Is it true that iodine helps with radiation? How to save yourself from radiation during an explosion. Iodine preparations for radiation exposure and infection, other indications for use, overdose How iodine helps against radiation

PostNauka debunks scientific myths and fights common misconceptions. We asked our experts to comment on established ideas about radioactive substances and their effects on humans.

Radiation "man-made"

Not true.

Radiation is of natural origin. For example, solar radiation also generates background radiation. In southern countries, where the sun is very bright and hot, the radiation natural background is quite high. Of course, it is not harmful to humans, but it is higher than in northern countries.

In addition, there is also cosmic radiation, which from distant space objects reaches our atmosphere.

After all, what is radiation? High-energy particles bombard atoms in the atmosphere and ionize them. AT human body particles also ionize atoms, knock out electrons from shells, can destroy molecules, and so on. The nucleus of an atom is unstable, it can emit certain particles and go into a stable state. Can emit alpha radiation, can emit beta radiation, can emit gamma radiation. Alpha is charged helium nuclei, beta is electrons, gamma is electromagnetic radiation. This is radiation.

Particles fly everywhere and always. That is, there is a natural radiation background. Sometime it becomes harder due to a brighter sun or incoming radiation from stars, sometime less. It happens that a person increases the radiation background by building a reactor or an accelerator.

Lead walls protect against radiation

Only partly true.

In explaining this belief, two points need to be made. The first is that there are several types of radiation associated with different types emitted particles.

There is alpha radiation - these are the nuclei of helium-4 (He-4) atoms. They very effectively ionize everything around. But it's just your clothes that stop them. That is, if you have a source of alpha radiation in front of you and you are wearing clothes, wearing glasses, then nothing bad will happen to you.

There is beta radiation - these are electrons. Electrons have lower ionizing power, but this is more deeply penetrating radiation. However, it can be stopped, for example, with a small layer of aluminum foil.

And finally, there is gamma radiation, which, when compared at the same intensity, has the lowest ionizing power, but it has the best penetrating power and therefore represents the greatest danger. That is, no matter what kind of protective suit you wrap yourself in front of a gamma source, you will still receive a dose of radiation. It is protection from gamma radiation that is associated with lead cellars, bunkers, and so on.

With the same thickness, a layer of lead will be slightly more effective than the same layer of, for example, concrete or compacted soil. Lead is not a magical material. An important parameter is the density, and lead has a high density. It was because of its density that lead was indeed often used for defensive purposes in the middle of the 20th century, at the beginning of the nuclear age. But lead has a certain toxicity, so today they prefer, for example, just thicker layers of concrete for the same purposes.

Ivan Sorokin

Iodine protects against radiation contamination

Not true.

As such, iodine or its compounds are completely unable to withstand the negative effects of radiation. Why do doctors recommend taking iodine after man-made disasters with the release of radionuclides into the environment? The fact is that if radioactive iodine-131 enters the atmosphere or water, it very quickly enters the human body and accumulates in the thyroid gland, dramatically increasing the risk of developing cancer and other diseases of this “delicate” organ. Having “filled up” the iodine depot of the thyroid gland in advance, it is possible to reduce the capture of radioactive iodine and thus “protect” its tissue from the accumulation of a radiation source.

The fact that the time has come to massively take iodine, for example, in connection with or a threat nuclear explosion, citizens should inform the Ministry of Emergency Situations. In this case, it is better to have purified potassium iodide in tablets of 200 micrograms. If there is no threat of radioactive iodine-131 entering the environment, you should never take iodine on your own, since it, taken in a high dose, can cause serious damage to the thyroid tissue. The same, incidentally, applies to other radioprotectors. As a doctor, I observed in one provincial town an “epidemic” of vomiting, weakness, and muscle and abdominal pain caused by the massive intake of megadoses of various vitamins, an iodine alcohol solution, and other substances after a false report of an explosion at a nearby nuclear power plant.

Yaroslav Ashikhmin

Radioactive substances glow

Only partly true.

The glow associated with radioactivity is called the word "radioluminescence", and it cannot be said that this is a very common phenomenon. Moreover, it is usually caused not by the glow of the radioactive material itself, but by the interaction of the emitted radiation with the surrounding material.

It is quite obvious where this idea came from. In the 1920s and 1930s, when there was a peak of public interest in radioactive materials in various household appliances, medicines and other things, paint, which included radium, was used for clock hands and coloring numbers. Most often, this paint was based on zinc sulfide mixed with copper. Radium impurities, which emitted radioactive radiation, interacted with the paint so that it began to glow green.

