Could riding the train hurt your hearing?

June 18, 2009 A new study of mass transportation finds many riders may be exposed to dangerously high noise levels.

The research focused on public transportation in New York City, but researchers suspect other cities have the same problem. It found many mass transportation riders were being exposed to noise levels above recommended limits. Researchers say this could lead to hearing loss if a person is exposed to these loud sounds day in and day out.

Scientists evaluated noise levels on subways, buses, commuter railways and more. Subway cars and platforms had the highest levels but all systems had some potential for excess noise.

The study in the American Journal of Public Health suggests it's up to transit system engineers to reduce the noise through quieter equipment and better infrastructure.

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