Umbrellas do not protect against UV rays

This is an automatically translated article.

Sun protection or UV protection using umbrellas is what we are using. However, does the umbrella really block the sun and prevent the penetration of UV rays?

1. Overview of UV rays

UV rays are a type of electromagnetic radiation with extremely small wavelengths. Compared to the wavelength of visible light, this wavelength is quite small, but it is longer than X-rays. Radiation from UV rays accounts for about 10% of the radiation coming from the Sun's electromagnetic energy.
Radiation is also the source of electric arcs. This electrical energy has created a majestic landscape for the galaxy. Ultraviolet radiation is not ionizing radiation because the protons are not energetic. But it is still capable of causing certain substances to glow or produce fluorescence. The chemical or biological effects of UV light have many practical applications. It's not just about helping with heating thanks to floor-generating energy. The particles of this ray also interact with organic particles in nature.
Shortwave ultraviolet rays will damage DNA and have the ability to disinfect any contact surface. For humans when the skin is affected by ultraviolet light is a dangerous thing. Unprotected or sunburned skin can lead to skin cancer.
But the amount of UV rays brought by the sun is not completely harmful to life on earth. The ozone layer of the atmosphere is the part that helps filter harmful rays to help people minimize their effects. The dangerous short-wavelength UV rays are filtered out and are difficult to reach the earth.
Among the UV rays, UVB is a widely known form of ultraviolet light. It is used to help the body synthesize vitamin D. This benefits all species. Besides that there are some UV spectrum rays that bring negative effects.
By convention wavelengths less than 400 nm will not enter human vision. This is also the reason that ultraviolet rays cannot be seen with the naked eye. However, you can feel it based on some natural reactions of the body. Unlike humans, animals have sharper eyes and are able to see shorter wavelengths of spectrum. However, just because they can see more rays than humans, they also do not completely see all rays of short wavelength.

2. Use an umbrella to shield against UV rays

Using umbrellas for sun protection instead of physical or chemical products is not recommended by any experts. Especially when you go to the beach, if you use an umbrella instead of sunscreen, it will not be able to protect your skin from the effects of UV rays.
There are many comparative trials between using umbrellas and sunscreens . The majority of tests after 3 hours have shown that umbrella shielding hardly gives the desired results. 78% of umbrella users are still experiencing problems caused by UV rays. It may not appear immediately, but then their skin is more susceptible to sunburn. In contrast, only 25% of people using sunscreen experience this problem.
Same from statistical studies doctors always recommend us to use beach clothes. Therefore, on the same skin, the UPF index does not always give a certain result. Also use sunscreen SPF 50+. Clothing products with tight, dark weaves will have a high UPF. UPF is an indicator of UV protection
It is quite difficult to accurately assess the UPF protection index in each specific case. You can reduce the stats if you go to the beach due to the impact of sand and water
Add and that light is quite reflective. This is the reason for the increased risk of damage to your skin if not properly covered. Normally when at the beach you will be affected by about 25% due to light reflection. But if these effects are stronger than the combination, standing under the umbrella still makes the effects push up to 80%
That's why you should think that using an umbrella is not the only method of sun protection. We need to learn and apply more effective methods. From there, harmful UV rays also reduce their ability to reach the skin.
Above is some general information about ultraviolet rays. At the same time, you should also use umbrellas in combination with other sun protection methods to achieve effective results.

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