A significant number of those watches and decorative objects that have come down to us continued to glow green because they remained radioactive. They were quite widespread, especially in the US and Europe.

In general, the phenomenon of radioluminescence, firstly, is not so common, and secondly, luminescence can also be of a completely different nature. Bioluminescence is a special case of luminescence, like radioluminescence. Glow-in-the-dark plants or fireflies are luminescence, which has nothing to do with radiation.

We can also recall that a number of uranium salts, which, along with plutonium in the public mind, is associated with the concept of radioactivity, have green color. But this has nothing to do with the formation of a green glow. In the vast majority of cases, no visible light is emitted during radioactive decay. And the "green glow" is usually associated not with the glow of the radioactive material itself, but with the interaction of radiation with the surrounding material.

Ivan Sorokin

Candidate of Chemical Sciences, Junior Researcher, Faculty of Chemistry, Moscow State University

Radiation exposure leads to mutations

Truth.

In fact, radioactive radiation can lead to various damages, and if both of its strands are damaged at the same time, then genetic information can be completely lost. To restore the integrity of genes, the DNA repair system can fill in the damaged area with random nucleotides. This is one way for a new mutation to appear. If the DNA damage is large-scale, then the cell can “decide” that it cannot survive with so many mutations, so it decides to commit suicide - to embark on the path. By the way, this effect is partially based on radiotherapy malignant neoplasms: even cancer cells can be "convinced" to start apoptosis when a large amount of damage is introduced into their DNA.

But we must remember that people are quite well protected from the effects of background radiation, which has been present throughout the history of the Earth. Background radiation rarely damages DNA strands, and if one of the two strands is damaged, it can always be repaired using a backup second strand. Much more harm to the body can be caused by ultraviolet radiation, the direct impact of which on unprotected skin can cause malignancy (that is, entry into the path of "cancerous degeneration") of skin epithelial cells. In the worst case, this can lead to the development, until recently (before the discovery of immunotherapy) was considered the "queen of tumors" due to a very poor prognosis.

Yaroslav Ashikhmin

Candidate of Medical Sciences, Cardiologist, Advisor Director General Foundation of the International Medical Cluster

question:
How to use iodine during irradiation? Is it possible to carry out the prevention of infection with an alcohol solution? How does iodine help? What other antidotes are there for radiation?

Iodine preparations for radiation exposure and infection, other indications for use, overdose

The action of iodine preparations during irradiation. Prevention of infection, treatment of poisoning

The most common application iodine in the form of an alcohol solution - a disinfectant, used to treat superficial wounds, in medicine - to prepare the surgical field. When applied to the skin, it promotes the resorption of subcutaneous hematomas, the reduction of post-traumatic and inflammatory edema.

In case of radiation contamination of the area, which may follow after an accident nuclear reactor, a large amount of radionuclides is released into the environment, including isotopes of uranium, plutonium, iodine-131 (half-life 8 days), cesium-134 (half-life 2 years), cesium-137 (half-life 33 years), strontium- 90 (half-life 28 years) - according to . Having entered the human body through the skin, lungs, mucous membranes, including with food, iodine-131-135 accumulates in the thyroid gland in high concentration, causing its damage.

Introduced before radioactive iodine enters the body, potassium iodide accumulates in the thyroid gland and protects it from the accumulation of radioactive isotopes. The earlier potassium iodide is taken - during infection or immediately after exposure - the more effective its action. taken over late dates(after 6 hours) - has a slight effect.

Apply potassium iodide inside, drinking plenty of water or milk. Release form - tablets of 100 and 200 mcg or solution - from 0.25% to 3%. There are also tablets of 65 milligrams (contain 50 mg of iodine).

Daily dose for an adult for the prevention of radioactive contamination - 0.125 grams, for children under 2 years old - 0.04 grams.

To protect against radioisotopes of iodine, it is possible to use both a 5% alcohol solution of iodine and Lugol's solution. It can be used orally, subject to the appropriate concentration, or applied directly to the skin, iodine is perfectly absorbed. It is applied with a swab to the skin in the area of ​​​​the forearms, thighs, shins in strips. Its use begins with the threat of nuclear contamination of the area and continues to be taken until the threat of iodine isotopes entering the body disappears.

For the treatment and prevention of diseases and conditions, the dosage of potassium iodide is prescribed by the attending physician.

