Hearing can be permanently damaged by loud summer noises such as
fireworks, marching bands, construction and the like. An audiologist
explains decibels for common sounds and offers tips and expertise to
safeguard hearing.

Link: http://www.sciencedaily.com/releases/2012/06/120625162911.htm?utm_source=feedburner&utm_medium=email&utm_campaign=Feed%3A+sciencedaily%2Fhealth_medicine%2Fhearing_loss+%28ScienceDaily%3A+Health+&+Medicine+News+--+Hearing+Loss%29