The three types of UV rays are ultraviolet A (UVA), ultraviolet B (UVB), and ultraviolet C (UVC), categorized by their wavelengths.
- UVA rays have the longest wavelengths, penetrating deep into the skin and contributing to skin aging, wrinkles, and even skin cancer.
- UVB rays, with shorter wavelengths than UVA, are primarily responsible for sunburns and play a significant role in skin cancer development.
- UVC rays, possessing the shortest wavelengths, are almost entirely absorbed by the Earth's ozone layer and do not reach the surface.
While UVA and UVB rays are the most common types encountered on Earth, it's essential to remember that UVC is still a powerful form of radiation that can be produced by artificial sources, such as welding equipment and germicidal lamps.
