Sunset, Key Largo. Key Largo is an island in the upper Florida Keys archipelago and is the largest section of the Keys, at 33 miles (53 km) long. It is one of the northernmost of the Florida Keys in Monroe County, and the northernmost of the Keys connected by U.S. Highway 1 (the Overseas Highway).
Decibels are in essence a measure of volume. The volume or intensity of sound is measured in units called decibels (dB), generally on a scale from zero to 140 (any higher than 140 and you are in trouble immediately). The higher the number in decibels, the louder the noise. The louder the noise, the greater the risk of hearing loss.
How to Measure Decibels. In common usage, decibels are usually a way to measure the volume (loudness) of a sound. Decibels are a base 10 logarithmic unit, which means that increasing a sound by 10 decibels results in a sound that is twice as loud as the base sound. In general terms, a sound's decibel value is given by the formula 10Log10(I/10-12), where I = the sound's intensity in watts/square meter.