They are created by the action of technical devices of different origins and purposes.
DIVISION:
1) NON-IONIZING (www.weizmann.ac.il/safety/nonionrad.html):
- ELECTRIC (electricity),
- ELECTRONIC.
2) IONIZING:
- ALPHA RAYS (helium nucleus),
- BETA RAYS (electrons) (-),
- NEUTRONS (Uncharged particles),
- GAMMA AND X-RAYS (EM energy)
3) MECHANICAL VIBRATIONS
- OPERATION ON HEAVY MACHINERY
- VEHICLES and
- ULTRASONIC VIBRATIONS OF DEFECTIVE MACHINES AND APPARATUS
Non-ionizing radiation is a particular problem nowadays. Multiple applications of modern technology would be impossible without electricity and high-frequency electromagnetic radiation. For the production and distribution of electricity, many devices, power plants, high and low voltage connections, systems for the transformation of electricity, transmission lines, and even household appliances were created. This low-frequency network causes electric and magnetic fields and thereby produces an electromagnetic load on the environment known as electrosmog. Likewise, electrical devices, connections and other installations are surrounded by electromagnetic fields and/or emit electromagnetic waves.
For the needs of mobile telephony, radio and television, radar, military equipment, information transmission, transmitters constantly emit electromagnetic waves: high-frequency electrosmog, which we cannot feel. Today, the electromagnetic fields of mobile technology are ten to one hundred times higher than those of radio and television transmission for a single wave emission. At the same time, we are at the beginning of a development, which has an increasing application in communication. Thus, in addition to mobile phones, there are internal antennas, notebooks and computer networks that transmit information through transmitters. Almost every other household has a cordless phone, which constantly emits electromagnetic waves, even when not in use.
This electromagnetic radiation, the intensity of which increases daily above the permitted limit, causes nervousness, concentration problems, headaches, insomnia, loss of vitality and reduced physical and mental activity in most people - typical symptoms of electrostress. Epidemiological studies and experimental research come to the conclusion that electromagnetic fields and waves are harmful to human health even when they are within the permissible limits.
