Environmental #noise is one of the top environmental risks to health. According to #WHO study –https://lnkd.in/eM8Yp5Jj – long-term exposure to an excessive level of noise can have adverse effects not only on hearing ability but also on one’s homeostasis – an internal physiological balance. Sound level is measured in #decibels (dB). Music, speech, or noise is a combination of many sounds of different frequencies. #dBA – is a weighted […]
