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Human Effects when Exposed to Low-Frequency Noise or Vibration

Physiological effects from low-frequency noise or vibrations.

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The physiological effect of low-frequency noise and vibration peak amplitudes on a body:

Comfort Assessments of Vibration Environments

Vibration Level - Acceleration (m/s²)	Human Perception
< 0.315	Not uncomfortable
0.315 - 0.63	A little uncomfortable
0.5 - 1	Fairly uncomfortable
0.8 - 1.6	Uncomfortable
1.25 - 2.5	Very uncomfortable
> 2	Extremely uncomfortable

1 m/s² = 3.28 ft/s²

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Related Topics

Physiology - Human physiology, air quality and comfort temperatures, activity and metabolic rates, health effects of carbon monoxide and more.
Noise and Attenuation - Noise is usually defined as unwanted sound - noise, noise generation, silencers and attenuation in HVAC systems.

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Beams Natural Vibration Frequency - Estimate structures natural vibration frequency.
Decibel A, B and C - Sound pressure filters that compensates for the hearing sensed by the human ear.
Floor Vibrations - Human activities like walking, running and dancing - and operating machines - can introduce floor vibrations due to resonance.
Low-Frequency Vibrations Effects on Building Constructions - Effects of low-frequency vibrations on building constructions.
Noise - Acceptable dB_A Level - Acceptable noise - dB_A - level at typical common locations.
Noise Criterion vs. Noise Rating and dB(A) - Comparing Noise Criterion (NC, NCB, RNC) to Noise Rating (NR) and dB(A).
Noise Exposure - Permissible Levels and Duration - Exposure to noise should be controlled so that it is less than a maximum combination of exposure level and duration.
pH in Human Biological Material - pH in human materials like blood, salvia and more.
Sound Intensity - Acoustic power of sound per unit area.
Sound Pressure - Sound Pressure is the force of sound on a surface perpendicular to the propagation of sound.
Subjective Effect of Change in Sound Pressure Level - Change in sound pressure level and the subjective human perception.

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