The louder the sound and the longer the exposure, the greater the risk of damage. In general, noises below 70 decibels do not harm your ears, according to the non-profit American academic medical ...

Where after strange noises were heard from the toilet of the train, when the door was opened, it was found that the roof was broken. Prayagraj: Keeping in mind the safety of passengers ...

As the Trump administration investigates California’s bullet train project ... detailing how the first drilling noises were extremely prevalent. While she said the noise has gotten a little ...