Potassium iodide will please next side effects ingestion: nausea, vomiting, liquid stool, abdominal pain, restlessness, headache, thyroid function changes (hyperthyroidism, hypothyroidism), hyperkalemia, mumps, iodine toxicity (confusion, irregular heartbeats; numbness, tingling, pain or weakness in extremities; weakness); iodism (with prolonged use, especially at high doses): burning in the mouth or throat, metallic taste in the mouth, increased salivation, sore teeth and gums, reddening of the conjunctiva, swelling of the eyelids, rhinitis, fever, arthralgia, acne, dermatitis (exfoliative, etc. .), eosinophilia. Various allergic reactions: angioedema (angioedema), hemorrhages, urticaria.

At overdose potassium iodide may cause vomiting, abdominal pain, brown staining of the oral mucosa, runny nose, bronchitis, swelling of the vocal cords, bleeding from the urinary tract, anuria, falling blood pressure shock, collapse and death.

Overdose treatment: cleansing and washing the stomach with water or starch solution until clear water (disappearance of the blue color of starch), or 1% sodium thiosulfate solution, taking activated charcoal, laxatives, symptomatic and supportive therapy. Inside the intake of diluted starch, potato, corn, rice, oatmeal jelly (without dyes, sweeteners and other non-food additives).

Careful administration of potassium iodide is necessary in case of impaired renal function and thyroid diseases. At joint admission potassium-sparing diuretics, potassium-containing drugs and products may cause hyperkalemia, which can affect cardiac activity.

Attention!: Potassium iodide does not treat symptoms caused by radiation and does not prevent the body from absorbing ionizing radiation. Taking the drug does not eliminate the need for urgent evacuation from the contaminated area and does not eliminate the need for protection in shelter and the intake of uncontaminated food. It is not recommended to take the drug for more than 10 days. Pregnant and lactating women are recommended a single double dose of the drug and immediate removal from the affected area.

Potassium preparations are also needed at elevated concentrations in environment cesium, since with a deficiency of potassium in the body, cesium takes its place.

Other trade names for potassium iodide: 9 months Potassium iodide, Antistrumine, Vitrum Iodine, Yodandin, Iodbalance, Iodide, Iodomarin, Iodostin, Potassium Iodide 200 Berlin-Chemie, Microiodide, Potassium Iodide, Kalii iodidum.

Question:
The child took a sip of Lugol's solution, is it not very scary?

Answer:
The use of any solution of iodine inside does not pass without a trace. The degree of exposure depends on the concentration and amount of the drunk solution.
According to Wikipedia, it is prepared from 5 parts of iodine, 10 parts of potassium iodide and 85 parts of water. The total iodine content in this solution is 130 g/l. Lugol's solution with glycerin is also used (1 part iodine, 2 parts potassium iodide, 94 parts glycerol and 3 parts water).
containing free iodine at a concentration of 2% or 5% without dilution can irritate and destroy the mucous membrane of the esophagus and stomach. Lethal dose free iodine for an adult is from 2 to 3 grams (2000-3000 mg) of free iodine, that is, from 40 to 60 ml of 5% Lugol's solution.

Question:
I drank 4 tablets of Iodine-Active at a time. In the morning, my throat and neck hurt a lot. Eyes tear. What to do?
Answer:
It is believed that an overdose of iodine can occur when taking a daily dose of more than 500 mcg. The daily dose consists not only of the pills drunk, but also of the iodine eaten with salt, iodine applied to the skin, which enters the body during breathing. This condition is called iodism. May be manifested by irritation of the mucous membranes - runny nose, watery eyes, nasal congestion, painful swelling salivary glands, as well as local inflammation of the skin with acne. The condition may look like an allergic reaction.
With a small overdose, the phenomena can pass on their own, it is necessary to stop contact with the drug, for this you can take Activated carbon, drink milk, take a laxative. With the appearance of severe swelling and threatening states you need to see a doctor.

Question:
I have a spur on my heel doing an iodine mesh for how long can I continue so that there is no overdose?
Answer:
If you apply only the mesh and only on a limited area of ​​\u200b\u200bthe skin, then you can get a skin burn rather than a general poisoning of the body. Follow your well-being. When the first signs of poisoning appear - iodism: runny nose, lacrimation, nasal congestion, skin changes - it is necessary to stop contact with iodine. Do not get carried away with iodine mesh, there are many other methods for treating heel spurs. The most effective are orthopedic shoes, physiotherapy and spa treatment with mud treatments, for example, Pomorie mud in Bulgaria.

