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As electromagnetic radiation affects the human body
Bioelectric and biomagnetic phenomena are inextricably linked with the electricity and magnetism the surrounding atmosphere and all its physical parameters. The study of these relationships opens amazing prospects in the knowledge of living matter.
LK boots, under the leadership of AF Tuktagulova, conducted research in the process of which was made a comparative analysis of the impact of all major environmental factors on the cardiovascular system of the person.
The material of the study was the number of calls per day emergency care for people with acute heart attacks. The findings were compared with meteorological environmental factors. As these factors were taken temperature, humidity, atmospheric pressure, atmospheric pressure change, change in the magnetic field of the Earth.
Analytical processing of more than 100,000 emergency calls in cardiovascular diseases has shown the following.
Number of calls by day to this category of patients is not constant - sometimes day by day it is increasing by more than 2-2, 5 times. At first it was assumed that the main determinant of the increase in calls that were sharp pressure drops or temperature. The fact that daily fluctuations in Earth's magnetic field is small.
Fluctuations in the magnetic field generated by industrial and transport electric mechanisms, many times more. Essentially, measure vibrations in the magnetic field can not cities. I had to use the measurements of the magnetic field produced from magnitoionosfernoy observatory of the St. Petersburg branch of the Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, USSR Academy of Sciences.
Produced by LK compiled Sapozhkova algorithm statistical processing method of the identification process gave an unexpected result. Number of calls depend on the environmental parameters and to increase it, apparently affected by adverse changes in these parameters. Among them were major changes in the magnetic field, and sudden changes in daily temperature and atmospheric pressure at a certain ratio of all other parameters.
The main conclusion from this study is as follows. Cardio - vascular system has a surprisingly subtle sensitiveness to changes in Earth's magnetic field and the frequency components of the differential air pressure.
Technogenic electromagnetic radiation and the human body
Current conditions are significantly different from the working and living conditions of people who lived hundreds of years ago. Change the ratio occupied by forest vegetation and the Earth's surface, have changed the size and range of the radiation, changed the cycle of moisture occurring in the form of evaporation from the Earth and falls to the ground a variety of precipitation.
The most significant changes began to occur in the late XIX century, when an active role began to play equipment in a person's life. Air environment polluted by waste from the fuel burned in airplanes, industrial waste, increasing the changes of electromagnetic fields by increasing the number of radio stations. Environmental change primarily manifested in the change of microflora and values of electromagnetic fields that interact with the person.
Electromagnetic pollution - the most powerful environmental factor acting on the modern man in the world. According to experts, the electromagnetic radiation is potentially more dangerous than radiation accidents. It acts almost the entire population, including children and adolescents, pregnant women and sick people. It affects virtually around the clock. Its level is continuously growing. Not studied pathology arising from it, including the long-term consequences. But even a surplus during the day a large artificial light with a spectrum different from naturally led to a large decrease in the sensitivity of the townspeople compared with those living in rural areas.
A typical example. Just over 100 years ago, the Mariinsky Theatre in St. Petersburg, now the Academic Opera and Ballet Theatre named after SM Kirov, 40-50 covered by oil lamps placed along the outer perimeter of the scene. The illumination of the scene is not satisfactory. Today, the scene illuminated by powerful searchlights of the side boxes, there are side illumination, separately illuminated background, however, the viewer often complains about the dim lighting of the scene.
The need for more light applies not only to the theater. It is no accident in the last 20 years, twice revised government regulations mandatory lighting in the direction of a significant increase, and the light - it is electromagnetic radiation. Lowering the sensitivity of the visual analyzer, defines the value of the electric pulse, entering the central nervous system, no doubt - an undesirable phenomenon. But at the same time, this reduction in the electrical activity of the visual analyzer - a kind of defensive reaction to the increased effect of visual stimuli, a kind of adaptation to
. How dangerous is a person close to the high-voltage power lines?
In experiments conducted by many researchers found a clear threshold field strength at which the change occurs striking experimental animal reaction. It is defined equal to 160 kV / m field strength less any significant damage to a living organism is not harmful.
The electric field generated by high-voltage lines, power lines, has an adverse impact on living organisms. Most sensitive to electric fields ungulates and man's shoes, isolating it from the ground. Hoof animals is also a good insulator. In this case, the isolation from the ground conductive body is induced volumetric capacity, depending on the ratio of the capacity of the body to the ground and wire for electric mains. The less capacity on the ground (the thicker, for example, shoe soles), the greater the induced potential, which may be several kilovolts, and even up to 10 kV.
