Infrasonic noise
 
SAFER
Infrasonic noise
Musculoskeletal disorders
Ultrasonic noise
Noise
Vibration
Electromagnetic field (EMF)
Non-laser optical radiation
Microclimate
Hazards and effects of exposure
 
EFFECT OF INFRASONIC NOISE ON THE HUMAN BODY

Infrasonic noise can be perceived by a human in two ways:
  • auditory (through the organ of hearing) - at high levels of sound pressure, the hearing threshold strongly depends on the frequency of infrasonic noise and individual characteristics,
  • sensory route (via vibration sensing receptors), with the thresholds of sensory perception being 20-30 dB higher than auditory.
The impact of infrasonic noise on humans causes mainly nuisance effects. These are subjectively felt states:
  • pressure in the ears,
  • excessive fatigue,
  • discomfort,
  • sleepiness,
  • balance disorders,
  • disorders of psychomotor performance.
At high sound pressure levels (above 100 dB), infrasonic noise can cause resonance phenomena in organs and internal structures, which is perceived as an unpleasant vibration sensation. At very high levels of sound pressure (above 140 dB), they can cause harmful changes in the human body.