What kind of radiation is most dangerous for humans?
The realities of our time are such that new factors are increasingly invading the natural environment of people. One of which is a variety of types of electromagnetic radiation.
A natural electromagnetic background accompanied people always. But its artificial component, constantly replenished with new sources. The parameters of each of them differ in the power and nature of the radiation, the wavelength, and also the degree of health effects. What radiation is the most dangerous for humans?
How electromagnetic radiation affects a person
Electromagnetic radiation propagates in the air in the form of electromagnetic waves, which are a collection of electric and magnetic fields that vary according to a certain law. Depending on the frequency, it is conventionally divided into ranges.
The processes of information transfer within our body are of an electromagnetic nature. The incoming electromagnetic waves introduce disinformation into this natural mechanism, causing initially unhealthy conditions, and then pathological changes according to the principle "where it is thin there and is torn". One has hypertension, another has arrhythmia, the third has hormonal imbalance and so on.
Mechanism of action of radiation on organs and tissues
What is the mechanism of the action of radiation on human organs and tissues? At frequencies less than 10 Hz, the human body behaves like a conductor. The nervous system is especially sensitive to conduction currents. With a slight increase in the temperature of the tissues, the heat transfer mechanism functioning in the body is quite satisfactory.
Another matter is the electromagnetic fields of high frequency. Their biological effect is expressed in a marked increase in the temperature of irradiated tissues, which cause reversible and irreversible changes in the body.
In a person who received a dose of microwave radiation above 50 micro-roentgen per hour, there may be violations at the cellular level:
- stillborn children;
- disorders in the activity of various body systems;
- acute and chronic diseases.
Which type of radiation has the greatest penetrating power
What is the most dangerous range of electromagnetic radiation? It's not so simple. The process of radiation and absorption of energy occurs in the form of certain portions - quanta. The smaller the wavelength, the more energy its quanta possesses and the more troubles it can do if it gets into the human body.
The most "energetic" quanta in hard x-ray and gamma radiation. All the cunning of short-wave radiation is that we do not feel the emissions themselves, but only feel the consequences of their harmful effects, which largely depend on the depth of their penetration into the tissues and organs of man.
What kind of radiation has the greatest penetrating power? Of course, this radiation with a minimum wavelength, that is:
- and gamma radiation.
It is the quanta of these radiations that have the greatest penetrating power and the most dangerous, they ionize atoms. As a result, the probability of hereditary mutations arises, even at low doses of irradiation.
If we talk about x-rays, then its single doses during medical examinations are very insignificant, and the maximum permissible dose accumulated in a lifetime should not exceed 32 X-rays. To obtain such a dose, hundreds of X-ray images will be needed, performed at short intervals.
What can be the source of gamma radiation? As a rule, it occurs when radioactive elements decay.
The hard part of the ultraviolet can not only ionize the molecules, but also cause a very serious lesion of the retina. And, in general, the human eye is most sensitive to wavelengths corresponding to light-salad color. They correspond to waves 555-565 nm. At twilight, the sensitivity of vision shifts toward shorter - blue waves of 500 nm. This is explained by the large number of photoreceptors that perceive these wavelengths.
But the most serious damage to the organs of vision is caused by laser radiation of the visible range.
How to reduce the danger of excess radiation in the apartment
And yet, what radiation is the most dangerous for humans?
Undoubtedly, gamma radiation is very "unfriendly" refers to the human body. But even lower-frequency electromagnetic waves can cause damage to health. Emergency or scheduled power outage disrupts our life and routine work. All electronic "stuffing" of our apartments becomes useless, and we, being deprived of the Internet, cellular communication, television are cut off from the world.
The whole arsenal of electrical appliances in one way or another is a source of electromagnetic radiation, which reduces immunity and worsens the functioning of the endocrine system.
A connection was established between the remoteness of a person's place of residence from high-voltage transmission lines and the appearance of malignant tumors. Including children's leukemia. These sad facts can be continued indefinitely. It is more important to develop certain skills in their operation:
- When working most household appliances try to maintain a distance of 1 to 1.5 meters;
- place them in different parts of the apartment;
- remember that the electric shaver, harmless blender, hair dryer, electric toothbrush - create a sufficiently strong electromagnetic field, dangerous by its proximity to the head.
How to check the level of electromagnetic smog in the apartment
For these purposes, it would be good to have a special dosimeter.
For the radio frequency band, there is a safe dose of radiation. For Russia, it is defined as the energy flux density, and is measured in W / m² or μW / cm².
- For frequencies from 3 Hz and up to 300 kHz, the radiation dose should not exceed 25 W / m².
- For frequencies starting from 300 MHz to 30 GHz, 10 - 100 μW / cm².
In different countries, the criteria for assessing the radiation hazard, as well as the quantities used for their quantification, may differ.
In the absence of a dosimeter, there is a fairly simple and effective way to check the level of electromagnetic radiation from your home electrical appliances.
- Turn on all electrical appliances. Go to each of them in turn with the radio in operation.
- The level of jamming in it (crackle, squeak, noise) will tell which of the devices is the source of a stronger electromagnetic radiation.
- Repeat this manipulation near the walls. The level of interference here will also indicate the most contaminated by electromagnetic smog places.
Maybe it makes sense to rearrange the furniture? In the modern world, our body, so exposed to excessive poisoning, so any action to protect against electromagnetic radiation - this is an undisputed plus in the treasury of your health.