Nanjing Gulou District, a construction site night construction noise exceeds the standard area ecological environment bureau： only coordination can not be punished

The crisp "moo, moo" sound combined with the low "dong, dong" sound, the construction of Wutaishan Station of Metro Line 5 on Shanghai Road in Nanjing is in full swing, but it is the dead of night, and the nearest residential area is less than 30 meters. Recently, many surrounding residents told reporters that the subway station was brutally constructed at night and was often kept awake by loud noise.

The reporter visited this construction site for several days and found that after 10 o’clock in the evening, the muck was still being removed and the steel structure bracket was unloaded. In addition to the roar of the machine, there was a violent knock from time to time. Under the decibel instrument test, the highest instantaneous decibel is close to 100 decibels. The reporter learned from the ecological environment department that the construction site has the qualification for examination and approval of night construction, but the state stipulates that the noise decibel of night construction should not be higher than 55 decibels. When the reporter tried to contact the person in charge of the construction site, he was hung up several times.　

Journalist visit

Working in the dark, the noise at night exceeds 95 decibels.

The reporter saw at the scene that at about 10: 30 in the evening, muck trucks began to wait in line near the construction site, and an ultra-long trailer carrying steel structure brackets was slowly pouring into the construction site. Because the lighting facilities were not turned on at the construction site, the staff worked almost in the dark environment with the help of the lights on the crane, and unloaded the bracket from the truck. In addition to the roar of mechanical engines, there was a metal crash from time to time at the scene. The noise curve can be recorded with the noise test software in the mobile phone, and the highest value reaches 98 decibels. Then the reporter found a professional decibel meter to test industrial noise. On the opposite side of the road about 25 meters away from the construction site, the average decibel was about 70. After the machine roared, the number jumped to 80, and the highest volume when there was a crash was over 95 decibels.

At about 12 o’clock at night, the staff on the construction site began to uncover the green dust cover covering the mound, and the muck trucks lined up to load the muck. The reporter tested at the intersection of Shanghai Road and Guangzhou Road, about 30 meters away from the construction site. With each loading of the muck truck, the noise emitted exceeded 82 decibels, and the average sampling value for a period of time exceeded 65 decibels. According to nearby residents, such construction often goes on all night. The nearest residential building to the construction site is no more than 30 meters in a straight line.

The environmental department can only coordinate and cannot punish.

The reporter found on the night construction list of Nanjing Ecological Environment Bureau that the construction name of the project is Haishu Station and Wutaishan Station on Metro Line 5, and the approved night construction scope is from June 2 to 7. The reporter inquired about the qualification of night construction through the complaint telephone number 12369 and got a positive answer. Regarding whether it is necessary to control noise during night construction, the other party said that if noise disturbs people, it can apply to the duty department of Gulou District Ecological Environment Bureau for on-site inspection, and at the same time, it can ask inspectors to reply.

The reporter learned on the phone that the environmental department requires the night construction site to approve its continuous construction time day and night for no more than a certain period of time, and the principle of approval interval is 3 days, which is called "four stops and three stops" and "two stops and three stops". That is to say, continuous night construction is not allowed, and the shutdown time period is 3 days. Concrete pouring construction, a continuous construction time shall not exceed 48 hours. In the 12369 telephone call, the staff also said that in the past, the ecological and environmental departments had the right to punish noise exceeding the standard, but now they can only coordinate.

On June 6th, under the urging of the reporter, a staff member of the Ecological Environment Bureau of Gulou District replied to the reporter by phone, saying that there were many complaints about night construction at this site, and the staff also went several times, but the phone number of the person in charge of the site was always disconnected. "We can only go to the scene to coordinate with them, and they can’t do anything if they don’t listen. It is recommended that you either go to a letter and complain that the noise exceeds the standard, or find a third-party testing agency to test the noise, and the authoritative organization will issue a report before considering compensation or urging the installation of sound insulation equipment. "

The reporter’s phone was hung up and the complaint phone was not answered.

Outside the seaway construction enclosure of Metro Line 5, there are a series of public signs, including the prevention and control of dust pollution in the construction site, civilized construction signs and construction nameplates. Among them, the column of noise control in the bulletin board reads: take control measures for noise sources and control them within the national standards.

When the reporter called Mr. Lu, the official in charge of civilized construction in the bulletin board, the other party said that if the citizen complained, he would explain it. If the reporter did not accept the telephone interview, he needed to contact the subway building himself. When the reporter asked him for contact information, the other party had hung up. Subsequently, the reporter called several project leaders on the construction project information bulletin board one by one to make public calls, and the other party said that they would not accept the interview. Another person in charge reported the telephone number of a contact person of the subway company to the reporter, but the reporter called the other party and said that he had dialed the wrong number first, and then said that this question should be asked to other relevant persons in charge, so he could not answer it. The complaint telephone number published on the bulletin board of civilized construction site was dialed in the past and no one answered.

Residents complain

Can’t sleep for days

Can the construction be gentle?

Mr. Chen, who lives in Wutai Garden, told reporters that the subway station has been under construction day and night recently, which has greatly troubled nearby residents. "The subway is a key municipal project. It is understandable if it needs to be constructed at night, but Wutai Mountain has a special environment and the construction site is very close to several residential areas. It is even more necessary to strictly control the noise." Mr. Chen said: "Many times we feel that the construction operation is very barbaric. The muck removal often throws stones on the vehicle without any scruples, and some metals are like being thrown from a height when transported. At night, the shouts of construction workers are endless, and I feel that there are no measures to control noise from management. "

As the college entrance examination and the final exam are approaching, many parents living nearby are also anxious because their children are troubled by construction noise. Some residents complained at the first time, but the results were minimal.

The reporter learned that when the environmental noise reaches 40 decibels, it begins to disturb sleep, and when it reaches 60-89 decibels, the interference to the autonomic nervous system increases, making it difficult to obey. 85 decibels is a general requirement for hearing protection. If it exceeds 90 decibels, it will significantly damage the nervous system and cause irreversible hearing organ damage.

Relevant regulations

Night construction requires noise.

No more than 55 decibels

The reporter learned that according to Article 30 of the Law on the Prevention and Control of Environmental Noise Pollution in People’s Republic of China (PRC), it is forbidden to carry out construction operations that produce environmental noise pollution at night in areas where noise-sensitive buildings are concentrated in urban areas, except for emergency repairs, emergency rescue operations and continuous operations due to production process requirements or special needs. If continuous operation is necessary due to special needs, it must be certified by the relevant competent department. Noise generated by the construction site at night is not allowed to exceed 55 decibels.

An industry insider told reporters that in different stages of construction, the relevant regulations have different requirements for noise. The noise in the pile foundation construction stage is relatively large, and the standard is slightly higher than 85 decibels. However, night construction is strictly prohibited. In other processes, the noise requirements in earthwork stage and structure construction stage are different, but the construction standard at night is unified to not exceed 55 decibels. "General construction site noise control will arrange some processes that generate little noise at night, and the noise generated in actual construction is also related to the workers’ operating specifications." The reporter learned that according to the Law on the Prevention and Control of Noise Pollution, the construction unit and the construction unit should arrange the prevention and control expenses of noise pollution according to the construction needs of the construction project, and the construction unit should urge the construction unit to discharge the generated noise up to the standard.