Almost all of the UV radiation that reaches the Earth’s surface is caused by the sun. Most of this type of radiation is UVB. This kind of radiation is lethal to marine plankton, and is responsible for the thinning of the ozone layer. It can also penetrate deep into the ocean and affect connective tissue and blood vessels. This radiation is a leading cause of skin cancer and premature aging. However, some types of medications, chemicals, and building surfaces reflect ultraviolet radiation. For instance, white paint and light colored concrete are highly reflective, and metallic surfaces tend to reflect ultra-violet light.
Type of UV radiation
The sun emits ultraviolet light, which is absorbed by the ozone layer before reaching the earth’s surface. Some man-made sources of UV radiation are regulated to limit the intensity to a minimum, and may require special guards. The second type of UV radiation is known as medium wave UV, which is a form of radiation that causes erythema and skin burns. Long-term exposure to UV rays increases the risk of skin cancer and other skin diseases.
Energy of ultraviolet radiation’s
While the wavelengths of these rays vary widely, the ultraviolet radiation’s energy is enough to break chemical bonds. It produces a vacancy in the atom, which alters the chemical properties of the atom. While this is useful for some industries, it can be harmful for living tissues and the environment. Nevertheless, UVB and UVC radiation are important tools for industrial processes, as they can be used for disinfection.
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