Ionizing Radiation in our Environment

Radiation has always been a natural part of our environment. Natural radioactive sources in the soil, water and air contribute to our exposure to ionizing radiation, as well as man-made sources resulting from mining and use of naturally radioactive materials in power generation, nuclear medicine, consumer products, military and industrial applications.

Where does radiation exposure come from?

Sources and distribution of average radiation exposure to the world population

In this section you find information on our work for protecting people and the environment from harmful and avoidable exposure to radiation:

• Radon

Related WHO Environmental Sites

• Radiation in Drinking Water - WHO site
• Radionuclides in Food - WHO site