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What are the figures for normal atmospheric pressure. Atmosphere pressure

Our Earth has an atmosphere that puts pressure on everything that is inside it. In 1634, the Italian scientist Torricelli was the first to determine the value equal to atmospheric pressure. The impact on a person of his changes is studied by scientists of the most different specialties. As it turned out, atmospheric pressure depends on temperature, air density, altitude, gravity, latitude. It is subject to constant fluctuations.

What atmospheric pressure is considered normal? What does it equal? Physicists answer: 760 millimeters of mercury. The measurement must be carried out exactly at sea level, and the temperature must correspond to 15 degrees.

On a square centimeter of a body, normal pressure acts as a weight of 1.033 kg, but we do not notice it. This is because air gases are dissolved in tissue fluids. They completely balance the pressure of the atmosphere. Disbalance during weather changes is perceived as a deterioration in well-being. What atmospheric pressure is considered normal? Obviously, one that does not have a negative effect on the body. According to doctors, it is equal to 750 mm. rt. Art.

However, people living in places below or above sea level in conditions of permanently elevated or reduced pressure, adapting, tolerate it well. Therefore, what atmospheric pressure is considered normal for health also depends on our adaptation.

It is not so much atmospheric pressure itself that has a negative effect, but its rapid changes. Drops or rises in pressure cause deterioration of health, heart problems. imperceptibly. But with a rapid change in its air, located in various body cavities, acts on baroreceptors internal organs. Some people experience malaise, joint pain, pressure surges and other unpleasant phenomena.

For example, hurt eardrums, concerned about pain in the abdomen. This is due to the fact that the air in the body cavities presses on their walls. This is especially true during cyclones. Anticyclones have less negative impact on the body.

There may be pain in the heart, palpitations, heart rhythm disturbances. Dizziness, heart pain, difficulty breathing - these are the most typical complaints. Nervous system reacts with increased anxiety, irritability. Some people have increased aggressiveness, conflict. It's all about the impulses coming from the baroreceptors to the brain during a break. atmospheric pressure.

The dependence of well-being on the weather - that's what meteorological dependence is. It is most pronounced in people with chronic diseases of blood vessels, heart, lungs and joints.

What atmospheric pressure is considered normal in your area, you can find out at the weather station. Usually, meteorologists, when making forecasts, the pressure at each specific point leads to the pressure at sea level using a special formula.

The change in atmospheric pressure is of particular importance when ascending to great heights. It decreases high in the mountains. This leads to a decrease in blood saturation with it and the development of hypoxia - high-altitude, or mountain sickness. On the high altitude pulmonary edema may develop, leading to death if left untreated.

When the aircraft cabin is depressurized at high altitude, a sharp drop in pressure leads to the fact that all the fluids of the human body begin to boil. Air vascular embolism, paralysis, paresis and heart attacks of various organs develop.

Atmospheric pressure must be taken into account not only when climbing to a great height, but also during work related to the transition to an environment with a lower or lower or For this, special caisson chambers are used. Violation of safety regulations while working in them can lead to decompression sickness.

If you suffer from weather dependence, follow the weather forecasts. Timely taken medications will make it easier for you to endure jumps in atmospheric pressure.

From what pressure in the atmosphere on this moment, sometimes a person’s well-being depends very much, because the atmosphere of our planet puts pressure on everything that is inside it. Atmospheric pressure affects the health and well-being of a person, so scientists of various specialties identify these changes and monitor atmospheric pressure, which is subject to constant fluctuations. In our material, we will tell you what is the normal atmospheric pressure for a person in mm of mercury and pascals.

What does atmospheric pressure depend on?

First, let's look at what atmospheric pressure is. This is the pressure force of the air column on a certain unit of surface area.

The ideal conditions for measuring atmospheric pressure are 45 degrees latitude and 0°C air temperature. The measurement must also be taken at sea level.

But it is worth noting that due to changes in the height of the terrain above sea level, atmospheric pressure will also change. But at the same time, it will also be considered the norm, so each locality has its own normal atmospheric pressure.

Atmospheric pressure also depends on the time of day: at night, atmospheric pressure is always higher, as the air temperature is lower. But a person does not notice this, since the difference is 1-2 mm Hg. In addition, in areas that are close to the poles of the earth, fluctuations in atmospheric pressure become more noticeable. But there are no fluctuations at the equator.

