The Noise pollution is generally caused by unwanted sound or sound which produces unpleasant effects and discomfort the ears. A sound's loudness is measured in decibels (dB). It is excessive noise. It may harm the activity or balance of human or animal life. Given here is an online noise pollution calculator tool which performs noise pollution level calculation(NPL) from the required values. Noise levels are measured using sound level meters that average dB levels over time.
When Level exceeded 10 Percent of Time(L10) = 2 dB, Level exceeded 50 Percent of Time(L50) = 3 dB, Level exceeded 90 Percent of Time(L90) = 4 dB,Find Noise pollution level?
then Noise Pollution Level(NPL) = 1.0667dB.