complain

Governance departments have a division of labor, and noise complaints should be "found at the right door"

According to national standards, the noise in residential areas and cultural and educational areas should not exceed 50 decibels during the day and should be lower than 40 decibels at night. Generally, the mixed commercial and residential area does not exceed 55 decibels during the day and 45 decibels at night. On both sides of the traffic trunk road, the noise decibel shall not exceed 70 during the day and 55 at night.

At present, it has entered the examination season, and the students have entered a tense preparation. All kinds of noise have caused a lot of trouble to candidates and parents. However, many people don't know what kind of noise should be reflected in which departments. ?

During the visit, Mr. Li, who has just moved into a new house, is currently suffering from decoration noise, but the complaint is invalid. He told reporters that he had bought a duplex house before and had delivered it for more than half a year. A week ago, after finishing the renovation, Mr. Li and his family moved into the new house. As a result, after moving into the new house, they were greeted by the "white and black" decoration "Sonata", and the day of sleeping late on weekends became a luxury.

In this case, Mr. Li repeatedly complained to the property management of the community, but the results were minimal. "After complaining to the property management, the property management staff also stopped it, but it basically had no effect. It was quiet for a while, and the sound of electric drills and smashing walls appeared intermittently. "

It is understood that environmental noise can be roughly divided into four categories: industrial noise, construction noise, traffic noise and social life noise. According to the different sources of noise, the departments responsible for handling it are also different. In addition to the Environmental Protection Bureau, urban management, public security, construction and other departments also accept different types of noise complaints.

■ Reminder

Night construction needs "noise control" if there is a certificate.

In the previous visit, Mr. Fang had doubts. "Before the construction site downstairs in my house was under construction, construction continued overnight. The reply after the complaint was that the other party obtained the night construction permit. " Mr. Fang is difficult to understand. "Does having a night construction permit mean that I can only be disturbed by noise?"

Tianfu Morning Post reporter recently contacted Chengdu Construction Committee. The staff of the relevant departments said that even if they have applied for a night construction permit, if there is a phenomenon that night construction noise disturbs people, citizens can still call the Chengdu Construction Committee's 24-hour duty telephone number 866325 15 to reflect the situation. Once verified, the construction unit will be required to carry out rectification, adopt equipment with low noise and small vibration, and pay a return visit to the rectification effect. The construction sites that are not rectified and repeatedly complained will be dealt with strictly.

According to the spirit of the relevant documents of the Ministry of Housing and Urban-Rural Development, if continuous operation is required due to technological requirements or special needs, and night construction is really necessary, a night construction permit must be obtained. Whether it is road and rail transit projects or other construction projects to solve people's travel difficulties, according to the Management Measures for Night Construction of Construction Projects in Chengdu, night construction can only be carried out after strict night construction permit procedures.

It is reported that the issuance of night construction permits in the central city is becoming more and more strict. In 20 15, the number of issues decreased by 322, a year-on-year decrease of 13%. Especially during the peak season of middle school and college entrance examination from June 1 day to June 15, the construction permit at night is completely stopped, and the noise operation is completely prohibited during the day.

According to the regulations, night construction can only be carried out after the approval of night construction permit. Even so, the construction unit still needs to use equipment with low noise and small vibration, and take certain preventive measures against the noise generated in the construction process. Otherwise, it will be required to rectify or even punish.

Complaint channel

1

At the enterprise boundary, if the noise generated by its production disturbs people, you can complain to Chengdu Environmental Protection Bureau.

Complaint Tel: 12345

2

Traffic noise and social noise generated by various noise nuisance activities, firecrackers, horns and entertainment places spontaneously organized by the masses may complain to the public security and cultural departments.

Complaint Tel: 1 10

three

You can complain to the Chengdu Urban Management Committee about the social life noise and construction noise caused by the use of loudspeakers or other high-noise methods to attract customers and organize entertainment, gatherings and other activities in public places such as urban streets and squares.

Complaint telephone number: 123 19

four

If the night construction permit has been applied for in the five districts of downtown Chengdu, but the night construction noise still disturbs people, you can complain to the Chengdu Construction Committee.

Duty phone: 866325 15

■ Lack of knowledge

Techniques to reduce noise

Plant Wall

Plants have certain reflection and absorption of sound waves, while single plants or sparse plants have little reflection and absorption of sound waves. When plants form a closed community, they can effectively reflect sound waves, just like a sound barrier. Planting leafy green plants on the balcony can not only beautify the environment, but also reduce noise. Some data show that a 40-meter-wide forest belt can reduce noise pollution by about 10- 15 decibels.

Sound insulation curtain

In order to sound insulation, cinemas and high-end hotels will use heavy soundproof curtains to reduce noise pollution. Some data show that its sound insulation capacity is about 20 decibels.

Double glass sound insulation

The double-layer glass has a sound insulation effect of about 40%, and the air interlayer in the middle has a shock absorption effect, which weakens the vibration transmitted to the inner glass and reduces the noise in the noise transmission path.