What is normal atmospheric pressure for a person

It is generally accepted that normal atmospheric pressure in mmHg is 760 mmHg. That is, a column of air presses on 1 square centimeter of area with such force as a column of mercury 760 mm high. This is the norm of the Earth's atmospheric pressure, which does not adversely affect the human body.

A person does not feel normal atmospheric pressure due to dissolved air gases in tissue fluids, which balance everything. But at the same time, it still exerts pressure on us, equal to 1.033 kg per 1 square centimeter of the body.

But each person must individually understand what atmospheric pressure is considered normal for health, since this largely depends on the adaptation of the person. For example, many people can safely climb the top of a mountain without feeling the change in barometric pressure, while others faint from rapid changes in barometric pressure.

Only a sharp fluctuation in blood pressure can significantly affect a person's well-being if atmospheric pressure rises or falls faster than 1 mm Hg. pillar for 3 hours.

Note also that millimeters of mercury is not a standard unit of change in blood pressure. In the world it is customary to recognize the norm of atmospheric pressure in pascals. 100 kPa - normal atmospheric pressure for a person in pascals. A 760 mm Hg. column is 101.3 kPa.

Normal atmospheric pressure for Moscow

Capital Russian Federation is situated on Central Russian Upland. There is always low pressure in Moscow, because the city is located above sea level (the maximum point above sea level is 255 meters in Teply Stan, and average- 130-150 meters above the sea surface).

The norm of atmospheric pressure in Moscow is 746-749 mm Hg. It is very difficult to give an accurate result, since the relief in the capital of Russia is uneven. Also, the normal atmospheric pressure per person in Moscow is affected by the time of year. The norm of atmospheric pressure always rises slightly in spring and summer, and decreases in winter and autumn. If you constantly live in Moscow, then you will feel comfortable with blood pressure in Moscow from 745 to 755 mm Hg. pillar.

Normal pressure in St. Petersburg

Height northern capital above sea level is less than the height of Moscow. That's why Therefore, the norm of blood pressure is slightly higher here. Normal atmospheric pressure in St. Petersburg ranges from 753 to 755 mm Hg.

The most low-lying districts of St. Petersburg are characterized by the "classic" norm of blood pressure. The maximum pressure in St. Petersburg can approach 780 mm Hg - such an increase can lead to a powerful anticyclone.

Atmospheric pressure norm by region

It is known that each specific area corresponds to certain normal performance atmospheric pressure. The indicator changes according to the height of the object above sea level. The change in indicators occurs due to the movement of air masses between areas with different pressures. Atmospheric pressure changes due to uneven heating of air above the surface of our planet. A number of factors influence:

Landscape Features
Planet rotation
The difference in heat capacity of water and earth's surface
Differences in the reflectivity of water and earth

As a result, cyclones and anticyclones are formed, which form the weather conditions of the area. Cyclone means fast-moving eddies with a low level of blood pressure. The summer cyclone is rainy and cool weather, in winter it is warming and snowing. The anticyclone is characterized by high atmospheric pressure, in summer they bring dry and hot weather, in winter - frosty and clear.

The lowest atmospheric pressure is at the equator, and the lowest in the North and south poles. The value of atmospheric pressure fluctuates and depending on the time of day - the highest at 9-10 and 21-22 hours.

Even within a small area, atmospheric pressure measurements can vary. For example, for Central Asia normal blood pressure is 715-730 mm Hg. And for Middle lane Russian fluctuations in blood pressure at the level of 730-770 millimeters of mercury. In Mexico City, the capital of Mexico, the atmospheric pressure can drop to 580 mm Hg, since the city is located over 2000 meters above sea level. And the atmospheric pressure in China is even lower: for example, in the Tibetan city of Lhasa, the average annual blood pressure is approximately 487 mm Hg. pillar. The city is located 3500 meters above sea level.

