Examples of blood lead exceeding the standard

In Yangxunqiao Town, Shaoxing County, Zhejiang Province, it was found that some tin foil workshop workers and their children had excessive blood lead. All the 25 workshops involved have been shut down, people with excessive blood lead have been reviewed and treated, and other related after-care work is also in progress.

It is understood that the tin foil business in Yangxunqiao Town has a history of hundreds of years and has also been listed as the intangible cultural heritage of the county. This industry mainly involves five villages: Jiang Tao, Hengshan, Prospect, Tangzhihu and Lianhe. Most of them are traditional family workshops and employ some migrant workers. According to statistics, there are more than 2500 direct employees, mostly from Sichuan and Guizhou, and there are more than 290 workshops in * *.

Since May 28th, nearly 1,000 employees and their children in the tin foil processing workshop have successively gone to Xiaoshan First People's Hospital for blood lead testing. According to the person in charge of Shaoxing County Health Bureau, as of the evening of June 10, there were 26 employees whose blood lead content exceeded 600 μ g/L, and 103 minors under 4 years old103 people exceeded 250 μ g/L. Blood samples have been taken for review. Up to 1 1, 12 people have been sent to Shaoxing county central hospital for lead treatment. In addition, 494 people were found to have blood lead levels of 400-600 micrograms per liter, which required medical observation and nutritional intervention. Experts said that it was found that many minors' blood lead exceeded the standard, mainly because tin foil was mostly produced in family workshops, and children were exposed to lead-containing substances at the same frequency as their parents, while children's lead absorption rate was as high as 42%-53%, about five times that of adults, and their lead removal ability was only 30% of that of adults.

The 25 workshops involved were closed.

According to the person in charge of Yangxunqiao Town, the tin foil operation needs to be "smeared" manually in the production process, which contains lead. In order to reduce the cost, increase the output and increase the lead content of tin foil, some workshops have adopted the operation of "melting tin" and "spraying foil", which has increased the opportunities for employees to absorb lead. There is no relevant national standard or industry standard for tin foil products.

Shaoxing County Environmental Protection Bureau, together with the county CDC, tested the drinking water, air and soil around the workshop, and the test results all met the national standards. The relevant departments of the county formulated the implementation opinions on refining the rectification norms of tin foil processing industry, and began to implement them. By 20 1 1 on the afternoon of June 9, all 25 foil spraying workshops and tin melting workshops had been shut down, and follow-up work such as reexamination and treatment of people with blood lead exceeding the standard was being carried out in an orderly manner.

The government issued a document to guarantee treatment.

Immediately after the incident, emergency headquarters, headed by the main leaders of the county government, was established in Shaoxing County to carry out emergency response work.

The health department identified the county central hospital as the designated medical unit, set up a medical working group headed by the dean, specially designated the area, vacated 48 beds, implemented 20 medical staff, publicized the health knowledge of the screened people with blood lead exceeding the standard, and did a good job in follow-up work such as review and treatment. At the same time, distribute relevant health knowledge publicity materials to all workshop employees.

On June 1 1 1, the local government issued the Policy Opinions on Lead Removal and Nutrition Intervention for Direct Employees in Tin Foil Processing Workshop. According to the relevant diagnosis and treatment standards of the Ministry of Health, Shaoxing County Party Committee and County Government clearly put forward that employees whose blood lead is still greater than or equal to 600 μ g/L should be reexamined for employees whose blood lead is greater than or equal to 250 μ g/L. Nutritional intervention and nutritional subsidies will be given to people with blood lead index of 400-599 μ g/L. The blood lead of some children in Gaohe Town, Huaining County, Anqing City, Anhui Province exceeded the standard, and parents suspected that it was caused by pollution from the local power supply factory. Anhui province attaches great importance to this. Huaining county has taken emergency compulsory supervision measures for local power plants, organized children near power plants to go to provincial hospitals for examination and treatment, and sent staff to hospitals to coordinate rescue work.

