Health security

Dahr Jamail | Sounds of War: Navy Warplanes Producing Deadly Noise Around US Bases

...To provide an idea of relative loudness of sounds: A vacuum cleaner is 70 decibels, heavy truck traffic is around 80 decibels, a chainsaw is 90 decibels, and being within approximately 100 feet of a jet engine is 140 decibels. Exposure to 140 decibels may cause immediate and permanent hearing damage or loss, as well as bleeding from the ears.