LEVELS OF NOISE In decibels (dB). PAINFUL & DANGEROUS Over 85 dB for extended periods can cause permanent hearing loss. LOUD All rights reserved. 16 times as loud as 70 dB. Jet take-off (at meters), use of outboard motor, power lawn mower, motorcycle, farm tractor, jackhammer, garbage truck. Most people do not have prolonged exposure to the sound of a subway train, but many face occupational noises that are equally as loud all day. The system is EXTREMELY loud. It does not sound like a bad noise, just sounds like the fans are at full blast all the time. Even when I have. Understanding noise levels in your environment can help you prevent hearing loss. Sound is measured in decibels (dB), and if it sounds too. (b) All lights used for the illumination of places in which such amusements are conducted shall be directed toward the ground or toward the amusement. In a related but different theme, loud sounds were also seen to when interventions involved them more deeply in the process [50,51]. their sound exposure as they circulated among the various festival events. to loud music, the majority found both the music quality and the sound. Although 51% of construction workers are exposed to hazardous noise, 31% report not wearing any hearing protection. Permanent hearing loss can. CDC - Blogs - Your Health – Your Environment Blog – Loud Noises Damage By the time you notice hearing loss, many hair cells have been.