According to the person in charge of the Trace Elements Laboratory of Anhui Children's Hospital, since the end of February 20 10, more than 200 children in Nada Xiangchuan Town have been sent to the Children's Hospital of Anhui Province for blood lead examination. According to incomplete statistics, the number of children with excessive blood lead has reached 100.

Huashan, the head of the expert group in charge of this treatment in Anhui Children's Hospital, said that as of 20 1 165438 on the evening of October 5, 24 children had been hospitalized for treatment.

The parents of the children accompanied by the Provincial Children's Hospital told the reporter that the children with excessive blood lead basically came from Xinshan Community, Gaohe Town, Huaining County. "Most residents in the community are former residents of Xinshan Village," said villager Huang Dazhai. There are two power plants near Xinshan Community, and parents suspect that their children's excessive blood lead is related to the pollution caused by the power plants.

After the incident, Anhui Province attached great importance to it. Huaining county quickly set up an emergency work leading group to organize publicity, health, environmental protection, safety supervision, education, power supply and other departments to carry out investigation and handling.

At the same time, local lead-related investigations have also started rapidly. The health authorities in Huaining County concentrated manpower and material resources to conduct urine lead discharge and inspection for all adults within the safe distance of the power plant in the shortest time. Organize minors to go to municipal hospitals for blood lead or urine lead testing. If lead exceeds the standard in the participating population, they should be sent to medical institutions immediately for lead removal treatment according to the doctor's advice; Take urgent and compulsory supervision measures for two power plants whose parents suspect pollution.

As of press time, children in Xinshan community have been organized to be tested for blood lead in Anhui Children's Hospital, and the specific number of local children with blood lead exceeding the standard has yet to be finalized. More than 0/00 people in Tielong Forest Farm, wengyuan county City, Guangdong Province collectively suffered from vomiting, abdominal pain and other symptoms. After investigation by the local disease control department, it was determined that the total number of Escherichia coli in drinking water exceeded the standard, but some villagers did not recognize this conclusion and pointed the finger at the industrial enterprises in the forest farm. 2014 165438+17 October, the reporter of Southern Rural News learned that at least16 children in this forest farm were found to have excessive blood lead, and 3 of them were poisoned by blood lead.

condition

More than one hundred villagers suddenly fell ill.

20 14,141On the morning of October 28th, the reporter of Southern Rural News set off from Wengyuan City and went to Tielong Forest Farm along 353 County Road. Smoke windows are everywhere along the way. There are more than 10 non-ferrous metal plants, cement plants and hazardous waste treatment plants in Tielong Forest Farm with only 5,000 people. At Tielong Health Center, more than 65,438+00 people are receiving intravenous injection. Most of the injections were due to vomiting and abdominal pain. The reporter saw that a woman in her 50 s vomited while giving an injection. Among those who received the injection, two were government workers, and their symptoms were vomiting and abdominal pain.

Previously, there were 137 people with collective vomiting and abdominal pain in Tielong Forest Farm. 201410/on October 28th, the reporter of Southern Rural News learned at the scene that Chen Zhongliang (a pseudonym), who is in his twenties, has had an intravenous drip for the second time. 10 years126 October, dizziness and vomiting occurred, and the symptoms were relieved after hanging a few bottles of water that day. 10 year128 October, I went to the hospital again and lost 6 bottles of water.

Chen Zhongliang said that on October 22nd, 20 14 10, his 8-year-old son came home from school and said he was not feeling well. He went to bed without dinner (after 7 pm) and vomited at midnight. That night, when Chen Zhongliang sent his son to Tielong Health Center, he found that the hospital was overcrowded. Hundreds of people crowded into the hospital. There are many ambulances parked in front of the hospital, and the atmosphere is very tense. Most of them went to see a doctor with symptoms of abdominal pain and vomiting.

