Noise from personal music players is a routine annoyance for travelers on buses, trains and planes.
But it also threatens permanent hearing loss for as many as 10 million Europeans who use them, according to a scientific study for the European Union that is due to be published Monday.
The report said that those who listened for only five hours a week at high-volume settings exposed themselves to more noise than permitted in the noisiest factory or workplace. Maximum volume on some devices can generate as much noise as an airplane taking off nearby. Read the rest of the story.

