For Wednesday December 10thSunlight exposure will be crucial. He UV index predicted maximum for the City of Buenos Aires and suburbs of Buenos Aires will reach the level 11taken into account “Extreme” on a global level. This value implies a very high risk of burns within minutes and makes it important to take maximum precautions to protect skin and eyes between 10 a.m. and 4 p.m.
The National Meteorological Service (SMN) warns of dangerous radiation levels across the country. Regions in central and northern Argentina, including the Cuyo and Litoral areas, will experience UV indices intermediate between these values “Very high” (8-10) And “Extreme” (11+). These conditions, typical of summer, require extreme health precautions to avoid irreversible damage from the intensity of the sun.
What is the UV index and why is it important for health?
The Global Solar Ultraviolet Index (WUI) is a standardized measurement tool describes the strength of solar ultraviolet radiation (UVR) that reaches the earth’s surface. The IUV was created and promoted by the World Health Organization (WHO) and the World Meteorological Organization and is expressed on a scale of values from 1 (low risk) to 11 or more (extreme risk). Its main function is to simply communicate the risk associated with sun exposure.
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The IUV is a crucial parameter, as protective measures are required from a value of 3. The value of the index is directly related to the intensity of the damage that the skin and eyes can suffer, as well as the time it takes to occur. By knowing IUV, which depends on factors such as sun elevation, altitude, cloud cover and ozone layer, citizens can plan their outdoor activities and take appropriate precautions, acting as an important prevention tool.
The danger of the sun’s ultraviolet rays to health
Ultraviolet radiation (UVR) from the sun is known to be carcinogenic. Excessive exposure is the main risk factor for developing Skin cancerincluding melanoma, the most severe form. The Pan American Health Organization (PAHO) and WHO point out that although controlled exposure is necessary for the synthesis of vitamin D, excessive exposure damages the DNA of skin cells, leading to damage Photoaging, burns and changes in the immune system.
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In addition to the oncological risk, UV radiation also causes serious eye damage. Chronic exposure is associated with Cataract developments, which is the leading cause of reversible blindness worldwide, and other diseases such as pterygium and keratitis. Health organizations warn that even on cloudy days or in winter, UV radiation can be so intense that it can cause injury, which is why constant protection is essential.
Given the UV indices classified as “very high” (8-10) or “extreme” (11+), the main recommendation is the WHO Avoid exposure to sunlight at central times of the day, usually between 10:00 a.m. and 4:00 p.m. When exit is unavoidable, the shadow must be sought. Clothing is the first barrier of protection, so it is advisable to wear tightly woven clothing, long sleeves and pants, and a wide-brimmed hat that covers the face, ears and neck.
It is important to complement protection with accessories and creams. The WHO and PAHO insist on the use of wraparound sunglasses which guarantee 99 to 100 percent protection against ultraviolet A and B rays. On exposed skin areas, a Broad-spectrum sun protection (SPF 30 or higher). In addition, it should be remembered that babies and small children need special protection and should always stay in the shade.
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