On October 28th, 20 14/KLOC-0, Hua Fuqing, director of Tielong Forest Farm, told Southern Rural News that at three or four o'clock in the afternoon of October 22nd, 14/KLOC-0, Tielong School claimed that four or five students were taken to the hospital because of vomiting, and the forest farm immediately reported to the health, food, disease control and other departments in wengyuan county. Hua Fuqing said that the villagers were panicked at that time. "We are very nervous. After all, we don't know why."

1October 29th, 2014 10, Huang Zhiqiang, director of wengyuan county CDC, introduced the relevant situation to the reporter of Southern Rural News. According to statistics,122-24 October, 10, *** 137 people suffered from abdominal pain, 97% from nausea, 35 from vomiting and 4 from fever. 1On the evening of October 22nd, 1 1 critically ill patients were transferred to wengyuan county People's Hospital for treatment, and 12 patients were sent to Weng Town for treatment.

201410124 October, wengyuan county officially announced that the total number of coliforms in drinking water in Tielong Forest Farm exceeded the standard, which was the cause of the incident.

disease control

Non-environmental factors

20 14, 10/0 On October 28th, the reporter of Southern Rural News visited more than 0 villagers in Tielong Forest Farm10, and almost no one recognized the official conclusion. They believe that the enterprises in the forest farm are the culprit, and several people who work in the local government also expressed similar views to reporters. Huang Zhiqiang said that the CDC initially suspected that it was caused by environmental factors. "However, the clinical symptoms of patients do not support this conclusion."

In this regard, Huang Zhiqiang explained: "The health department has carried out rehydration therapy for patients, and the effect is obvious. If it is caused by environmental factors, fluid replacement can not immediately eliminate the symptoms of patients. At the same time, after the government strengthened the disinfection of drinking water, there were no new cases, indicating that the judgment and measures taken by the disease control department were effective. In summary, this is a cluster case of bacterial gastroenteritis caused by drinking water pollution. "

But in the eyes of many villagers in the forest farm, there are still many problems to be solved. Li Ziyi's views represent the views of many forest farm residents. Li Ziyi told Southern Rural News that Tielong Forest Farm is divided into Tielong neighborhood committee and three agricultural and industrial areas (equivalent to village committees). The tap water of Tielong Waterworks is only supplied to Tielong Neighborhood Committee and Longji Work Area, and the residents of Longhua and Longji Work Area basically drink the water from the pit. "It is said that the total coliforms in the water of the waterworks exceed the standard. Why are so many people sick in Longji and Longhua Chemical Industry Zone? " The reporter of Southern Rural News saw in Wengyuan's official summary report that there were 16 people and 34 people in Longji and Longchong Chemical Zone respectively.

Huang Zhiqiang once said that the incident was mainly caused by students drinking raw water in Tielong School. To this, Li Ziyi also has doubts. He told Southern Rural News that there are many adults in 137 patients, so it is impossible for all 137 people to drink raw water. "Drinking water will not get sick even if E.coli exceeds the standard."

According to official statistics, among 137 patients, there are 6 children and more than 30 adults. A reporter saw in the Environmental Impact Report of the Safe Landfill Site of the Hazardous Waste Treatment and Disposal Center in Northern Guangdong released by Sun Yat-sen University in early October-April that the assessment agency conducted an environmental investigation and assessment on the current situation of some surface water and groundwater in Tielong Forest Farm. The test results show that the surface water has been affected by the surrounding domestic and industrial pollution sources, and the pollution types are mainly degradable organic substances and heavy metals, and the total number of bacteria and Escherichia coli in the groundwater seriously exceeds the standard.

Wengyuan officials also said that the residents of the forest farm have never suffered from collective illness, and the residents of the forest farm have been drinking this water. "Perhaps the water in the former forest farm contained too much Escherichia coli."

debate

No enterprise pollution exceeds the standard.

Li Ziyi told the reporter of Southern Rural News that the above problems have been swirling in the hearts of villagers. 20 14 10 3 1, some villagers spontaneously went to Peyo people's hospital and Shaoguan traditional Chinese medicine hospital, a third-class first-class hospital in Shaoguan city, to test "six trace elements in whole blood".

