UVB radiation

UVB radiation is a type of ultraviolet light from the sun (and sun lamps) that has several effects on human health. UVB radiation is shorter than UVA radiation and longer than UVC radiation. It is absorbed by the ozone layer, but some reaches the earth's surface.

Effects on human health

UVB radiation can have both beneficial and harmful effects on human health. It is responsible for the production of vitamin D in the skin, which is essential for bone health. However, excessive exposure to UVB radiation can cause sunburn and can lead to skin cancer, including melanoma. It can also cause damage to the eyes, leading to conditions such as cataracts.

Protection from UVB radiation

There are several ways to protect oneself from the harmful effects of UVB radiation. These include wearing protective clothing, using sunscreen, and avoiding exposure to the sun during peak UVB hours (usually between 10 a.m. and 4 p.m.). It is also important to be aware of the UV index, which provides information about the strength of the sun's UV radiation at a particular place and time.

UVB therapy

UVB radiation is also used in medical treatments, such as phototherapy for skin conditions like psoriasis and eczema. In these treatments, the skin is exposed to controlled amounts of UVB light. This can help to slow the growth of skin cells and reduce inflammation.

See also

• Ultraviolet
• UVA radiation
• UVC radiation
• Sunburn
• Melanoma
• Cataracts
• Phototherapy
• Psoriasis
• Eczema

UVB radiation Resources
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