Tasks 14. The electromagnetic waves.  Х

158 
Science has shown that in all consumer electronics applying varying degrees 
generates electromagnetic waves of different frequencies. Electronic emission has 
become a new environmental disaster of global scale. 
Question.
How to influence the electromagnetic field of overhead power lines to 
people, animals and plants? 
Answer:
______________. 
 
Task 15: Hertzian waves 
Sources of artificial electromagnetic radiations, which include aerial power lines 
of high and super-high voltage, technical equipment of broadcasting, television, 
microwave and satellite communication, radar and navigation systems, laser 
beacons, household appliances - Wi-Fi, microwave ovens, monitors, and others. 
Significantly affected on natural electromagnetic background. 
In large areas, especially in the vicinity of passage of the overhead power lines 
of high and super-high voltage, radio and TV centers, radar installations, electric and 
magnetic fields has increased from two to five orders of magnitude, creating a real 
threat to people, flora and fauna. 
Sanitary limiting dose of the electric field is 1 volt per meter. The high-voltage 
power lines exceeding this dose observed at distances of up to a dozen, sometimes up 
to hundreds of meters. 
Surveys indicated that standing under a power line for 15 minutes three times a 
day for six days cause of neurological changes, decreased brain health. In areas where 
there are high-voltage power lines, electrostatic field strength can be up to several 
thousand volts for 1 m. 
The influence on the human body of high frequency electromagnetic waves 
(from 3 kHz to 300 GHz) of radio and television dependent from its frequency. The 
higher frequency or the shorter wavelength, the greater the impact.
High-frequency ultrasound, high-intensity laser beams very strong influence on 
the human brain. If they are not used for peaceful purposes, the impact of 
psychotropic weapons can change the cerebration: deteriorating memory, disturbed 
coordination of movements, appears an inadequate response to what is happening 
around. 
Question: What everyone should know in order to no harm to health? 
Answer:___________________________________________________ 

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