Skin cancer is the most common cancer diagnosed in Australia, where we have one of the highest rates on the planet, due to our proximity to thinner ozone areas. Ultraviolet (UV) radiation from the sun causes cell damage
The sun's ultraviolet (UV) radiation is the major cause of skin cancer. UV damage also causes sunburn, tanning, premature ageing and eye damage. The good news is you can prevent damage – and skin cancer – by being SunSmart.
Sun protection is recommended whenever UV levels reach 3 or higher. Below 3, sun protection isn't recommended unless you are outdoors for extended periods or near reflective surfaces, like snow. It’s seldom necessary - or recommended - to apply sunscreen to children under 6 months of age, unless absolutely necessary. As they’re not yet mobile, most babies can be covered with wide-brimmed hats, umbrellas or natural shade; beach canopies are excellent for this.
Australians shouldn't expose themselves to potentially harmful UV to get more vitamin D. Evidence suggests that prolonged sun exposure doesn't cause vitamin D levels to to increase further but it does increase your risk of developing skin cancer. When UV levels are 3 or higher, most Australians get enough vitamin D with just a few minutes of sun exposure while doing everyday tasks (10 square cm of skin exposed to the sun for 10 minutes is the average daily requirement).
Unlike the sun's heat and light, we can't see or feel UV radiation, so check the UV for your location on the free SunSmart app or on the Bureau of Meteorology website.
For the best protection, the Anti Cancer Council of Australia recommends these five SunSmart steps:
- Slip on covering clothing: Choose clothing that covers as much skin as possible, for example, collared shirts with long sleeves. Some clothing may carry an ultraviolet protection factor (UPF), which is a guarantee of how much UV protection a fabric provides.
- Slop on SPF 30 (or higher) broad-spectrum, water-resistant sunscreen: Apply a generous amount of sunscreen to clean, dry skin at least 20 minutes before you go outside. For big kids (average sized 10 year old) use at least 4.5 teaspoons (22 mL), for little kids (average sized 3 year old) use 2.5 teaspoons (12 mL). Reapply sunscreen every two hours or after swimming or excessive sweating. Always make sure your sunscreen is within the use by date, as efficacy can be lost.
- Slap on a hat: Choose a broad-brimmed, legionnaire or bucket style hat which shades your face, nose, neck and ears, which are common sites for skin cancers. Caps and visors do not provide enough protection.
- Seek shade: Use trees, shade structures, or bring your own canopy! Shade reduces UV radiation, but it can still reach you via reflection, so make sure you use shade in combination with other sun protection measures.
- Slide on some sunglasses: Sunglasses and a broad-brimmed hat worn together can reduce UV radiation exposure to the eyes by up to 98%. Sunglasses should be worn outside during daylight hours. Choose close-fitting, wrap-around sunglasses that meet the Australian Standard AS/NSZ 1067.
