Generally speaking, noise that exceeds the safe noise standard (85-90 decibels) may cause tinnitus and deafness. However, there are individual differences in sensitivity to noise of the same intensity, and only sensitive people are harmed or are harmed the most.

In the process of noise-induced diseases, 90 decibels is a clear threshold. After exceeding 90 decibels, the individual differences between people are not obvious. This kind of noise is harmful to most people. All have adverse effects and can cause various diseases. Steady-state noise that remains in a constant state is less harmful to people than the same decibel, but impulse noise with sudden loudness and softness, and a sudden noise of 100 decibels may even cause sudden death to people. Perforated eardrums and hearing loss, so noise is recognized as a common pollution factor.