Normal atmospheric pressure for Russian regions in mmHg

IN winter months above for the most part territory of the Russian Federation elevated level atmospheric pressure. The highest blood pressure during this period is observed over the Mongolian Altai and Yakutia - about 772 mm Hg. The lowest pressure in the areas over the Barents, Bering and Okhotsk seas is 753 mm Hg. For Vladivostok, normal blood pressure is 761 mm Hg

As we have already said, atmospheric pressure can vary significantly within the same region. Even the indicators of Moscow and the Moscow region may differ, since they have slightly different heights above sea level. Therefore, we provide data for normal atmospheric pressure according to Russian cities. But it should be remembered: even within the same city, the data may vary slightly, depending on the elevation of the area.

Norm of atmospheric pressure in Russian cities: table
	Atmospheric pressure is normal (mm Hg)

Rostov on Don
St. Petersburg

Yekaterinburg


Chelyabinsk

Yaroslavl
Vladivostok

How to measure atmospheric pressure

Atmospheric pressure in a particular area is measured either with the help of special instruments: a mercury barometer, an aneroid barometer, a liquid and electronic barograph, or by a special formula, if the height of the area and the pressure at sea level are known.

The formula for determining pressure looks like in the following way: P=P0 * e^(-Mgh/RT)

PO - pressure at sea level in Pascals
M- molar mass air -0.029 kg/mol
g - Earth's free fall acceleration, approximately 9.81 m/s²
R - universal gas constant - 8.31 J/mol K
T is the air temperature in Kelvin. Measured by the formula: t Celsius + 273
h - height above sea level in meters

A mercury barometer is a glass tube, approximately 80 cm long, containing mercury. This tube is sealed on one side and open on the other, the open end is immersed in a bowl of mercury. The height of the column of liquid, starting from the level of the cup, will report on the atmospheric pressure at the moment. It is not safe to use such devices, therefore they are used mainly in laboratory conditions, at meteorological stations and at industrial facilities, where measurement accuracy is very important. In everyday life, electronic barometers are often used, digital meteorological stations can be used even in camping and home conditions, and they are inexpensive.

Our planet is surrounded by a dense mass of air called the atmosphere. And the air column, which has a certain weight, “presses” on the body of each person and other objects.

Modern scientists have found that every centimeter of the human body is affected by the pressure of the atmosphere of the balance of about 1.033 kilograms. After the calculations, it was found that each person is under pressure of 15550 kilograms.

It's just a huge weight, but we don't feel it at all. It is possible that this is due to the fact that our blood contains dissolved oxygen. What should be normal atmospheric pressure and how does it affect each person? We will talk about this in more detail in our article. So, what atmospheric pressure is normal for a person.

Normal atmospheric pressure is 760 millimeters of mercury. More precisely, a column of air presses on one square centimeter of a person's area with the same force as a mercury column 760 millimeters high. This is the norm of the atmospheric pressure of our planet, which does not affect our body in any way.

We do not feel normal atmospheric pressure on ourselves because of the dissolved gases of air in tissue fluids, which help to balance everything. But still, it still presses on us, this pressure is equal to 1.033 kilograms per 1 square centimeter of our body.

Not everyone knows what atmospheric pressure is considered normal for our health, since it depends on the adaptation of each person. For example, some people may climb high mountain completely calmly not feeling changes in atmospheric pressure, while others immediately faint from sudden changes in pressure in the atmosphere.

A sharp fluctuation in atmospheric pressure can adversely affect a person’s well-being if it decreases or vice versa increases faster than 1 millimeter of mercury in two hours.

Meteorological dependence

The body of some people can quickly adapt to changes in environment. They do not even feel on themselves even such tests as flights by plane from one climatic zone to another.

At the same time, how other people feel how the weather changes without even leaving their apartment. For example, it can manifest itself in the form of constantly sweaty palms, general weakness in the body and severe headaches. It is in such people that diseases of the endocrine system and blood vessels are usually diagnosed.

It is especially difficult for those people who feel a sharp jump in atmospheric pressure for a short time. Most of the people whose body reacts this way to changes in atmospheric pressure are female representatives living in large metropolitan areas. Bad ecology, overcrowding in large cities, too hard rhythm of life are not the best companions for the health of every person.

You can get rid of meteorological dependence. To do this, you just need to show all your perseverance and be consistent in actions. These methods are known to everyone, they include: running and fast walking, hardening of the body, healthy eating, swimming, lowering extra pounds, getting rid of bad habits enough to sleep at night.

