UVA radiation

UVA radiation is a type of ultraviolet radiation that is less harmful than UVB radiation and UVC radiation, but can still cause damage to the skin and eyes. It is the longest wavelength UV radiation and is able to penetrate deeper into the skin than other types of UV radiation.

Overview

UVA radiation is present in sunlight and can also be produced by artificial sources such as tanning beds. It is responsible for the immediate tanning effect that occurs after sun exposure, but it can also cause long-term skin damage such as wrinkles and skin cancer.

Effects on the skin

UVA radiation penetrates the skin more deeply than UVB radiation, reaching the dermis, the skin's thickest layer. It can cause DNA damage in the skin cells, leading to premature aging and skin cancer. UVA radiation is also responsible for the production of free radicals, which can damage cells and tissues.

Protection

Protection against UVA radiation includes wearing sunscreen that protects against both UVA and UVB radiation, wearing protective clothing, and avoiding sun exposure during peak hours. It is also important to avoid using tanning beds, which emit high levels of UVA radiation.

See also

• UVB radiation
• UVC radiation
• Sunscreen
• Skin cancer

UVA radiation Resources
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