Skin Cancer - Topic 5
Exposure to ultraviolet radiation from the sun is the main cause of skin cancers in Australia. Skin damage from the sun is cumulative - the longer the skin is exposed to the sun, the greater the risk of skin cancers, regardless of your tan or skin pigment.
Rural workers have a high risk of getting skin cancers, as their work can expose them to long periods of ultraviolet radiation.
Spot the hazard
To help you spot skin cancer hazards, consider:
- Lack of shade in outdoor work areas.
- Reflective surfaces, eg water, cement, shiny metal or white painted sheds and silos, cement surfaces.
- What jobs are done in sunlight, and how long they take.
- What are the peak sun hours.
- The day's ultraviolet exposure forecast.
- What body surfaces are exposed to sunlight.
- Whether sun blockout is provided or used.
- Whether protective clothing is available and worn.
Assess the risk
To assess the risk of skin cancer from identified hazards:
- Work out approximately how long is spent working outdoors each day.
- Identify what jobs are normally done in peak sun - between 10am and 4pm.
- Check whether shade is available for outdoor jobs.
- Check whether hats, protective clothing and sunscreens are adequate.
- Check whether SPF15+ sunscreen is applied to all exposed skin areas.
- Ensure sunscreen is re-applied during outdoor work.
Learn to identify various types of skin cancer, and check your skin for sunspots and unusual pigmentation.
Basal Cell Carcinoma
Starts as a small lump that flattens out as it grows. One of the two most common growths, it can be easily treated and cured.
Squamous Cell Carcinoma
The other most common growth; however it is more likely to spread to other parts of the body.
Malignant Melanoma
The most dangerous type of skin cancer. Often starts as a dark mole. This type is responsible for over 1000 deaths in Australia each year.
Sunspot (Keratosis)
A small, scaly patch of skin occurring on the arms, face, nose and ears. They are not strictly a form of cancer, but indicate excessive exposure to solar UV radiation.
Be aware of short term injury risks:
- reddened skin, blistering, swelling, and later, peeling of the skin.
- photosensitisation - acute skin reaction to UV with certain drugs, ointments, creams, and chemicals, resulting in increased sunburn and skin damage.
- photoconjunctivitis and photokeratitis - sore, red, gritty swollen eyes, with sensitivity to strong lights.
Long term effects include:
- Prematurely ageing - wrinkling, wasting skin tissues, excessive pigmentation, spots marked by clusters of tiny blood vessels.
- Cataracts of the eye.
Make the changes
- Wear cool, protective clothing, i.e. a shady hat, shirt with collar and long sleeves, and long trousers.
- Use a sunscreen with a high sun protection factor (SPF +15) before you go into the sun.
- Noses, lips, ears, bald heads, necks and backs of hands need extra protection.
- Reapply sunscreen regularly, especially if you are sweating.
- Make use of shade areas wherever possible in the high risk hours.
- Use a tractor with shade protection fitted.
- To safeguard against cataracts, sunglasses that conform to with applicable standards are recommended.
Early signs
Check your skin for early signs of skin cancer:
- any unusual skin conditions that don't heal in four weeks;
- any sore, ulcer or scaly patch on the skin;
- a white patch on the lips that doesn't heal;
- any mole that seems to grow quickly;
- any mole that changes shape or colour;
- any mole that bleeds or repeatedly itches.
If you find any of these signs, see your doctor.
Remember
Over-exposure to the sun's rays increases the skin cancer risk both now and in the future.
Copies of this information may be freely printed and distributed provided that WorkSafe Western Australia receives appropriate acknowledgement, and that no substantial changes are made to the text.
|