How does the human body react to high atmospheric pressure?

As mentioned above, the normal atmospheric pressure for a person is 750-760 millimeters of mercury, such a fluctuation is quite acceptable since the Earth's relief is not perfectly even. But, unfortunately, this indicator is not kept so often.

Due to the increased pressure in the atmosphere, there are no temperature and humidity drops, and clear weather sets in. But people suffering from allergies and hypertension react to such changes.

In calm weather in conditions big city general gas contamination makes itself felt. First of all, sick people who have big problems with the respiratory system react to this. High blood pressure in the atmosphere also negatively affects our immunity and this is expressed in the form of reduced white blood cells in the blood. As a result, weakened human body It is very difficult to fight any infectious diseases.

Doctors recommend such people to start their day with morning exercises. Then you need to take a contrast shower. Prepare for breakfast foods that contain a large amount of potassium (bananas, dried apricots, raisins, cottage cheese). Try not to overeat. Coming home from work, take a little rest from 30 minutes to 1 hour, after which you can do housework.

Human well-being and low atmospheric pressure

What atmospheric pressure is normal for a person, we found out, and what is low? You can conditionally answer this question if the barometer readings are below 750 millimeters of mercury. In this case, it all depends on the specific region of residence. For example, for the capital of our country, the mercury column is from 748 to 749 millimeters of mercury, and this figure is quite normal for this region.

The first to feel such a deviation are people suffering from heart disease, as well as those who have intracranial pressure. Most often they complain of frequent headaches, general weakness in the body, shortness of breath and pain in the intestines.

First of all, such people need to put their pressure in full order and, if possible, reduce physical activity. It is recommended that you take at least 10 minutes of rest during your working hours. You also need to drink plenty of fluids, for example, it can be green tea with the addition of honey. Take decoctions from medicinal herbs that are prescribed for cores. In the evenings, take a contrast shower, go to bed earlier than the prescribed time.

Normal atmospheric pressure and temperature

For every person optimum temperature indoors should be no more than +18 degrees. First of all, it concerns the bedroom. With an increase in air temperature and a decrease in atmospheric pressure, those people who suffer from lung diseases and cardiovascular diseases most often suffer.

With a decrease in air temperature and an increase in atmospheric pressure, hypertensive patients feel very bad, and allergy sufferers and those people who have problems with the urogenital area and stomach also become unwell.

In the case of repeated and sharp fluctuations in air temperature in the body of each person, a lot of excess histamine is produced, which acts as the main provocateur of allergic reactions.

We found out what normal atmospheric pressure is considered acceptable, this is 760 millimeters of mercury, but the barometer very rarely records such indicators. Keep in mind that the change in pressure in the atmosphere (when it decreases rapidly) is usually very abrupt. Due to such a difference in atmospheric pressure, a person who climbs high uphill loses consciousness.

In our country, atmospheric pressure is measured in millimeters of mercury. But in international system Pascals are taken as the measure of measurement. In pascals, normal atmospheric pressure is 100 kPa. Normal atmospheric pressure for our country will be 101.3 kPa.

Atmospheric pressure is the force with which a column of air presses on a certain unit area of the Earth. It is often measured in kilograms per square meter, and from there they are already converted to other units. By the globe atmospheric pressure varies - it depends on geographical location. Normal habitual pressure is extremely important for the human body to function properly. You should figure out what atmospheric pressure is the norm for a person, and how its changes can affect well-being.

When ascending a height, the atmospheric pressure indicator decreases, when descending, it rises. Also, this indicator may depend on the time of year and on the humidity in a particular area. In everyday life, it is measured using a barometer. It is customary to indicate atmospheric pressure in millimeters of mercury.

The ideal atmospheric pressure is considered to be an indicator of 760 mm of mercury, however, in Russia and in general most of the planet, this indicator is far from this ideal.

The normal force of air pressure is considered to be the one at which a person feels comfortable. Moreover, for people from different places habitats, in which normal well-being is maintained, will be different. A person usually gets used to the indicator of the area in which he lives. If a resident of the uplands moves to a lowland, for some time he will experience discomfort and gradually get used to the new conditions.