Question:
Did I put on a lot of iodine? And now my hand hurts, what should I do?
Answer:
If you are burned with iodine, then first the remnants of it must be washed off the skin with a stream of cool water, it is possible with neutral soap. Then apply the Panthenol aerosol to the damaged area of ​​the skin, it disinfects well and anesthetizes the burned surfaces. Aloe liniment helps well. In the future, treatment is carried out as with ordinary burns, that is, depending on the depth and area of ​​​​the lesion. In case of severe lesions, consult a doctor; in case of small lesions, home treatment can be carried out, for example, with sea buckthorn or just vegetable oil.

Question:
01481 My beloved wife had her thyroid gland removed. After the operation, she undergoes an examination and is given radioactive iodine to drink. We were warned to keep our distance from each other for 10 days. Question: If I did not follow the security measures, what consequences could arise? .. (My legs began to swell, which never bothered me and headaches). I would like to know the cause of swelling of the legs.
Answer:
Patients are reported to experience acute and chronic side effects during radioactive iodine treatment. Relatively often, loss of appetite, changes in taste, nausea and irritation of the salivary glands occur during therapy; relatively rarely, neck pain or swelling, headache, or temporary changes in the blood picture are disturbing.

Serious long-term effects are rare, affecting mainly the salivary and lacrimal glands, bone marrow (very rarely in patients over 45 years of age - depression bone marrow), lungs (very rarely - radiation pneumonia, worsening of pre-existing pneumonia), ovaries (temporary absence of ovulation, increased incidence of malformations in newborns born from pregnancy during the first year after treatment), testicles (azoospermia).

Accordingly, in persons in contact with treated patients, the possibility of side effects is very low. This applies more to children, pregnant and lactating women. Well, it can also be for people who are in a borderline state between health and illness.

Edema can occur when movement is restricted, with arrhythmias accompanied by heart failure, when wearing rubber bands on lower limbs, especially with problems with peripheral vessels, with excessive salt intake - the causes of edema can be different. If the problem really exists - contact your doctor, the diagnosis cannot be made via the Internet - there is simply not enough information to determine the specific cause.

Radiation exposure in medical practices like mammography and cancer treatment, with radioactive leaks like Fukushima, is becoming more important than ever to educate yourself about natural ways to protect yourself from radiation exposure. Fortunately for the protection of important glands endocrine system from radiation toxicity, namely the thyroid gland, iodine is needed.

Why is iodine so important?
Three incidents that happened just a year ago are still dumping millions of gallons of radioactive waste into the ocean. Radioactive waste experts say we're all playing with fire, given the amount of radioactive fuel stored on site at many reactors.

In some cases, the deadly Cesium-137 content is more than 10 times higher than during the Chernobyl accident in 1986. There is no doubt that one's own protection against radiation is extremely important. Now about iodine.

In fact thyroid uses iodine to create thyroid hormones. These hormones are responsible for maintaining metabolic processes in the body. Not only does it help you burn fat, but it also ensures that your lungs are processing air, your heart is still beating, and your liver, kidneys, and spleen are doing their job.

Dr. David Brownstein is an iodine expert. When it comes to radiation, he explains:

“If we have enough inorganic non-radioactive iodine in our body, radioactive fallout will not settle anywhere in our body. They will pass us by, leaving our organisms unscathed. It is important to understand that we have an adequate amount of iodine.”

Iodine can also promote health, naturally cure the following diseases:

ADHD
Mammary cancer
Detoxification
Fatigue
Mastopathy
Basedow's disease
Hashimoto's disease
Hypothyroidism

With several hours of intense exposure, acute radiation sickness can cause the process of DNA degradation in our body. Chronic exposure can cause cancer, and even a small dose of radiation can damage cellular regeneration.

