Question

Compare tanning effects produced on the skin by uv radiation incident directly on the skin and that coming through glass window

Answer 1

Glass windows effectively block most UVB rays and some UVA rays, however some UVA rays can still penetrate through glass windows and cause skin damage. Tanning through a window is greatly reduced due to it blocking much of the UV rays which cause tanning.

Answer 2

Glass windows successfully block most UVB rays and some UVA emissions; however some UVA rays can still enter through glass windows and cause skin injury. Tanning through a window is greatly reduced due to it blocking much of the UV rays which cause tanning.

Tanning, or the darkening of skin when exposed to sun, is a protective response. Melanin, the dark pigment responsible for darkening skin, is believed to protect skin cells from damage caused by ultraviolet radiation in sunlight by absorbing the radiation. This study's findings focus on how UVA rays lead to darkening.