Beach umbrellas do not block all solar radiation: study
Page 1 of 1 • Share
Beach umbrellas do not block all solar radiation: study
[You must be registered and logged in to see this image.]
MADRID: Hiding out under a beach umbrella may offer you far less protection from the sun's harmful ultraviolet radiation than you expect, according to a new study by Spanish researchers.
As much as 34 percent of ultraviolet radiation, found to cause skin cancer and cataracts, reaches the ground covered by a beach umbrella, the University of Valencia researchers found.
This is because the umbrellas catch almost all of the direct rays but not the diffused radiation that penetrates through from the sides, according to the research published in the journal Photochemistry and Photobiology this week.
To carry out the study, researchers placed an ultraviolet ray sensor on the base of a blue and white canvas umbrella with a radius of 80 centimetres (12 inches) and a height of 1.5 metres.
"The umbrella intercepts the direct radiation that comes from the sun, but part of the diffused radiation, which makes up approximately 60 percent of the total, reaches the sensor from the sky not covered by the umbrella," study co-author Jose Antonio Martinez-Lozano said.
In addition to the use of umbrellas, doctors recommend people use sun creams, hats and clothing when at the beach to guard against ultraviolet radiation, and avoid hours when the sun is at its highest.
MADRID: Hiding out under a beach umbrella may offer you far less protection from the sun's harmful ultraviolet radiation than you expect, according to a new study by Spanish researchers.
As much as 34 percent of ultraviolet radiation, found to cause skin cancer and cataracts, reaches the ground covered by a beach umbrella, the University of Valencia researchers found.
This is because the umbrellas catch almost all of the direct rays but not the diffused radiation that penetrates through from the sides, according to the research published in the journal Photochemistry and Photobiology this week.
To carry out the study, researchers placed an ultraviolet ray sensor on the base of a blue and white canvas umbrella with a radius of 80 centimetres (12 inches) and a height of 1.5 metres.
"The umbrella intercepts the direct radiation that comes from the sun, but part of the diffused radiation, which makes up approximately 60 percent of the total, reaches the sensor from the sky not covered by the umbrella," study co-author Jose Antonio Martinez-Lozano said.
In addition to the use of umbrellas, doctors recommend people use sun creams, hats and clothing when at the beach to guard against ultraviolet radiation, and avoid hours when the sun is at its highest.
Zeba Khan Hoti- Monstars
- Posts : 773
Join date : 2011-02-24
Similar topics
» Brando USB Solar smartphone Charger Tree
» Chile holds first solar-powered car fair
» Space telescope spots odd new solar system
» What if I want to temporarily block my EVO connection
» try, catch and finally block?
» Chile holds first solar-powered car fair
» Space telescope spots odd new solar system
» What if I want to temporarily block my EVO connection
» try, catch and finally block?
Page 1 of 1
Permissions in this forum:
You cannot reply to topics in this forum
|
|
Today at 4:29 pm by Ibad Khan Buledi
» Bounce n Bang: Physics puzzler
Today at 11:39 am by ali001
» AIChatSY - AIChatbot Assistant
Yesterday at 10:48 am by ali001
» Storybook Magic App
Tue Apr 30, 2024 7:06 pm by ali001
» Flower Book Match3 Puzzle Game
Tue Apr 30, 2024 12:17 pm by ali001
» Avian Influenza Symptom in Chickens "Bird Flu H5N1 Virus" Vet learning materials, Poultry Farming
Sat Apr 27, 2024 9:57 am by Ibad Khan Buledi
» Aloha Planner - Note-Taker
Thu Apr 11, 2024 4:52 pm by ali001
» Streaming Guide Film TV Series
Tue Apr 09, 2024 9:39 pm by ali001
» Apricot Tree Problems & Solutions ????|خوبانی کے پھل کو کیڑا لگنےسے بچانے کا طریقہ ????
Sun Apr 07, 2024 6:28 am by Zamaan Khan