What is radiation? 

Radiation is a natural part of our living environment. There are two types of radiation - ionising and non-ionising. On the other hand, radiation can be either electromagnetic waves or particle radiation. 

Ionising radiation has enough energy to remove electrons from the atoms of the substance being irradiated or to break the molecules of the substance. Radioactive substances emit ionising radiation. Also X-ray equipment, for example, produces it. 

Non-ionising radiation is electromagnetic waves. Non-ionising radiation is used in applications such as mobile phones and microwave ovens. Solar radiation is also non-ionising. The borderline between non-ionising and ionising radiation is between ultraviolet radiation and X-rays.