Exists a large number of foods rich in iodine, which can be used to stop the development of radiation sickness. You can also take supplemental iodine, but organic, food-derived iodine is the most beneficial. The Linus Pauling Institute at Oregon State University recommends the following foods containing iodine:

Dried Seaweed, ¼ oz, > 4.5 mg (3000%)
Cod, 3 oz, 99 mcg (66%)
Iodized salt, 1 gram, 77 mcg (51%)
Baked potatoes with skins, 1 medium, 60 mcg (40%)
Milk, 1 cup (8 fluid ounces), 56 mcg (37%)
Shrimp, 3 oz, 35 mcg (23%)
Fish fingers, 2 fish fingers, 35 mcg (23%)
Turkey breast, baked 3 oz, 34 mcg (23%)
Cooked navy beans, ½ cup, 32 mcg (21%)
Tuna, canned in oil, 3 oz (can be ½), 17 mcg (11%)
Boiled egg, 1 large, 12 mcg (8%)

Despite the assurances of experts that the consequences of explosions at Japanese nuclear power plants are unlikely to reach our shores, people are still scared. Residents of Primorye are buying dosimeters and iodine preparations at crazy prices. Of course, one should hope for the best, but it will not be superfluous to figure out what actually protects against radiation. The leading researcher of the Central Clinical Hospital of the Russian Academy of Sciences, Director of the Center for Restorative Medicine, Doctor of Medical Sciences, will help us with this. Professor Evgeny ZHAROV

Sauerkraut versus isotopes

As our expert said, those isotopes that create an increased radiation background around the affected Japanese nuclear power plants are short-lived. That is, they “weather” after 7-8 days. And, given the direction of the wind, there is no direct threat to our population. However, preventive measures can't hurt. Let's see how the most popular measures to protect the body from radiation work.

- Iodine prevents the accumulation of cesium and strontium in the body. And if healthy man will take iodine-containing products for 3-4 weeks, then there will be no harm. But an excess of this trace element in the body can lead to disruption of the production of thyroid hormones. And it's not safe. Therefore, if there are already or were any problems with thyroid gland, then you should not take iodine without prior consultation with an endocrinologist.

- Red wine does not “remove” radiation, this is a philistine opinion. But it is a powerful antioxidant. That is, it suppresses the action of free radicals and inhibits oxidative processes in the body, which are triggered, including by radiation. In this sense, it can be considered good prophylactic. But! Only in small doses. The dose recommended by WHO is 150-200 ml per day, that is, a glass. In large doses, even the best wine acts like a banal drink and weakens the immune system. Strong drinks, such as vodka, do not affect radiation. And don't start.

- Vitamin C, as you know, activates the body's defenses. Taking vitamin C in daily doses of up to 1.5 grams is a recognized immune booster and part of anti-radiation therapy. Most of all ascorbic acid in sauerkraut, sea buckthorn, citrus fruits - in grapefruits.

Rice and cottage cheese “cleanse” the body from radionuclides

First of all - enterosorption. Per compound word the intake of sorbing agents is hidden, which remove the decay products of radioactive toxins from the intestines. There are pharmacy sorbents (activated carbon - 2-3 tablets before meals, enterosgel, etc.). Of the products, the best cleansing properties are rich in fiber oatmeal, grain bread, pears, raw rice, prunes.

Dairy products, especially cottage cheese, reduce the accumulation of radioactive strontium metal. And the substance methionine, contained in milk and fish, is necessary for the removal of radionuclides.

Also good sorbing properties have fruit and vegetable juices with pulp, decoction of flax seeds, decoction of chaga mushroom (this recipe has long been used by people living near the burial grounds of radioactive substances).

And in general, you need to drink more fluids to ensure the constant work of the kidneys to remove toxins. You can drink just pure clean water small portions between meals.

We really hope that the following advice will not come in handy in practice. But so, for general development: the most undesirable products in conditions of increased radiation are jelly, bone broth (they accumulate radionuclides), beef, boiled eggs (strontium from the shell turns into protein when cooked).

From the general rules of prevention: it is advisable to change and wash clothes after each exit to the street, take a shower several times a day, that is, try to wash off possible radioactive particles from the skin as much as possible.


BY THE WAY

Radiation is more dangerous for men and ... blondes

The threat of radiation contamination is also a huge stress for the body - both psychological and physical. And first of all, as practice has already shown, reproductive function suffers in people exposed to even small doses of radiation. Moreover, studies have shown that male infertility from radiation occurs more often than female. According to Professor Zharov, during the period of the Cold War of armaments, nuclear countries began to actively create sperm banks just in case.

Also, people with fair skin and hair are more susceptible to radiation compared to dark-skinned and dark-haired people. The same mechanism works here as in the case of UV radiation. After all, everyone knows that blondes and blondes burn faster in the sun.

Read also:

On the brink of a nuclear catastrophe. The level of radiation in the Land of the Rising Sun is exceeded dozens of times - the chronology of events

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