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  • 2022-01-01

    Environmental noise: compendium of WHO and other UN guidance on health and environment, 2022 update

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    A 2022 World Health Organization report on environmental noise outlines the health risks posed by traffic, aircraft, and leisure noise, including increased risk of heart disease, sleep disturbance, and hearing impairment. The report recommends that aircraft noise levels stay below 45 dB for average exposure and below 40 dB at night to protect public health. It also defines mitigation strategies ranging from reducing noise at the source to behavior change and community education.
  • 2024-05-07

    The basics of noise metrics

    This document explains how aircraft noise is measured using decibel-based metrics such as DNL, CNEL, and SEL, and highlights that the FAA's accepted noise threshold of 65 dB exceeds the World Health Organization's recommended limits of 50–55 dB outdoors and 30–35 dB indoors. It also notes that standard metrics like SEL fail to capture the cumulative impact of repeated aircraft overflights. The international aviation body ICAO recommends a four-part 'Balanced Approach' to managing airport noise, encompassing noise reduction at the source, land-use planning, operational procedures, and operating restrictions.

  • Compendium of WHO and other UN guidance on health and environment

    Welcome to the global repository of interventions for creating healthier environments and improving health The Compendium is a comprehensive collection of available WHO and other United Nations (UN) guidance for improving health by creating healthier environments. It provides an overview and easy access of 500 actions, and a framework for thinking about health and environment
  • 2022-01-01

    Compendium of WHO and other UN guidance on health and environment: 2022 update

    This 2022 WHO compendium brings together guidance from the World Health Organization and other United Nations agencies on the links between human health and environmental factors. It covers topics such as air quality, water, sanitation, and climate-related health risks, providing policymakers and practitioners with a consolidated reference for evidence-based standards. The document is produced in collaboration with UNDP, UN Environment, and UNICEF.