When the body is approaching a grounded object (such as legs or a man's hand to a blade of grass or a twig of the bush), there is a spark, accompanied by sound effects (crackling) with the flow of a current pulse through the body. The resistance in the discharge circuit is determined by the transition resistance of the skin and the resistance of a blade of grass or twigs of a few megohms per 1 m length of the branches. Under these conditions, the maximum current pulse through the human can reach 100 - 200 uA
. The current increases considerably if the body is close to a well-grounded metal object. In this case, the maximum current pulse is determined only transient skin resistance units and can reach even tens of amperes. However, the immediate impact and such current pulses due to their low duration dangerous.
Hazardous exposure can occur when the current approximation (contact) of the human body with isolated from the ground mechanisms, such as a tractor with rubber tires. The capacity of such mechanisms on the wire line and the ground is considerably greater than in humans. For this reason, all the mechanisms that are in the area of high tension overhead line of the field, should be well grounded, for example, by a metal chain.
With long-term human presence in the fields of higher intensity (E & gt; 10 - 15 kV / m) may have adverse physiological changes associated with effects on the nervous and cardiovascular system, muscle tissue and organs. It is possible to change in blood pressure and heart rate, arrhythmia, increased nervous irritability. These effects are temporary and disappear over time after the cessation of field effects.
Work on power lines and substations with voltage of 110, 220 and 380 kV safe, but bit pulses can cause pain, nervous shock passes and even simple to develop a cramp. Also proved a direct specific effect on the body of the field. Under the action of electromagnetic fields on human it may affect the electric and magnetic field components directly through the acupuncture points.
Usually, the influence of the magnetic component can be neglected. The electric field strength in the working areas of 750 kV transmission line at the height of human growth about 5-6 times less dangerous values. However revealed adverse effects of the electric field of industrial frequency on the staff of transmission lines and substations of 500 kV and above; at a voltage of 380 kV and 220 this effect is weak. But with all the voltages of the field effect depends on the length of time in it.
A detailed review published in the journal "Advances of Physical Sciences" 1998, N 7 (Volume 168, str.767-791) article: N.G.Ptitsyna, Dzh.Villorezi, L.I.Dorman, N.Yuchchi, MI .Tyasto "Natural and technological low-frequency magnetic fields as a potential health hazard."
This review is written that living near power lines, the number of cardiovascular disease in 1, 5 - 3 times increased risk of leukemia, brain tumors.
LK boots, under the leadership of AF Tuktagulova, conducted research in the process of which was made a comparative analysis of the impact of all major environmental factors on the cardiovascular system of the person.
The material of the study was the number of calls per day emergency care for people with acute heart attacks. The findings were compared with meteorological environmental factors. As these factors were taken temperature, humidity, atmospheric pressure, atmospheric pressure change, change in the magnetic field of the Earth.
Analytical processing of more than 100,000 emergency calls in cardiovascular diseases has shown the following.
Number of calls by day to this category of patients is not constant - sometimes day by day it is increasing by more than 2-2, 5 times. At first it was assumed that the main determinant of the increase in calls that were sharp pressure drops or temperature. The fact that daily fluctuations in Earth's magnetic field is small.
Fluctuations in the magnetic field generated by industrial and transport electric mechanisms, many times more. Essentially, measure vibrations in the magnetic field can not cities. I had to use the measurements of the magnetic field produced from magnitoionosfernoy observatory of the St. Petersburg branch of the Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation, USSR Academy of Sciences.
Produced by LK compiled Sapozhkova algorithm statistical processing method of the identification process gave an unexpected result. Number of calls depend on the environmental parameters and to increase it, apparently affected by adverse changes in these parameters. Among them were major changes in the magnetic field, and sudden changes in daily temperature and atmospheric pressure at a certain ratio of all other parameters.
The main conclusion from this study is as follows. Cardio - vascular system has a surprisingly subtle sensitiveness to changes in Earth's magnetic field and the frequency components of the differential air pressure.
Technogenic electromagnetic radiation and the human body
Current conditions are significantly different from the working and living conditions of people who lived hundreds of years ago. Change the ratio occupied by forest vegetation and the Earth's surface, have changed the size and range of the radiation, changed the cycle of moisture occurring in the form of evaporation from the Earth and falls to the ground a variety of precipitation.
The most significant changes began to occur in the late XIX century, when an active role began to play equipment in a person's life. Air environment polluted by waste from the fuel burned in airplanes, industrial waste, increasing the changes of electromagnetic fields by increasing the number of radio stations. Environmental change primarily manifested in the change of microflora and values of electromagnetic fields that interact with the person.
