Editing Noise pollution (section)

===World Health Organization===

====European Region====
In 1995, the [[World Health Organization]] (WHO) European Region released guidelines on regulating community noise.<ref name=":02" /> The WHO European Region subsequently released other versions of the guidelines, with the most recent version circulated in 2018.<ref name=":16">{{Cite web|last=WHO Regional Office for Europe|date=2018|title=Environmental Noise Guidelines for the European Region|url=https://www.euro.who.int/en/publications/abstracts/environmental-noise-guidelines-for-the-european-region-2018|access-date=2020-11-30|archive-date=2020-12-13|archive-url=https://web.archive.org/web/20201213045618/https://www.euro.who.int/en/publications/abstracts/environmental-noise-guidelines-for-the-european-region-2018|url-status=live}}</ref> The guidelines provide the most up-to-date evidence from research conducted in Europe and other parts of the world on non-occupational noise exposure and its relationship to physical and mental health outcomes. The guidelines provide recommendations for limits and preventive measures regarding various noise sources (road traffic, railway, aircraft, wind turbine) for day-evening-night average and nighttime average levels. Recommendations for leisure noise in 2018 were conditional and based on the equivalent sound pressure level during an average 24-hour period in a year without weights for nighttime noise (LA<sub>eq, 24&nbsp;hrs</sub>); WHO set the recommended limit to 70&nbsp;dB(A).<ref name=":16" />
{| class="wikitable"
|+2018 WHO European Regional Office Environmental Noise Guidelines<ref name=":16" /> 
!Noise Source
!Recommendation for 
Day-Evening-Night Average Level (L<sub>den</sub>)
!Recommendation for 
Nighttime Average Noise (L<sub>night</sub>)
|-
|Road traffic
|53&nbsp;dB(A)
|45&nbsp;dB(A)
|-
|Rail
|54&nbsp;dB(A)
|44&nbsp;dB(A)
|-
|Aircraft
|45&nbsp;dB(A)
|40&nbsp;dB(A)
|-
|Wind turbine
|45&nbsp;dB(A)
|no recommendation
|}