For example, an average conversation takes place at around 60 decibels. Standing on a downtown street corner in rush hour, you're probably exposed to about 85 to 90 decibels. While using an electric hair dryer or pushing a gas lawnmower, you're well into the danger zone at 90-plus decibels. At peak levels, iPods can hit volumes of 120 decibels, which is louder than a chainsaw or jackhammer. Music in dance clubs can peak as high as 150 decibels.
Ian Murray, a hearing instrument specialist at the Robillard hearing Aid Centres in Ottawa, said that even 30 seconds at a venue at 100 decibels – well below the level created by a single leaf blower, let alone a stack of high-powered speakers - can cause permanent hearing loss.
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