Noise levels are measured in decibels, or dB for short. The higher the decibel level, the louder the noise. Sounds that are louder than 85 dB can cause permanent hearing loss.
|
|
|
Noise levels are measured in decibels, or dB for short. The higher the decibel level, the louder the noise. Sounds that are louder than 85 dB can cause permanent hearing loss.
|
|
About 23
Just In
Discover the world from a different angle.
Here's a crop of the latest photos from the around the world. |
Popular photos right now               |
