Question

different noise polluting devices with their intensity values and effects on human beings in our day to day life and also suggest few measures to be protected from them

Answer 1

Jet aircraft, 50 m away 140 dB  Threshold of pain 130 dB  Threshold of discomfort 120 dB  Chainsaw, 1 m distance 110 dB  Disco, 1 m from speaker 100 dB  Diesel truck, 10 m away 90 dB  Kerbside of busy road, 5 m 80 dB  Vacuum cleaner, distance 1 m  70 dB  Conversational speech, 1 m 60 dB  Average home 50 dB  Quiet library 40 dB  Quiet bedroom at night 30 dB  Background in TV studio 20 dB  Rustling leaves in the distance 10 dB  Hearing threshold 0 dB

Answer 2

may i know who are you