However, even at a permanent place of residence, atmospheric pressure can change. This usually occurs with the change of seasons and sudden changes in the weather. In this case, people with a number of pathologies and congenital weather dependence may experience discomfort, and old diseases may begin to worsen.

It is worth knowing how you can improve your condition with a sharp drop or increase in atmospheric pressure. It is not necessary to immediately run to the doctor - there are home methods proven by many people that help you start feeling better.

Important! It should be noted that people who are sensitive to change weather conditions, you should be more careful in choosing places for a vacation or a move.

What indicator is considered normal for a person

Many experts say: normal pressure for a person there will be an indicator of 750–765 mm Hg. It is easiest to adapt to indicators within these limits. For most people living on the plains, small hills, lowlands, they will be suitable.

It is worth noting that the most dangerous thing is not increased or decreased rates, but their sharp change. If changes happen gradually, most people won't notice them. Abrupt change may cause negative consequences: Some people may faint when going uphill.

Pressure table

IN different cities countries, the indicators will be different - this is the norm. Usually, in detailed weather reports, they tell whether the atmospheric pressure is above or below normal at a given time. You can always calculate the norm for your place of residence yourself, but it is easier to refer to ready-made tables. For example, here are the indicators for several cities in Russia:

City name	Atmospheric pressure is normal (in millimeters of mercury)
Moscow	747–748
Rostov on Don	740–741
St. Petersburg	753–755, in some places up to 760
Samara	752–753
Yekaterinburg	735–741
Permian	744–745
Tyumen	770–771
Chelyabinsk	737–744
Izhevsk	746–747
Yaroslavl	750–752

It should be noted that for some cities and regions large pressure drops are normal. locals they are usually well adapted to them, only a visitor will feel unwell.

Important! If weather dependence arose suddenly and had never been observed before, you should consult a doctor - this may indicate heart disease.

Effect on the body

For people with certain diseases and hypersensitivity to weather changes, pressure drops can adversely affect, in some cases limiting performance. Experts note: women are slightly more likely than men to respond to weather changes.

People have different reactions to changes. Some feel a slight discomfort, easily passing on its own after a while. Others require the use of special medications to avoid exacerbation of any disease that may occur due to changes in weather conditions.

The following groups of people are most prone to negative experiences during pressure drops:

FROM various diseases lungs, which include bronchial asthma, obstructive and chronic bronchitis.
With diseases of the heart and blood vessels, especially with hypertension, hypotension, atherosclerosis, and other disorders.
With diseases of the brain, rheumatic pathologies, diseases of the musculoskeletal system, especially osteochondrosis.

It is also believed that changes in weather conditions provoke bouts of allergies. Fully healthy people changes usually do not have a pronounced effect.

People with meteorological dependence experience headaches, drowsiness, fatigue, and pulse disturbances that are not observed under normal conditions. In this case, it is advised to consult a doctor to exclude the development of diseases of the heart and nervous system.

In addition to headaches and fatigue, people with various diseases may experience discomfort in the joints, drops in blood pressure, numbness in lower limbs, muscle pain. With exacerbation of chronic diseases, you should take the medicines prescribed by your doctor.

What to do when weather dependent

If hypersensitivity there is a change in weather conditions, but there are no diseases leading to it, then the following recommendations will help to cope with unpleasant sensations.

In the morning, it is advised to take a contrast shower, then drink a cup of good coffee to keep yourself in good shape. During the day, it is recommended to drink more tea. Better - green with lemon. It will be useful to do exercises, you can several times a day.

Toward evening, it is advised to relax. This will help herbal teas and decoctions with honey, valerian infusion and other mild sedatives. It is recommended to go to bed early and eat less salty foods during the day.

Many suffer from changes in the weather: what atmospheric pressure is considered normal for a person, and how to avoid feeling unwell, you will learn in this article. At normal atmospheric pressure, an air mass weighing 10,500 kilograms presses on a person! We do not feel this natural load, since oxygen is present in the body in a dissolved state.

Atmospheric pressure norm

Range in 750-760 mmHg. considered normal. Doctors know that many people quickly adapt to any conditions. Even long-haul flights and shifts climatic zones have no effect on their well-being.

