Some medications can also cause photosensitivity. Check with your doctor or pharmacist, as alternate medication may be available. Information on substances which cause photosensitivity can be found in the Guide on exposure to solar ultraviolet radiation UVR from Safe Work Australia.
What is UV? The UV Index and the sun protection times The sun protection times are issued when UV levels are forecast to be 3 or higher. You can find the sun protection times for your location: on our free SunSmart app on the SunSmart widget at the Bureau of Meteorology website.
Is temperature related to UV? The temperature can peak in the afternoon when UV levels are less intense. Why is the UV so high in Australia?
Australia experiences some of the highest levels of UV in the world. Different factors affect our UV levels including: location: UV levels are highest along the equator. Australia is near the equator so we experience high UV levels time of year: our elliptical orbit around the sun and our axial tilt combine to ensure that we are closer to the sun in our summer than the northern hemisphere e.
How does UV add up? Health effects of too much UV radiation Too much UV radiation can cause skin and eye damage, sunburn, tanning and skin cancer. Sunburn Sunburn is a UV radiation burn to the skin.
Most of us are used to adjusting our daily plans and choice of clothing to accommodate the weather forecast - especially to temperature predictions.
Similar to temperature, the UV Index also gives us a daily forecast of UV radiation levels and the potential danger of sun exposure — helping us make wise, healthy choices when determining just how much sun is too much sun.
Find a Doctor. Our History Executive Leadership. Careers Home For Practice Owners. Make a Payment Patient Portal. How Much Sun is Too Much?
The UV Index Explained Jul 22 The Ultraviolet UV Index is a valuable forecasting tool designed to help us make informed decisions about how much time we should spend in the sun and what type s of protection we should use. Wear UV-blocking sunglasses on bright days.
Watch out for bright surfaces, like sand, water and snow, which reflect UV rays and increase exposure. Stay in shade near midday when the sun is the strongest. Wear protective clothing, a wide-brimmed hat and UV-blocking sunglasses.
There the UVI rarely gets into the extreme range. In Australia, we spend most of the summer with "extreme" UV conditions in the middle of the day. There are concerns that the effect of the term "extreme" wears off if it is the norm.
UV radiation is separate from the visible and infrared parts of the spectrum, so you can't see or feel it. That means you can be at the cricket or the beach in summer at 5pm and feel hot but the UVI might be in the low range of 1 or 2. Or you can be in the same place, in a cool breeze on a 22 degree summer's day at 1pm and get seriously burned due to the extreme UV index. UV radiation reflects off many surfaces including concrete, water and snow.
Indirect UV refracted by the atmosphere can burn even if you are in the shade of a beach umbrella. If you can see lots of sky - even if you are in a little shade - chances are you are getting a pretty big dose of UV. But there is a lot around to help. Being indoors provides great UV protection, even near the window most office window glass gives very good UV protection. Summer clothing can vary from the crocheted bikini not so good to a close-knit cotton shirt and shorts or a flowing sundress.
The fabric weave and coverage are the keys - and look for UPF50 ultraviolet protection ratings. The best thing about clothing is you can see exactly what is or is not protected.
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