Many high -priced hot springs this health "signboard" may not be good for the body

Bubble hot spring is really comfortable.

But a while ago, a friend recommended a hot spring link. I opened it and almost shocked the chin.

When promoting its own hot spring, the merchant wrote: "XXX Hot Spring is a rare global hot spring".

Searching "” 在 在 "on the Internet also has a lot of relevant information, and most of them are expensive, and it costs thousands of yuan.

Is it good to soak "泉"?益 Is it good to or harmful to the body? Today, let's talk about what kind of "一" is.

Let's talk about the conclusion: 放 is radioactive, and it is harmful to the body after inhaling the human body.

Therefore, the hot springs with the selling point of "点" are actually receiving IQ taxes.

原 is by far the largest rare gas element of atomic volume. It is one of the natural existence and density gas on the planet.

(The radium be declining above into a 氡 eventually becomes lead. Source: British Health Protection Agency [2])

The 氡 on the earth is derived from the decline of natural radioactive substances in the crust. During the fade, radioactive gases are generated (continuing α -decay release α rays), and then rises along the crust cracks, and finally reaches the ground.

The reaching the ground will continue to decline in the air, transform more radioactive substances (gardenia), and eventually become a stable, no radioactive lead.

In fact, the place where people have the most contact with 触 are in the residential and workplace.

Because 氡 is a gas, colorless and tasteless, so we generally can't feel its existence, but its harm to the human body is real.

(This picture shows how to enter the room from underground, Source: American Centers for Disease Control and Prevention [3])

For example, it can be directly inhaled by the human body, forming an internal irradiation of delicate alveolar! Therefore, 致 is also one of the culprits that lead to lung cancer! (WHO has announced the carcinogenic substances in the human environment)

"From the perspective of global perspective, the ghost is one of the culprits of lung cancer and one of the few environmental carcinogens." A set of research data from the US CDC and the Environmental Protection Agency shows [4]:

(Picture source: US Centers for Disease Control and Prevention, U.S. Environmental Protection Agency [5])

Every year, about 21,000 people die in the United States to die caused by lung cancer caused by 氡;

Restrive among all risk factors that cause lung cancer (second only to smoking);

Ranking first among all family risk factors that cause death, far higher than drunk driving, falling, drowning and fire;

The lung cancer caused by 起 causes about $ 2 billion in medical expenses and economic losses each year.

In addition, there is another characteristic: the density is particularly large.

Glutiny is one of the heaviest gas in nature. The density is equivalent to 7.5 times that of air. Therefore, it is particularly easy to gather indoors in people's homes and not easily discharge. Especially in low -lying places, such as mine and basement, they are easy to enrich.

Once 内 Once we enter our room, as long as the windows are not opened on the ground, it is not easy to be discharged. And because the 越 is heavier, the closer to the ground concentration, the higher the ground. Therefore, in the same environment, the harm to children is more serious than adults [6].

We often hear a sentence: Do not aside from dosage and toxicity.

Indeed, some material high doses are poison, but low doses can cure diseases and save people (such as arsenic).

But I am afraid it is really not.

So far, evidence that has not been found in human health has been found.

For 氡, it is currently considered that it has no safety threshold. In other words, any concentration is harmful to the human body, but the harm is different, so the less we come into contact with it [7].

In 2020, my country issued the "Control Standards for indoor environmental pollution control of civilian construction engineering", which clearly stipulates: Class II civil buildings (office buildings, shops, etc.) in the air must not be higher than 300 Berg/cubic meter. Hospitals, school classrooms, etc.) The requirements of stricter requirements, not higher than 150 Beck/cubic meter [8].

Please note that below this concentration limit is not harmless, but that through risk assessment, under this concentration, the crowd is harmful to accept.

Therefore, when buying a house, encourage everyone to test the concentration of 氡 (not higher than 150 Berg/cubic meters), which is beneficial and harmless.

How to minimize the opportunity to contact 氡 in daily life? You can pay attention to the following points.

First, indoor decoration, choose building materials with low radioactive substance content. For example, marbles in some areas may contain more radioactive substances and release them. We can choose marble sources in other areas, or use tiles and other materials instead.

Second, try not to be in the ground or semi -underground space that does not circulate in the air for a long time, such as underground garages and basement, it is not suitable for bedrooms, offices, and gyms. In this environment, the concentration of crickets may be relatively high.

Third, the room should be ventilated often, not only the window, but also the door, and the air below the window sill fully exchanged the air.

Tips ——

Finally, correct the common sense related to the 氡 on the Internet.

1. Does natural gas contain 气?

meeting. From the depths of the crust to the ground, it will carry some crickets. But when we use natural gas at home, we don't have to worry. Because the semi -half -life period is very short, only 3.82 days, that is, every 4 days after 4 days, the 氡 will be reduced to half.

After the natural gas is mined, it will not be delivered to our home immediately. Instead, it is processing and transporting complex processes. The content of the natural gas in the natural gas is already very low, and it will not cause much harm to ordinary people. 2. Will there be a pupa in tap water?

在 can indeed be dissolved in the water, but because of the small solubility, the content of tap water we use is very low, which will not cause damage to the human body. The water sources of tap water in many cities are surface water such as rivers and lakes, and the content is very low.

If it is deep groundwater, the containing content may indeed be higher than the surface water. However, the water plant must be purified to the groundwater, and it must be transported through the pipeline. Essence

3. Is it reliable?

Forgive me, it may not be reliable. Because 氡 is an inert gas, in general, it does not respond to any substance. Therefore, our common purifiers and adsorbents are relatively limited to removing pollution pollution.

Green plants can not be removed, because it is difficult to react with it. Even after being absorbed by the green plants, it will basically be discharged.

The most reliable way to remove indoor pollution is to completely ventilate and reduce the unit concentration.

Summary:

The hot spring is actually very comfortable and comfortable,

But this thing is better to touch this thing.

Review expert:

Zhao

Associate Researcher of the Institute of Radiation Safety of the China Centers for Disease Control and Prevention

Liu Sheng

Deputy Chief Technician of Radi Sanitation Monitoring and Evaluation Department of Hubei Provincial Disease Control Center

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