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Darwin UV index

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UV rating Darwin today
UV levels Darwin
UV rays Darwin
UV rate Darwin
UV index Darwin

Darwin UV index

UV rating Darwin today
UV levels Darwin
UV rays Darwin
UV rate Darwin
UV index Darwin

What is a UV index?

The Earth is protected from ultraviolet (UV) radiation by the ozone layer. Different amounts of UV radiation can reach the Earth depending on when it is depleted, weather variations, and seasonal changes.

The UV Index is a scale that predicts ultraviolet radiation levels. It helps people to determine the best sun-protective behavior.

A number of fact sheets provide information about the UV Index as well as steps that can be taken to reduce your exposure to the sun’s UV rays. If the UV radiation levels are unusually high, the Web site will display a UV Alert. This indicates that there is a greater risk of being overexposed.

While some sun exposure can be pleasant, excessive exposure could prove to be dangerous. Sunburn, skin cancer, and cataracts can all be caused by overexposure to UV radiation. You can use the UV Index to plan outdoor activities that minimize sunburn.

The UV Index gives a forecast of the daily risk of sunburns. The Index forecasts UV intensity levels on an index of 1 to 11, where 1 is a low risk and 11+ is very high.

The UV Index is calculated on a next-day basis for dozens of cities around the globe. It takes into consideration clouds and other local conditions that can affect the amount of UV radiation reaching the ground in different areas of the country.

Overexposure to sunlight is a serious problem for all skin types. While overexposure to UV radiation can have serious health consequences for all, not everyone is at the same risk.

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You may be more at risk for skin cancer, for example.

  • If your skin always burns;
  • If you have red or blond hair;
  • If you have gray, blue, or green eyes.

There are other factors that indicate a higher risk of skin cancer.

  • A history of sunburns that were blistering in the early years of childhood,
  • The presence of many moles or
  • A family history of skin cancer.

It is important to remember that everyone, regardless of skin color, is at risk for eye damage.

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Health Effects of UV Radiation

Depletion of the Ozone layer reduces our natural protection against harmful UV (UV) radiation. This page provides an overview of the main health risks associated with UV radiation overexposure. These risks can be understood and taken precautions to reduce the risk of developing sun-related diseases.

Skin cancer

Every year, the U.S. diagnoses more skin cancer cases than any other type of cancer. In their lifetime, one in five Americans will get skin cancer. Every hour, one American is diagnosed with skin cancer. Skin cancer is most likely to develop from unprotected UV radiation exposure.

Melanoma

Melanoma is the most severe form of skin cancer and it is one of the most prevalent cancers in adolescents and young adults aged 15 to 29. Melanoma is responsible for approximately three percent of all skin cancer cases. However, it accounts for more than 75 percent skin cancer deaths. Sunburns and UV exposure, especially in childhood, are risk factors. Some melanomas can be caused by sun exposure, but not all. Other possible factors include genetic factors or immune system deficiencies.

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Nonmelanoma Skin Cancers

Non-melanoma skin tumors are more deadly than melanomas. They can spread, however, if they aren’t treated, and cause disfigurement and other serious health problems. Basal cell carcinomas and squamous cell carcinomas are the two main types of non-melanoma, skin cancers. These two types of cancer are rare if caught early.

Basal cell carcinomas are most commonly found in skin cancers. These tumors are usually found as fleshy, small bumps or nodules on one’s head and neck. However, they can also occur in other areas of the skin. Basal cell carcinoma is slow-growing and rarely spreads to other areas of the body. However, it can penetrate the bone and cause severe damage.

Squamous cell carcinomas can appear as nodules, or red, scaly spots. This type of cancer can grow to large masses and spread to other areas of the body, unlike basal cell carcinoma.

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Premature Aging, Other Skin Damage

Actinic keratoses, premature aging, and other UV-related skin conditions are also possible. Actinic Keratoses is a skin condition that occurs in areas of the body that are exposed to the sun. This type of lesion is most common on the neck, face, hands, forearms, and “V” of the neck. Actinic keratoses, although not necessarily premalignant are a risk factor in squamous cell carcinoma. If you find raised, reddish or rough-textured growths, seek immediate medical attention.

Premature aging can also be caused by prolonged sun exposure. This can lead to skin becoming thicker, wrinkled, and more leathery over time. Premature aging occurs slowly and often appears years after the majority (or even all) of a person’s exposure to sunlight. This is often considered a normal part of growing older. The sun can cause up to 90% of visible skin changes that are commonly associated with aging. Most premature skin aging can be prevented by using sunscreen.

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Cataracts and other eye damage

Cataracts can be a type of eye damage that causes vision to cloud. Blindness can result if cataracts are not treated. UV radiation is linked to certain cataracts, according to research. Modern eye surgery can treat cataracts, but they are not curable. They also affect the eyesight of millions and cost billions each year in medical care.

Eye damage can also include retinal degeneration, skin cancer, and pterygium. Eye protection can help reduce all of these issues. If you wear contact lenses, sunglasses, or glasses, look for lenses that provide 99 to 100 percent UV protection.

Immune Suppression

Scientists discovered that UV radiation can cause the skin to lose its natural defenses and immune system. The skin is normally able to defend itself against infections and cancers. Overexposure to UV radiation can cause the skin to be less resilient to these invaders.

Making sense of the UV index table

Exposure CategoryIndex numberSun protection messages
LOW<2You can safely enjoy being outside. Wear sunglasses on bright days. If you burn easily, cover up and use sunscreen SPF 30+.

In winter, reflection off snow can nearly double UV strength.
MODERATE3-5Take precautions if you will be outside, such as wearing a hat and sunglasses and using sunscreen SPF 30+. Reduce your exposure to the sun’s most intense UV radiation by seeking shade during midday hours.
HIGH6-7Protection against sun damage is needed. Wear a wide-brimmed hat and sunglasses, use sunscreen SPF 30+ and wear a long-sleeved shirt and pants when practical.

Reduce your exposure to the sun’s most intense UV radiation by seeking shade during midday hours.
VERY HIGH8-10Protection against sun damage is needed. If you need to be outside during midday hours between 10 am. and 4 p.m., take steps to reduce sun exposure.

A shirt, hat, and sunscreen are a must, and be sure you seek shade.

Beachgoers should know that white sand and other bright surfaces reflect UV and can double UV exposure.
EXTREME11+Protection against sun damage is needed. If you need to be outside during midday hours between 10 am. and 4 p.m., take steps to reduce sun exposure.

A shirt, hat, and sunscreen are a must, and be sure you seek shade.

Beachgoers should know that white sand and other bright surfaces reflect UV and can double UV exposure.
Interpreting the UV index table

Darwin UV index

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UV levels Darwin
UV rays Darwin
UV rate Darwin
UV index Darwin

You can reduce your chances of developing sun-related diseases by taking some simple precautions. These are some of the steps you can take to reduce your risk of sun-related illnesses:

  • You should limit your sun exposure between 10:00 a.m. to 4:00 p.m.
  • Shade is best when possible.
  • Broad-spectrum sunscreens should have a minimum of 30 Sun Protection Factors (SPF).
  • Wear a broad-brimmed hat, and, if possible, tight-woven, full-length clothes.
  • Wear UV-protective sunglasses.
  • Avoid tanning beds and sunlamps.
  • Keep an eye out for the UV Index every day.

You should take precautions to avoid overexposure to sunlight, but you must be extra careful to follow the UV Index recommendations when levels are moderate to high. You can find UV Index reports in local newspapers and on television.

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