![]() ![]() The Index is reported in the weather page of all Australian daily newspapers, on the Bureau of Meteorology website, and on some radio and mobile weather forecasts. Sunscreen should be incorporated into your daily routine on these days. At that level, it can damage your skin and lead to skin cancer. Sun protection times are issued by the Bureau of Meteorology when the UV Index is forecast to reach 3 or above. Check the ARPANSA website to see what the UV levels have been in your capital city today. The Australian Radiation Protection And Nuclear Safety Agency (ARPANSA) measures the UV index in a location at each of Australia’s capital cities and makes this real-time data available on a daily basis. The UV Index divides UV radiation levels into: It tells you the times during the day that you need to be SunSmart. The UV Index is a tool you can use to protect yourself from UV radiation. This means that UV levels are higher in some parts of Australia than others even on the same day. UV levels are affected by a number of factors including geographic location, altitude, time of day, time of year and cloud cover. Ozone in the atmosphere absorbs all UVC and it does not reach the earth’s surface. Ozone stops most UVB from reaching the earth’s surface, about 15% is transmitted. UVB causes skin damage and skin cancer.UVA can cause sunburn, DNA (cell) damage in the skin and skin cancer.There are three types of UV radiation, categorised by wavelength: UVA, UVB and UVC. And while UV radiation is higher in summer than in winter, it is still present every day of the year. Thick cloud provides a good filter, but UV radiation can penetrate thin cloud cover. UV radiation can be just as high on a cool or even cold day as it is on a hot one, especially if skies are clear. The temperature, however, does not affect UV radiation levels. UV radiation is often confused with infrared radiation. UV radiation – which we cannot see or feel.Infrared radiation – which we feel as heat.Visible light – which we can see as sunlight.The sun produces different types of energy: UV is a form of energy produced by the sun. UV radiation from the sun is also one of the best natural sources for vitamin D so a balance is important. Australia has some of the highest levels of UV radiation in the world – in fact, UV radiation is strong enough to cause sunburn in as little as 11 minutes on a fine summer day. This means you can't rely on clear skies or high temperatures to determine when you need to protect yourself from the sun.Įxposure to UV radiation from the sun and other sources, such as solariums, is the major cause of skin cancer. UV radiation can be high even on cool and overcast days. Ultraviolet (UV) radiation is the invisible killer that you can't see or feel. ![]()
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