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How are ultraviolet rays used in everyday life?
Uses for UV light include getting a sun tan, detecting forged bank notes in shops, and hardening some types of dental filling. Ultraviolet rays can be used to kill microbes. Hospitals use UV lamps to sterilise surgical equipment and the air in operating theatres.
How can ultraviolet rays be helpful?
Some UV radiation is essential to the body as it stimulates the production of vitamin D. Vitamin D has an important function in increasing calcium and phosphorus absorption from food and plays a crucial role in skeletal development, immune function and blood cell formation.
What do ultraviolet waves do to humans?
UV rays, either from the sun or from artificial sources like tanning beds, can cause sunburn. Exposure to UV rays can cause premature aging of the skin and signs of sun damage such as wrinkles, leathery skin, liver spots, actinic keratosis, and solar elastosis. UV rays can also cause eye problems.
What are the side effects of ultraviolet rays?
Health Effects of UV Radiation
- Skin cancer (melanoma and nonmelanoma)
- Premature aging and other skin damage.
- Cataracts and other eye damage.
- Immune system suppression.
How to protect your skin from ultraviolet rays?
How Do I Protect Myself from Ultraviolet (UV) Rays? 1 Seek shade. 2 Protect your skin with clothing. 3 Use sunscreen. 4 Wear a hat. 5 Wear sunglasses that block UV rays. 6 Protect children from the sun.
Which is the safest way to use UVC radiation?
This is the safest way to employ UVC radiation because direct UVC exposure to human skin or eyes may cause injuries, and installation of UVC within an air duct is less likely to cause exposure to skin and eyes. There have been reports of skin and eye burns resulting from improper installation of UVC lamps in rooms that humans can occupy.
What are the practical uses of ultraviolet light?
Practical applications range from treating drinking water to dentistry. A false-colour image of the Sun’s corona as seen in deep ultraviolet light at 17.1nm by the Extreme ultraviolet Imaging Telescope (EIT) aboard the SOHO spacecraft.
When is the strongest time of day for UV rays?
Time of day: UV rays are strongest between 10 am and 4 pm. Season of the year: UV rays are stronger during spring and summer months. This is less of a factor near the equator. Distance from the equator (latitude): UV exposure goes down as you get farther from the equator.