Improper disinfection of swimming pools in Shanghai led to chlorine poisoning, and 9 people were taken to hospital.

/kloc-9 people, including Tao Tao (left), aged 0/2, are still receiving treatment for chlorine poisoning caused by brutal disinfection of swimming pools.

At about 2 1 p.m. the day before yesterday, in the swimming pool of Qiu Jin Garden Club, a fitness center in Jia Wei, located at No.69, Lane 695, Qiu Jin Road, Shanghai, many swimmers developed respiratory anxiety and vomiting symptoms. At least nine people, including two children, were sent to tongji hospital for treatment, including a 27-year-old man who is still in danger.

Some injured people think that the water quality maintainer of a club opened a plastic bucket filled with "strong chlorine essence" when there were still many people swimming, and the contents in the bucket reacted chemically with the air, resulting in "toxic gas". According to professionals, there are strict requirements for adding this substance. Not only can there be no swimmers at the scene, but the staff should also wear anti-pollution clothes, eye masks and gas masks.

Yesterday, Shanghai health and epidemic prevention, safety supervision and other departments have been involved in investigating the incident. Preliminary investigation shows that this incident is a liability safety accident caused by improper operation of staff.

The throat burns like fire.

Professor Cui of Shanghai University is one of the injured swimmers. She pretends to be a swimming expert and a member of the school teacher's swimming team. Professor Cui said that in normal times, she can swim 2000 meters in her swimming pool for half an hour.

The swimming pool is a 25-meter-long standard half pool with a depth of 2.4 meters, belonging to Jia Wei Fitness Club.

There were more than 30 swimmers in the swimming pool at 2 1 the day before yesterday. Professor Cui fell into the water in less than five minutes.

Professor Cui said that at that time, she just took a deep breath and her lungs seemed to explode and kept coughing.

Many injured people recalled the scene and described it as "suffocation and difficulty breathing". Professor Cui adjusted his direction and swam back to the shallow water slowly, coughing violently in the process. Standing in the shallow water, she was still crying.

Mr. Chen, 30, was in Sham Shui Po. He said, "If I keep rowing, I will sink into the water." After he felt that his breathing was not smooth, his legs suddenly became weak. With the strength of his arms, he tried to raise his head and then lay on the shore of the deep water area. Mr. Chen also found that swimmers were escaping from the swimming pool. He pushed out of the water with all his strength. On the way to the foot bath disinfection pool, I felt like a fire burning in my throat.

Tao Tao (pseudonym), 12 years old, came to her grandmother's house after taking the exam. She likes swimming and went to Jia Wei Club without hesitation. /kloc-at the age of 0/2, she can swim freely in deep water and shallow water.

Yesterday, Tao Tao told reporters that her eyes, nose and throat seemed to have a sudden fever. She said, like drowning.

It is reported that people who came out of the swimming pool at that time felt stinging eyes, burning throat and nausea and vomiting.

The wounded were once hung up.

After the incident, the injured were very dissatisfied with the emergency mechanism of Jia Wei Club. Some injured people said that there were two lifeguards in the swimming pool, only one was on the scene at the time of the incident, and the staff did not take any diversion measures.

Some injured people said that after they escaped from the swimming pool, they asked the club to send everyone to the hospital for examination and treatment, but the other party did not cooperate at first, so the injured people had to wait in the club lobby until they were sent to the hospital, "being dried 1 hour".

"We middle-aged forget it. What should I do if my child has sequelae? " Some family members questioned.

Including two children aged/kloc-0 or above, 9 people were sent to tongji hospital on Monday, and the hospital opened a green channel for rescue.

A 27-year-old man from Wang Xing is seriously ill. He was thrown out of the swimming pool. Wu Xianzheng, director of the emergency department of tongji hospital, said, "After CT examination, Mr. Wang found diffuse edema in both lungs and 80% burns in the lungs. Breathing is very difficult. Later, artificial respiration was performed. We used tracheal intubation and ventilator to assist breathing. " Wu Xianzheng said, "He has a lot of respiratory secretions and has to do tracheotomy. Now the patient is in critical condition. "

The family said that Mr. Wang had been exercising regularly before and was in good health. There are no other questions. Yesterday, the hospital has issued two critical notices.

