1887

Radiation Effects and Sources

What is Radiation? What does Radiation do to us? Where does Radiation come from?

image of Radiation Effects and Sources

This publication is based on the major scientific reports of the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR) published in the last 25 years and aims to expand public knowledge on levels of exposure to ionizing radiation and possible associated effects. This publication does not set, or even recommend, radiation safety standards, rather, it provides information on basic science related to radiation (origin, quantities and units), on radiation effects (on humans and the environment) and on radiation sources (natural and artificial). Helping the public understand what radiation is and how it affects life on this planet lies within the core mandate of UNEP.

English

.

Introduction

Before we begin, we need to distinguish between ionizing and nonionizing radiation. Ionizing radiation has enough energy to liberate electrons from an atom, thereby leaving the atom charged, whereas non-ionizing radiation, such as radio waves, visible light or ultra-violet radiation, does not. This publication is about the effects of radiation exposure from both natural and artificial sources. However, the word radiation, throughout, refers only to ionizing radiation.

English

This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error