Case study: World Health Organization's guidelines for environmental noise revisited

The World Health Organization, WHO, presented new environmental noise guidelines in 2018. These guidelines recommended limit values that were far more stringent than the previous ones. WHO also launched the concept that 10% prevalence of high annoyance was the limit for adverse health effects. This paper discusses the development of environmental noise guidelines and presents alternative exposure limits found when applying the 10% highly annoyed concept to more recent studies on annoyance from transportation noise sources.