At present, except for Mr. Wang, who is not out of danger, the other wounded are in stable condition. Of the two children, Tao Tao is in good spirits, while another boy, Ze Ze (a pseudonym), still feels unwell.

The hospital said that according to the "* * * gas" reflected by the injured, the incident may be related to sterilized water or chlorine in the swimming pool.

Trouble caused by a plastic bucket?

Why is there such an accident?

Many injured people insisted that a plastic bucket filled with "strong chlorine essence" was a "poison source". This chemical is used to bleach pollutants in swimming pools to disinfect water and keep it clean. Many injured people said that when there were still many people in the swimming pool, a man in his fifties began to "disinfect" and someone saw him open the plastic bucket and start working.

According to the Hygienic Standard for Swimming Places organized by the Ministry of Health and the State Sports General Administration, the concentration of free residual chlorine in swimming pool water (including fresh water continuously supplied by children's shallow pools) should be kept at 0.3-0.5 mg/L. The chlorine addition in swimming pool water (including fresh water continuously supplied by children's shallow pools) is calculated and determined according to the free residual chlorine in pool water of 0.3-0.5 mg/L. ..

A lifeguard of Jia Wei Club, who asked not to be named, said that "strong chlorine essence" is a common disinfectant in swimming pools. It is powdery and will not volatilize when isolated from the air.

The lifeguard said that it should be illegal to disinfect chlorine water at that time. This barrel has a lid, which can prevent the gas from evaporating if the lid is closed. According to its disclosure, Jia Wei Swimming Pool is disinfected three times a day. Before the opening in the morning, at noon and after the use of the swimming pool on the same day, the usage is also limited, and the residual chlorine content in the water does not exceed 0.5 mg/L.

"Disinfection should be carried out without people, and no one is allowed." Lifeguards revealed that the reason is that strong chlorine essence should be put into water in time and cannot be exposed to the air.

How to operate normal disinfection? Mr. Shi, the person in charge of the relevant departments of Shanghai Swimming Pool, said that chlorine-containing disinfectants used for disinfection of swimming pools will cause direct harm to the human body, mainly to the skin and respiratory tract. During disinfection, not only can there be no swimmers at the scene, but the staff also need to wear anti-pollution clothes, eye masks and gas masks. He said that despite the protection, pharyngitis, bronchitis and pneumonia are still occupational diseases for workers in this industry.

He revealed that according to the regulations, chlorine-containing disinfectants are not allowed to be directly poured into the pool, because chlorine will be oxidized quickly when it meets water, which will seriously lead to an explosion. In general, chlorine-containing disinfectants are packed in closed barrels and pumped into swimming pools.

The wounded have a lingering fear

Yesterday, at the entrance of the clubhouse, the staff posted a notice that said "disinfection of swimming pools will be suspended in summer". The clubhouse has been closed and relevant personnel of the health department are investigating.

"At that time, the staff's disinfection behavior was to remind swimmers to finish early, so that the club could also call it a day." Professor Cui believes.

Professor Cui hopes to terminate his spending of 6.5438+0.5 million yuan in advance and enjoy a membership card with a five-year service life. "After the accident, everyone has a lingering fear." Professor Cui said.

More injured people expressed their dissatisfaction with the clubhouse. The injured Mr. Weng said that he had been exercising here for a long time. The temperature of the swimming pool is very low in winter, and there is often no hot water when taking a bath. The closing time of the sauna room in a year is much longer than the opening time. The injured said that the relevant person in charge of the club did not visit the injured in the hospital after the incident.

At present, Shanghai health and epidemic prevention, safety supervision and other departments have been involved in investigating this incident.