We’re exposed to radiation all the time. Some of it is natural, and some of it is from technology such as radio signals. Not all radiation is harmful – find out when it’s dangerous and when it isn’t.
Radiation in the environment
In this section
- We’re exposed to natural radiation all the time, usually at very low levels. Natural radiation includes the sun’s rays, cosmic radiation, and radiation from soil and our own bodies. Read more
- Radon is a natural radioactive gas. In some places overseas, radon is found in high levels – however, radon is only found in low levels in New Zealand. Read more