On Sunday, November 30 there Medium level UV index (3.0) In the city and province of Buenos Aires, according to preliminary expectations. When this value is recorded, it means there is a slight to moderate risk of damage from sun exposure, so it is recommended to use adequate protection daily.
Expected values in the rest of the country It ranges from medium to very high. However, the National Meteorological Service (SMN) and other sources indicate that in northern provinces such as Misiones, the index could reach levels Very high (8 to 10) or even maximum (11+), especially in the middle of the day, so it is necessary to be very careful.
What is the UV Index and why is it important for health?
The World Solar Ultraviolet Index (WUI), created by the World Health Organization (WHO), is a measure of the intensity of solar ultraviolet radiation reaching the Earth’s surface. It is expressed on a numerical scale starting at zero and ascending, indicating that the higher the value, the more likely and quickly injuries to the skin and eyes will occur. Including serious and cumulative damages In the long term.
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It depends on factors such as sun altitude (time of day and time of year), altitude, ozone level in the atmosphere and clouds, in addition to other important environmental elements. Its levels are classified as follows: low (0-2), moderate (3-5), high (6-7), very high (8-10), and extreme (11+). Knowing this indicator is crucial because it helps the population take appropriate preventive measures. Limit exposure to sunlight and reduce health risks.
The danger of the sun’s ultraviolet rays to health
Ultraviolet (UV) rays are divided into UVA (which penetrate deeper and more persistently) and UVB (which cause burns). Both can cause serious health problems. Although minimal exposure is necessary for vitamin D synthesis, Excessive and prolonged exposure to sunlight It’s harmful.
In the short term, risks include: Sunburn and photosensitivity reactionsWhile in the long term, chronic and excessive exposure to UV rays can cause irreversible damage such as premature skin aging, various types of skin cancer (basal cell carcinoma, squamous cell carcinoma, melanoma) and eye damage.
It is one of the most prominent cases of cataracts, and the World Health Organization estimates that a percentage of them are due to exposure to ultraviolet rays.
Recommendations for personal care against ultraviolet rays
In the face of moderate to severe levels of UV radiation, the World Health Organization and the Pan American Health Organization (PAHO) strongly recommend sun protection, especially during hours when the sun is most intense, in general. Between 10 AM and 4 PM. It is necessary to seek shade, especially in the middle of the day, and to protect the most vulnerable groups such as infants and young children, who should never be exposed to direct sunlight.
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Includes personal protection measures Use protective clothing (Long-sleeved shirts, pants, and wide-brimmed hats) and sunglasses that block 99% to 100% of UVA and UVB rays. In addition, it should be applied generously Broad spectrum sunscreen (UVA/UVB), water resistant and with a sun protection factor (SPF) of 30 or greater, reapply every two hours, or after swimming or excessive sweating.