Lab test demonstrates: is smog better than smog?Release time: 2015-05-21 10:25
From June 1st this year, the new version of the "Beijing Regulations on Smoking Control" will come into effect. The main focus of the smoking control regulations is to summarize in one sentence that smoking is not allowed in places with "tops", such as elevators, corridors, stairwells, and bathrooms. Under the new regulations, the previously established "smoking rooms" and "smoking areas" will also be banned and become history.
Not only that, penalties are also specified in the upcoming Regulations. If an individual smokes in a no-smoking place or in a waiting line, a fine of 50-200 yuan will be imposed; the place operator or manager will be fined 2,000 yuan to 10,000 yuan in violation of relevant regulations. In addition, the maximum penalty for setting up a smoking area is 30,000 yuan.
Street survey: Supporting the "most ban on smoking orders" is concerned about the difficulty of implementation. So what do you think of this upcoming new tobacco control measure? Our reporter launched a micro-survey on the streets of Beijing.
Lab verification: Haze is better than haze?
One of the biggest changes in the smoking ban was a complete ban on smoking indoors. So how big is the harm of indoor smoking? Recently, there is a saying that indoor air pollution caused by smoking is more serious than the haze days, do you believe? For this reason, our reporter also found professional institutions to carry out experiments to verify.
The reporter came to the Indoor Environmental Testing Center of Tsinghua University and simulated a smoking meeting in a conference room of about 40 square meters.
Before the experiment, the indoor PM2.5 concentration was 0.22 mg per cubic meter. Then the testers started smoking, and the average PM2.5 concentration reached more than 200 after 10 minutes, which was ten times that before smoking.
At the same time, the reporter recalled the test process data and found that within a long period of time, the value of PM2.5 can reach 300-400, and some charts show that the value even reached 1.85, that is, the PM2.5 concentration reached more than 1800, which is higher than usual We think that the severely polluted weather is several times higher. And this is only the value measured under the experimental condition that a smoker smokes a cigarette.
Laboratory verification: smoking harmful substances can cause cancer?
These harmful substances in smoking enter our body in the form of haze. There are many ways to say that smoking is harmful to health. One of them is that smoking causes cancer. In this regard, researchers from the Institute of Zoology, Chinese Academy of Sciences, also passed Long-term tests prove this.
We asked a tester to spit out the smoke on a clean, wet paper towel. Even if smoking a cigarette with a long filter tip, just spitting out three cigarettes, a noticeable dark yellow stain was left on the wet tissue. These substances were either inhaled by the smoker or exhaled into the air, forming our previous experiments. The so-called "haze". Scientific research shows that tobacco combustion can form up to more than 5,000 compounds, of which more than 70 are carcinogenic. So if these substances enter the body, can they cause cancer?
Guangguang Zhou, a researcher at the Institute of Zoology, Chinese Academy of Sciences, has long been engaged in the research of the mechanism of cancer caused by smoking. In the past few years, he has been looking for the relationship between smoking and cancer.
The research team led by Zhou Guangyi is in such a professional laboratory, using animal experiments to carry out research on the causes of smoking carcinogenesis.
In the experiment, a special black mouse was selected which is easier to simulate the mechanism of lung cancer formation. The staff selected some harmful substances produced by smoking and fed the black mouse. After a period of time, comparing the CT results of the lungs of the fed black mice with healthy mice, it can be seen that the lungs of the black mice produced cancerous tissue.
In the little experiment just now, we saw that the smoke from the smoker made the tissue dirty. For the same reason, if you smoke for a long time, your lungs will become very dirty, so what will it look like? We will tell you a true "smoke lung" through the doctor's endoscope. Let me remind you that the following pictures may cause discomfort.
This set of endoscopic lung images was recorded by Korean doctors when they saw their patients. Due to long-term smoking, there will be many black spots on the lungs. And experienced doctors can immediately determine the age of a patient's smoke based on the color of the lungs.
Through the high-definition camera, the doctor gave a contrast image of the lungs of a non-smoker, a 15-year smoker, and a 30-year smoker. Among them, the non-smoker's lungs appear bright pink and look vibrant.
In a 15-year-old smoker's lung image, the lungs were covered with large black spots due to the long-term deposition of carcinogens such as tar.
The 30-year-old smoker's lung image is even more shocking. The entire lung is like black ink, and even the internal tissues are full of carcinogens. The doctor said that although the patient is not yet symptomatic, he has actually developed lung cancer.
"No smoking ban": healthier for smoking bans. As doctors say, once the lungs are damaged by smoking, it will be difficult to recover. Therefore, the only way to ensure lung health is to quit smoking. The implementation of the smoking ban is not only for tobacco control, but also for everyone's health.
Zhang Jianshu, president of the Beijing Smoking Control Association, was one of the drafters of the "Most Prohibited Smoking Order." He said that the primary purpose of the upgrade of many smoking bans in the smoking ban is to further protect the health rights of non-smokers.
Zhang Jianshu, President of Beijing Smoking Control Association: Our Beijing survey shows that there are 4 million smokers and the smoking rate is 22.8%. In the past, the convenience of a smoker may be considered. In some places, a smoking room was left for him, but it turns out that due to air conditioning Air flow, it cannot solve the problem, it will still enter the entire cycle and cause harm to people. Moreover, there are many data on the harm of women and children to second-hand smoke, which proves that it is very harmful to human health.
Therefore, in addition to comprehensively banning smoking in public indoor places, the smoking ban defined by the “Beijing Smoking Control Regulations” issued this time even includes some outdoor areas, especially for special places such as maternal and child health centers. These more stringent tobacco control measures have also undergone multiple investigations and considerations.
Zhang Jianshu said that in recent years, due to the gradual deepening of the harm caused by smoking to health, strict tobacco control work has also received support from many smokers.
Zhang Jianshu, president of the Beijing Smoking Control Association: We are an advocacy law, and more mainly discouragement. Punishment is not the purpose. We just want everyone to form a civilized and healthy lifestyle. Everyone has a good living environment.
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