140dB

140 decibels (dB) represents a very high sound intensity level. On the decibel scale, which is logarithmic, each 10-decibel increase signifies a tenfold increase in sound intensity and a perceived doubling of loudness. Therefore, 140 dB is significantly louder than everyday sounds.

To put this into perspective, a normal conversation is around 60 dB, a lawnmower is approximately 90 dB, and a rock concert can reach 110-120 dB. At 140 dB, the sound pressure is substantial. Prolonged exposure to sounds at this level, or even short bursts, can cause immediate and permanent hearing damage, including tinnitus and hearing loss. This level is often associated with extremely loud industrial noises, firearms being discharged at close range, or specialized sonic weapons. The threshold for pain is generally considered to be around 130 dB, making 140 dB well beyond that point. Due to the severe risk of hearing damage, environments where sound levels reach 140 dB typically require strict hearing protection measures for anyone present.