What is UV radiation? Of the many types of radiation emitted by the sun, mainly visible (light) and infrared (heat) reach the earth's surface. Ultraviolet radiation (UVR) is also present but we cannot see it or feel it. Ozone in the atmosphere absorbs much of the dangerous UVR before it reaches the ground but we can still receive enough to cause sunburn and more serious health problems.

Why is UV radiation dangerous? Exposure to UVR can cause not only sunburn but also lasting skin damage. This may result in premature skin ageing and skin cancer. UVR can also cause eye disorders such as cataracts. Australians have the highest rate of skin cancer in the world. Our country has high UVR levels and relatively clear skies. Poor use of sun protection measures during outdoor work and leisure, means our mainly fair-skinned population has a high exposure to UVR. The risk of a person eventually developing skin cancer is related to the amount of UVR they are exposed to over their lifetime, particularly in childhood.