisance polluting the human social environment.

From a physical point of view, noise is an irregular mechanical wave.

In physics, noise refers to all irregular signals (not necessarily sound), such as electromagnetic noise, thermal noise, radio transmission noise, laser noise, fiber optic communication noise, camera image noise, etc.

Legal basis

Law of the People's Republic of China on the Prevention and Control of Environmental Noise Pollution

Article 15 Enterprises and public institutions that produce environmental noise pollution must maintain the normal use of facilities for the prevention and control of environmental noise pollution; If the environmental noise pollution prevention and control facilities are dismantled or idle, they must be approved by the local people's ** ecological and environmental department at or above the county level where they are located.

The noise standard of industrial enterprises refers to the standards that need to be followed by the noise generated by industrial enterprises in the production process. According to the relevant national laws and regulations, the noise generated by various industrial enterprises in the production process should comply with the following standards:

1.Noise standards for industrial areas and outside buildings: no more than 65 decibels during the day and 55 decibels at night.

2.Noise standards in industrial areas: no more than 75 decibels during the day and 70 decibels at night.

3.Noise standards in residential areas around industrial enterprises: no more than 55 decibels during the day and 45 decibels at night.

The above standards are formulated according to different environments and situations, and industrial enterprises should strictly abide by them to reduce noise pollution to the surrounding environment and residents. If the noise is exceeded, the relevant authorities will deal with it and require the company to take measures to reduce the noise.

Noise Pollution Standard The noise pollution standard is between 45 dB and 55 dB, and the volume above this standard is considered a noise nuisance. Allowable range of environmental noise in China: The noise shall not exceed 30 decibels from 22 o'clock at night to 6 o'clock the next day, and shall not exceed 40 decibels from 6 o'clock to 22 o'clock during the day.

The indoor standard for residential buildings in China is 10 decibels lower than the ambient noise standard in the area where they are located, because there are more small factories in Chinese cities that are close to the homes.

Legal basis: Law of the People's Republic of China on the Prevention and Control of Environmental Noise Pollution

Article 4 The prevention and control of environmental noise pollution shall be included in the national economic and social development plan, and countermeasures and measures for the prevention and control of environmental noise pollution shall be adopted.

Article 5 When formulating plans for the construction of cities and villages and towns, local people at all levels shall reasonably divide functional areas and lay out buildings, structures, roads, etc., to prevent environmental noise pollution and ensure the quietness of the production environment.

Legal analysis: The noise standard for workplaces in the production workshops and workplaces of industrial enterprises is 85 decibels. When the existing industrial enterprises fail to meet the standards temporarily after efforts, they can be appropriately relaxed, but not more than 90 decibels For the types of work that are exposed to noise for less than eight hours a day, the noise standards can be relaxed accordingly according to the types and conditions of the enterprise.

Legal basis: "Environmental Noise Emission Standards for Industrial Enterprises" Article 5 The noise standard for the working places of the production workshops and workplaces of industrial enterprises is 85 decibels (a). When the existing industrial enterprises temporarily fail to meet the standards after their efforts, they can be appropriately relaxed, but shall not exceed 90 decibels (a).

GB12348-2008 is an industry administrative regulation, which is an environmental noise emission standard formulated for the prevention and control of environmental noise pollution, the protection and improvement of the living environment, the protection of human health, and the promotion of sustainable economic and social development, which is jointly issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China. Its scope of application is: it stipulates the environmental noise emission limits and measurement methods at the boundary of industrial enterprises and fixed equipment, and is applicable to the management, evaluation and control of noise emissions of industrial enterprises.

Organs, institutions, organizations and other units that emit noise from the external environment shall also be implemented in accordance with this standard. The relevant grades are as follows: 1. Class, 55db(a) during the day and 45db(a) at night; 2. Class, 60dB (a) during the day, 50dB (a) at night; 3. Class, 65dB(a) during the day, 55dB(A) at night; 4. Class, 70dB (a) during the day and 55dB (A) at night.

Noise standards for industrial enterprises: The noise standard for the workplaces of production workshops and workplaces of industrial enterprises is 85 decibels. When the existing industrial enterprises temporarily fail to meet the standards after efforts, they can be appropriately relaxed, but shall not exceed 90 decibels.

Noise Hygiene Standards for Industrial Enterprises of the People's Republic of China

The noise standard for workplaces in production workshops and workplaces of industrial enterprises is 85 decibels. When the existing industrial enterprises temporarily fail to meet the standards after efforts, they can be appropriately relaxed, but shall not exceed 90 decibels.

1. Classification of industrial noise.

1. The way the sound source is generated.

1) Aerodynamic noise is generated by gas vibration. Gas disturbances caused when there are eddy currents in the gas, or when a sudden change in pressure occurs. For example, the noise generated by ventilators, blowers, air compressors, and high-pressure gases.

2) Mechanical noise is generated by mechanical impact, friction and rotation. Such as the noise emitted by crushers, ball mills, chainsaws, machine tools, etc.

3) Electromagnetic noise is caused by the vibration of electrical components caused by magnetic field pulsation and power supply frequency pulsation. Such as the noise generated by generators, transformers, and relays.

2. Noise properties.

1) Steady-state noiseIf the sound or noise remains constant for a long period of time, this kind of noise is called steady-state noise.

2) Impulse noise: If the noise changes over time, it is called impulse noise. This type of noise is more harmful to the human ear.

Second, the hazards of industrial noise.

1. Affecting rest and work, people require environmental noise to be less than 45db when resting, and if it is greater than 63 8db, it is difficult to fall asleep. Noise distracts people's attention, is easy to get tired, and responds slowly, which affects work efficiency and makes work errors.

2. The adaptability of the hearing organs is limited, and long-term work under strong noise will cause hearing fatigue and hearing loss. If repeated effects of strong noise occur over many years, organic lesions will occur in the ear organs, resulting in noise-induced deafness.

3. The noise caused by cardiovascular system diseases can make the sympathetic nervous system tense, which is manifested as rapid heartbeat, irregular heartbeat, blood pressure fluctuations, and positive electrocardiogram test increases.

4. Effect on the nervous system.

Noise causes neurasthenic syndrome such as headache, dizziness, insomnia, dreaminess, memory loss, etc. The positive detection rate of neurasthenia increases with increasing noise intensity. In addition, noise can cause gastric disorders and reduced vision.

When the noise exceeds the sound of the alarm signal of the production control system, the alarm sound signal is drowned out, which is easy to lead to accidents.

Legal analysis: "Environmental Noise Emission Standard for Industrial Enterprises" GB12348-2008 is an industry administrative regulation, which is formulated to prevent and control environmental noise pollution, protect and improve the living environment, protect human health, and promote sustainable economic and social development, and is jointly issued by the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China.

Legal basis: Law of the People's Republic of China on the Prevention and Control of Environmental Noise Pollution

Article 1 This Law is enacted for the purpose of preventing and controlling environmental noise pollution, protecting and improving the living environment, safeguarding human health, and promoting economic and social development.

Article 2 The term "environmental noise" as used in this Law refers to the sound generated in industrial production, construction, transportation and social life that interferes with the surrounding living environment. "Environmental noise pollution" as used in this Law refers to the phenomenon that the environmental noise generated exceeds the environmental noise emission standards prescribed by the state and interferes with the normal life, work and study of others.