For a broad slate of related noise topics, see noise (spectral phenomenon).
Example of transportation noise and how it affects the community.
Environmental noise is an accumulation of noise pollution that occurs outside. This noise can be caused by transport, industrial, and recreational activities.[1]
Noise is frequently described as 'unwanted sound'. Within this context, environmental noise is generally present in some form in all areas of human, animal, or environmental activity. The effects in humans of exposure to environmental noise may vary from emotional to physiological and psychological.[2] Noise at low levels is not necessarily harmful. Environmental noise can also convey a sense of liveliness in an area, which can be desirable. The adverse effects of noise exposure (i.e. noise pollution) could include: interference with speech or other 'desired' sounds, annoyance, sleep disturbance, anxiety, hearing damage and stress-related cardiovascular health problems.[3]
As a result, environmental noise is studied, regulated, and monitored by many governments and institutions around the world. This creates a number of different occupations. The basis of all decisions is supported by the objective and accurate measurement of noise. Noise is measured in decibels (dB) using a pattern-approved sound level meter. The measurements are typically taken over a period of weeks, in all weather conditions.
^European Commission. "The Green Paper on Future Noise Policy" (PDF). Archived from the original (PDF) on 23 November 2010. Retrieved 7 September 2013.
^Kinsler, L.E., Frey, A.R., Coppens, A.B. and Sanders, J.V. (2000). Fundamentals of acoustics. New York City: John Wiley & Sons. p. 359. ISBN 978-0471-84789-2.{{cite book}}: CS1 maint: multiple names: authors list (link)
^World Health Organization. "Guidelines for community noise". Archived from the original on 27 November 2003. Retrieved 7 September 2013.
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