However, most are weather dependent, and are sensitive to changes in weather conditions. Severe migraines and weakness, dizziness can occur during jumps in atmospheric pressure. Often patients suffer from diseases of the cardiovascular and endocrine systems. A violent reaction to weather changes is due to the fast pace of life, overcrowding in cities and environmental degradation. Help overcome addiction healthy lifestyle life:

running and walking outdoors;
weight loss;
elimination of bad habits;
hardening and swimming;
balanced diet.

A person's well-being is usually affected by a sharp change in atmospheric pressure - more than 1 mm Hg. st./3 hours. The world standard for measuring blood pressure is pascals. The norm is 101.3 kPa, which is equal to 760 mm Hg.

Natural "barometers" are patients who suffer from pressure drops, allergies, asthmatics. In addition, changes in weather conditions affect the well-being of people with atherosclerosis, osteochondrosis, rheumatic ailments, and diseases of the central nervous system. According to statistics, 30% of men and 50% of women in our country suffer from weather "dependence".

Too high blood pressure leads to a decrease in heart rate and a decrease in systole. Breathing becomes deep and rare. Hearing and smell may be slightly reduced, and the voice sounds muffled. There may be a feeling of dry mucous membranes and numbness of the skin.

Low blood pressure is characterized by deep and rapid breathing, a drop in blood pressure. The number of red cells in the blood increases. Lungs may be difficult to fill due to less oxygen air mass. It will be easy to get through a hard day. The less panic and stress, the better. Patients with chronic diseases exacerbated during periods of blood pressure fluctuations should consult a doctor about taking medications.

The normal value is 760 mm Hg. happens rarely. Clear weather is characterized by increased rates, the absence of temperature and humidity drops. Hypertensive patients and allergy sufferers react to such changes.

Windless weather, during which gas pollution in cities increases, suffers from patients with breathing problems. The higher the blood pressure, the fewer white blood cells in the blood. Accordingly, the risk of infections increases. Correct Mode days will help to cope with weather changes:

Start your morning with gymnastics.
Take a contrast shower.
Don't overeat.
Eat foods rich in potassium (banana, dried apricots, cottage cheese).
Go to bed no later than 22:00.

In addition, you can take a tincture of hawthorn or motherwort to calm down. Mustard plasters on calves will help improve the condition.

A decrease in blood pressure is felt by cores suffering from intracranial pressure. They may feel a lack of oxygen, pain in the intestines, general weakness is felt. Decreased mental and physical activity during the weather "crisis" will help to normalize well-being.

Drink green tea with honey throughout the day. To be in good shape during the day, take a tonic cocktail in the form of natural energy drinks. Lemongrass, echinacea, ginseng and eleutherococcus take 30 drops three times a day before meals.

Weather "ailments" are expressed in the "wadding" of the legs, joint pain, the appearance of swelling. Increased heart rate and reduced blood flow can lead to blood clots.

Main complaint in days of change weather factors is a migraine. "Hoop compression" of the head, blurred vision, nausea interfere with fruitful work and generally make any decisions. Periocular cluster pain or spasm concentration in the area of the nose or eyebrows can be unsettling.

Changes in humidity also affect human health. Low humidity leads to irritation of the nasal mucosa, which is quickly felt by allergy sufferers and asthmatics. To avoid discomfort, additionally moisturize the nasopharynx saline solution. An increase in humidity to 90% leads to an exacerbation of joint and kidney ailments.

If you do not feel well in dampness, then you should minimize your time outside. The warmer you dress, the better you will feel. Vitamins help overcome high humidity and not get cold.

Recovery of the body occurs during sleep. If the air temperature in the bedroom exceeds +17 degrees, then you will wake up, and rest will not give vivacity. Too cold or hot temperature regime in the sleeping room is harmful. If blood pressure is lowered, and the air temperature, on the contrary, is increased, then patients with cardiovascular and respiratory diseases do not feel very well.

When blood pressure is elevated and the temperature is lowered, asthmatics, hypertensive patients and people with diseases of the gastrointestinal tract and the genitourinary system suffer. Sudden temperature changes lead to a large number histamine in the body, which provokes allergy attacks. We can not influence the weather changes in any way, but it is possible to help the body. Give up junk food and negative habits, go in for sports - and it will be much easier to survive weather dependence.