20 1165438 2004+10.7, the reporter of Southern Rural News saw from the test results report issued by Guangzhou Jinyu Medical Laboratory Center that 15 children's blood lead exceeded the standard in this forest farm, including 2 with mild lead poisoning and 2 with moderate lead poisoning1child. However, among adults who have been tested for blood lead (including some who have vomited and abdominal pain), no blood lead is found to exceed the standard.

Although the test report says that "this test item is only used for medical purposes, for clinicians' reference, not as a diagnostic basis for occupational diseases or lead poisoning", the news that someone's blood lead exceeds the standard still makes many villagers in forest farms nervous. There are also villagers in the forest farm who take their children to the hospital for blood lead examination.

In fact, in 20 13 years, children in forest farms were found to have excessive blood lead. 20 14,10/0 On 28 October, villager Xie Qunhui (pseudonym) told Southern Rural News that in June of 20 13, his 8-year-old son suffered from anorexia. So I took my son to the hospital, and the doctor advised my son to have a blood test. The reporter saw from the inspection report he provided that the blood lead content of Xie Qunhui's son had exceeded the standard. Xie Qunhui told the reporter of Southern Rural News that after he told the news to his friends, four people took their children for a blood lead test, and the blood lead of all four children exceeded the standard. At the doctor's suggestion, Xie Qunhui spent more than 1000 yuan to buy medicine for his children in more than a year.

There have been many incidents of children's blood lead exceeding the standard in Shaoguan and surrounding areas, and most of them are caused by waste gas and wastewater discharged by lead-related enterprises (such as battery factories and power plants). The reporter of Southern Rural News saw in the column of "Investment Promotion" in official website of Tielong Forest Farm that there are 17 enterprises in Tielong Forest Farm, many of which are involved in the treatment of non-ferrous metals and hazardous wastes, and at least three of them are lead-related enterprises.

In fact, there have been many environmental accidents in enterprises located in Tielong Forest Farm. 20 1 1 At the end of the year, Guangyu Renewable Resources Development Co., Ltd. comprehensively recovered crude lead and lead-antimony alloy from 70,000 tons of smelting waste residue of non-ferrous metals such as lead and zinc, and put it into production without completion acceptance, which was ordered by Guangdong Provincial Environmental Protection Department to rectify. 20 13,1June, a dismantled battery factory in Tielong Forest Farm was reported to have revived, and wengyuan county Environmental Protection Bureau subsequently destroyed the illegal battery factory.

201165438 On July 7, 2004/kloc-0, Bao Zhonggu, director of the Environmental Monitoring Branch of wengyuan county Environmental Protection Bureau, told reporters that the environmental protection department had not yet mastered the situation that villagers reported that the blood lead of children in forest farms exceeded the standard. Last month, after the collective nausea and vomiting of forest farm residents, the environmental protection department conducted an investigation on local enterprises, and found no cases where enterprises exceeded the standard. In the daily monitoring and inspection by the environmental protection department, the emissions of local enterprises have also reached the relevant national standards. China News Service, Shaoguan, 2065438+February 25, 2002 The number of children with blood lead exceeding the standard in Dongtang Town, Renhua County, Guangdong Province has been increasing recently. As of the 25th, 32 children were found to have exceeded the standard, increasing from the initial 37 to 96.

From 22nd to 24th, the medical staff of Renhua County CDC conducted blood tests on children aged 3 to 14 in five village and Hongxing Village of Dongtang Town. On 25th, the medical staff entered Gaozhai Village. The reporter saw in the local area on the 25th that the medical staff set up a temporary medical station in the village committee compound, and dozens of children lined up with their parents to take blood tests one by one. As of 25 17: 00, there were 32 new cases of high blood lead in Renhua County. At present, 96 children's blood lead exceeds the standard, and 2 children's blood lead content exceeds 200 μ g/L, and the highest is 20 1.2 μ g/L, which is mild lead poisoning.