Electromagnetic pollution - the most powerful environmental factor acting on the modern man in the world. According to experts, the electromagnetic radiation is potentially more dangerous than radiation accidents. It acts almost the entire population, including children and adolescents, pregnant women and sick people. It affects virtually around the clock. Its level is continuously growing. Not studied pathology arising from it, including the long-term consequences. But even a surplus during the day a large artificial light with a spectrum different from naturally led to a large decrease in the sensitivity of the townspeople compared with those living in rural areas.
A typical example. Just over 100 years ago, the Mariinsky Theatre in St. Petersburg, now the Academic Opera and Ballet Theatre named after SM Kirov, 40-50 covered by oil lamps placed along the outer perimeter of the scene. The illumination of the scene is not satisfactory. Today, the scene illuminated by powerful searchlights of the side boxes, there are side illumination, separately illuminated background, however, the viewer often complains about the dim lighting of the scene.
The need for more light applies not only to the theater. It is no accident in the last 20 years, twice revised government regulations mandatory lighting in the direction of a significant increase, and the light - it is electromagnetic radiation. Lowering the sensitivity of the visual analyzer, defines the value of the electric pulse, entering the central nervous system, no doubt - an undesirable phenomenon. But at the same time, this reduction in the electrical activity of the visual analyzer - a kind of defensive reaction to the increased effect of visual stimuli, a kind of adaptation to
. How dangerous is a person close to the high-voltage power lines?
In experiments conducted by many researchers found a clear threshold field strength at which the change occurs striking experimental animal reaction. It is defined equal to 160 kV / m field strength less any significant damage to a living organism is not harmful.
The electric field generated by high-voltage lines, power lines, has an adverse impact on living organisms. Most sensitive to electric fields ungulates and man's shoes, isolating it from the ground. Hoof animals is also a good insulator. In this case, the isolation from the ground conductive body is induced volumetric capacity, depending on the ratio of the capacity of the body to the ground and wire for electric mains. The less capacity on the ground (the thicker, for example, shoe soles), the greater the induced potential, which may be several kilovolts, and even up to 10 kV.
When the body is approaching a grounded object (such as legs or a man's hand to a blade of grass or a twig of the bush), there is a spark, accompanied by sound effects (crackling) with the flow of a current pulse through the body. The resistance in the discharge circuit is determined by the transition resistance of the skin and the resistance of a blade of grass or twigs of a few megohms per 1 m length of the branches. Under these conditions, the maximum current pulse through the human can reach 100 - 200 uA
. The current increases considerably if the body is close to a well-grounded metal object. In this case, the maximum current pulse is determined only transient skin resistance units and can reach even tens of amperes. However, the immediate impact and such current pulses due to their low duration dangerous.
Hazardous exposure can occur when the current approximation (contact) of the human body with isolated from the ground mechanisms, such as a tractor with rubber tires. The capacity of such mechanisms on the wire line and the ground is considerably greater than in humans. For this reason, all the mechanisms that are in the area of high tension overhead line of the field, should be well grounded, for example, by a metal chain.
With long-term human presence in the fields of higher intensity (E & gt; 10 - 15 kV / m) may have adverse physiological changes associated with effects on the nervous and cardiovascular system, muscle tissue and organs. It is possible to change in blood pressure and heart rate, arrhythmia, increased nervous irritability. These effects are temporary and disappear over time after the cessation of field effects.
Work on power lines and substations with voltage of 110, 220 and 380 kV safe, but bit pulses can cause pain, nervous shock passes and even simple to develop a cramp. Also proved a direct specific effect on the body of the field. Under the action of electromagnetic fields on human it may affect the electric and magnetic field components directly through the acupuncture points.
Usually, the influence of the magnetic component can be neglected. The electric field strength in the working areas of 750 kV transmission line at the height of human growth about 5-6 times less dangerous values. However revealed adverse effects of the electric field of industrial frequency on the staff of transmission lines and substations of 500 kV and above; at a voltage of 380 kV and 220 this effect is weak. But with all the voltages of the field effect depends on the length of time in it.
A detailed review published in the journal "Advances of Physical Sciences" 1998, N 7 (Volume 168, str.767-791) article: N.G.Ptitsyna, Dzh.Villorezi, L.I.Dorman, N.Yuchchi, MI .Tyasto "Natural and technological low-frequency magnetic fields as a potential health hazard."
This review is written that living near power lines, the number of cardiovascular disease in 1, 5 - 3 times increased risk of leukemia, brain tumors.
