Radiation and health
We work to strengthen radiation protection of the public, patients and workers worldwide. We provide Member States with evidence-based guidance, tools and technical advice on public health issues related to ionizing and non-ionizing radiation.
Radon

Radon

WHO / Trine Ladegaard
Eastern Region of Nepal
© Credits
Radon is a chemically inert, naturally occurring, radioactive gas. It has no smell, colour, or taste, and is produced from the natural radioactive decay of uranium which is found in rocks and soil. Radon gas escapes easily from rocks and soils into the air and tends to concentrate in enclosed spaces, such as underground mines, houses, and other buildings. Soil gas infiltration is recognized as the most important source of residential radon. Other sources of radon include building materials and water extracted from wells, but are of less importance.

Publications

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Policies, regulations & legislation promoting healthy housing: a review

The consideration of health in housing policies is vital to improve population health and to avoid unintended consequences. This review of health-promoting...

WHO Housing and health guidelines

Improved housing conditions can save lives, prevent disease, increase quality of life, reduce poverty, and help mitigate climate change. Housing is becoming...

Management of radioactivity in drinking-water

Chapter 9 of the WHO Guidelines for Drinking-water Quality (GDWQ) provides guidance related to radiological aspects of drinking-water.  Management...

Guidelines for drinking-water quality, 4th edition, incorporating the 1st addendum

The fourth edition of the World Health Organization’s (WHO) Guidelines for drinking-water quality (GDWQ) builds on over 50 years of guidance by WHO...

WHO guidelines for indoor air quality: selected pollutants

This book presents WHO guidelines for the protection of public health from a number of chemicals commonly present in indoor air. The substances considered...

WHO handbook on indoor radon: a public health perspective

The handbook book focuses on residential radon exposure from a public health point of view and provides detailed recommendations on reducing health risks...

Survey on Radon guidelines, programmes and activities

Under the framework of the WHO International Radon Project, WHO conducted a survey on indoor radon among WHO member states in 2005. This report includes...