On the morning of 25th, Zheng Zhentao, secretary of Shaoguan Municipal Party Committee, and Chen Bo, secretary general, led a delegation of leaders from health and environmental protection departments of Shaoguan City to Dongtang Town to learn about the investigation and disposal work on the spot. Zheng Zhentao asked Renhua County and Dongtang Town, as well as health and environmental protection departments, to fully deal with the problem of children's blood lead exceeding the standard, speed up the investigation, verify the lead source as soon as possible, and find out the cause of the problem.

It is reported that national and Guangdong environmental protection experts have arrived in Dongtang town to carry out preliminary investigation; 120 copies of rehabilitation food prepared by Renhua county government according to the requirements of blood lead prevention and control have been distributed to affected families free of charge.

In view of the abnormal blood lead of some children in Dongtang Town, Renhua County of Shaoguan City held a press conference on 20 12 to inform the investigation and disposal, resulting in. A comprehensive expert group composed of experts from Beijing Research Institute of Mining and Metallurgy, Guangdong Environmental Protection Department, Provincial Health Department, Provincial Department of Agriculture, Zhong Kai Agricultural Engineering University, etc. conducted on-the-spot visits, investigations and surveys to factories, mining areas and villages within the jurisdiction of Dongtang Town, and carefully studied and analyzed the monitoring data of air, water, soil and agricultural products within the jurisdiction of Dongtang Town. It is preliminarily determined that the abnormality of blood lead in children is caused by children inhaling lead-contaminated air and eating lead-contaminated food, and it is caused by local enterprises' sewage discharge and nature.

According to the comprehensive expert group, Dongtang Town is located in a large lead-zinc metallogenic belt, with a high background content of heavy metals in the soil. Many villages (Wumi, Xincun, Daping, Tiechang, Tieshiling, etc. The abnormal rate of blood lead is high in the abnormal exposure area of lead in oxide mine (iron hat) in Wumi area and in the abnormal exposure area of lead in Tieshiling oxide mine (iron hat). Although the pollution control facilities in Danxia Smelter located in this area are running normally, and the "three wastes" are discharged up to the standard, there is a dust problem in the transportation of zinc concentrate, which has a certain impact on the abnormal blood lead of children in villages on both sides of the road. Although the pollution control facilities in Fankou Lead-zinc Mine are operating normally and the "three wastes" are discharged up to the standard, some of its waste gas is discharged unorganized, which also has a certain impact on the surrounding environment. The raw materials of four cement plants, such as Jin Xin Building Materials, contain lead, and lead-related enterprises, such as Aoke, Jinlida, Hongda and Jinbaicheng, illegally produce lead, and the absolute amount of lead emitted from waste gas is large, which is the main reason for the abnormal blood lead of children in some villages in the south of this area.

According to reports, on February 17, after the blood lead abnormality of some children in Dongtang Town was discovered, the Guangdong Provincial Party Committee, the provincial government, the Shaoguan Municipal Party Committee and the municipal government attached great importance to it, and Governor Zhu gave instructions to quickly find out the reasons and do a good job in related work. The supervision team of the Ministry of Environmental Protection and the Provincial Environmental Protection Department immediately came to give guidance. Under the leadership of Shaoguan Municipal Party Committee and Municipal Government, Renhua County fully responded. Vigorously carry out health knowledge education on prevention and treatment of blood lead, strengthen rehabilitation guidance for local people, conduct free blood collection and physical examination in batches, and increase the investigation and monitoring of related enterprises. If illegal sewage discharge enterprises are found, they will immediately close down or stop production for rectification.

By the afternoon of 20 12 16, 53 1 person had been tested for blood lead, and 85 of them had been tested for adult blood lead, all of which were within the normal range. 446 children were tested for blood lead, among which 159 children's blood lead exceeded 100mg/L, reaching the standard of high lead level. 1 human blood lead exceeds 200mg/L, reaching the standard of mild lead poisoning. It is reported that in the next step, local party committees and governments will take measures to prevent and control heavy metal pollution in accordance with the recommendations of the comprehensive expert group.