about the project
Medical news
For authors
Licensed books on medicine
<< Previous Next >>

Ionization of air. Air pollution factors, their effect on the human body

IW is determined by the presence of electrically charged particles in the air, which are formed as a result of the splitting of molecules and atoms of air gases under the action of ionizers (positive ions - cations, negative ions - anions).

Ionizing factors are:

* Ultraviolet rays of the sun;

* Lightning discharges;

* Mechanical shocks and vibrations;


* Waterfalls.

Ions that exist on their own, or attached to neutral molecules of oxygen, nitrogen, or ozone, are called light. Light air ions have a positive effect on the human body. If some suspensions are contained in the air (i.e. the air is not clean), light ions are deposited on these suspensions (dust particles, microbial bodies) and become heavy - indicators of air pollution. The air of the city contains 100-200 light ions in cm3, in rural areas - up to 1000 ions in 1 cm3, in resorts, in mountainous regions, etc. - from 2000 ions 1 cm3.

Ions are attracted to synthetic materials.

Physiological studies have shown that air ionization actively affects the functional systems of the human body. Especially negative oxygen ions (positive changes in gas and mineral metabolism, acceleration of wound healing processes) have a beneficial effect, and positive carbon dioxide ions, on the contrary, negatively (drowsiness, depression, reduces working capacity). Therefore, artificial air ionizers are widely used.
In addition, wet cleaning and through ventilation are mandatory.

Pollution is divided into:

* Mechanical (smoke, soot, dust, sprayed liquids). They irritate the mucous membrane of the respiratory tract and eyes, resulting in inflammation (catarrh). Submicroscopic dust and carcinogenic fumes of asphalt, tar, coal burning, and oil burning are especially harmful. Therefore, in the cities green protective zones (sanitary zones) are arranged, which take on these air suspensions;

* Chemical. Emissions from various enterprises cause acute and chronic diseases, poisoning and increase the role of the general incidence. About 60% of all chemical pollution comes from harmful emissions from motor vehicles;

* Biological (fungal spores, bacteria and viruses). Pathogenic bacteria and viruses are especially harmful. In the cold season, the air is less polluted, and in the summer it is more polluted (due to the drying of the upper layers of the soil and increased t °)

Means of struggle against microorganisms:

*Ultra-violet rays;

* Regular ventilation and drying of the room;


With increased air pollution, massive diseases arise: caused by microorganisms within one state - this is an epidemic, and spread to several states - a pandemic.
<< Previous Next >>
= Skip to textbook content =

Ionization of air. Air pollution factors, their effect on the human body

  1. Atmospheric air as an external environment. The complex effect of meteorological factors on the human body. Meteotropic reactions
    Atmospheric air is one of the most important components of human ecology. In the process of his life, a person constantly comes into contact with many factors of the external environment in which he lives, and these factors, of course, have a certain effect on the human body. One of the factors with which a person comes into contact most closely is the air environment. Air
  2. The influence of environmental factors of air, water and soil on the state of the dentition
    Any property or component of the environment that can have a direct or indirect (indirect) effect on living organisms is called an environmental factor. Conventionally, environmental factors are usually divided into biotic and abiotic. Biotic factors are the effects of wildlife components (animals, plants, microbes) on the body, abiotic are the effects on the body
  3. Air pollution as an important hygienic and environmental problem. Self-cleaning of air and its sanitary protection
    The composition of the air environment constantly includes a variety of extraneous impurities falling into it from various sources. Over time, as a result of human activities aimed at the development of technological progress, the number of such impurities to the air increases. Currently, the so-called clean air in settlements can only be practically shown
  4. The value of air to humans. Representation of the atmosphere. The composition of the air. Regulatory requirements for the air environment of classrooms
    The air environment that makes up the earth's atmosphere is a mixture of gases, which contains 27 gaseous substances. All aerobic creatures need air to breathe. Breathing is the process of obtaining energy by every living cell. In the atmosphere there is a constant cycle of these gases, so the composition is constant. But the composition of atmospheric air can change mainly due to
  5. Types of physical pollution of the environment and their impact on the human body
    Physical pollution is pollution associated with changes in the physical parameters of the environment. Depending on which parameters exceed the MPC, the following types of physical pollution are distinguished: - thermal - light; - noise; - electromagnetic; - radioactive, - radiation .. Temperature (thermal) pollution. Important weather element
  6. The effect of physical and chemical parameters of air on human health and hygiene requirements for the air-thermal regime of school premises
    Optimal air conditions are an important factor in maintaining human health and performance. Adverse changes in the air can cause significant disturbances in the body: overheating or hypothermia of the body, hypoxia, the occurrence of infectious and other diseases, and decreased performance. In a comprehensive hygienic assessment of air, the following are taken into account: - physical
  7. Sources of air pollution
    The main sources of pollution are motor vehicle exhausts, industrial emissions of harmful gases, ash, smoke, etc. Enterprises of metallurgical, chemical, cement and other industries emit enormous amounts of dust, sulfur dioxide and other harmful gases emitted from various technological production processes into the atmosphere (study questions health status
  8. Measures for sanitary protection of atmospheric air from pollution
    The most radical measure to combat air pollution is the organization of industrial production on the basis of non-waste technology; effective hygiene measures: gasification of power plants and cogeneration plants and boiler plants, electrification of railway transport, recovery of industrial emissions, control of exhaust gases
  9. Tasks for determining the quality and protection of air from pollution
    Determine the annual socio-economic damage from environmental pollution by cement dust during unloading of cement from wagons. {foto37} Solution 1) Cement losses causing dustiness of the air nts, kg, are determined by the formula nts = N • m • Kn / 100, where N is the number of simultaneously unloaded wagons, pcs .; m is the mass of cement in the car, kg; Kn - maximum rate
  10. Ways to prevent air pollution operating inhalation anesthetics
    Currently, there is not enough objective and convincing data on the absolute safe level of inhalation anesthetics in the air. A certain guideline can serve as their maximum permissible concentration (MPC) for industrial premises. In our country, the MAC of ether is 300 mg / m3, fluorotan - 20 mg / m3. Recommendations of the National Institute of Professional
  11. On the effect of ambient air on the body
    Air is an element [that is part of] our body and our pneuma. Although air is an element of our body and pneuma, it at the same time represents the reinforcement that comes to pneuma, and serves as the reason for its improvement not only as an element, but also as active, that is, as a balancing factor. We have already stated in the foregoing what we mean by pneuma: under [this word] we are not
  12. The effect of air quality on public health
    The health status of the population is one of the main criteria for environmental quality. In the structure of the general morbidity of the population, an increasing share is occupied by diseases that are a consequence of technogenic pollution of the environment, in particular atmospheric air. This trend has recently been observed not only in industrial regions, but also in rural areas. Atmospheric
  13. Gigina OS. Methods and technical means of protecting atmospheric air from pollution and purification of exhaust gases, 2010
    Discipline - Environmental Protection Technique In this work, an attempt is made to combine materials taken from technical literature, regulatory documents, journal and newspaper articles, reference books, as well as literature addressing environmental issues in order to most comprehensively present issues related to gas cleaning systems and solutions to problems
Medical portal "MedguideBook" © 2014-2019