The electromagnetic spectrum is considered a continuum of
visible and non-visible energies which radiate different wavelengths
frequencies of light. There are six major regions of EM spectrum as
several intermediates. The major regions include radio, microwave,
light, ultra-violet, x-rays and gamma rays. In a vacuum and moving
spectrum a direct inverse relationship between frequency of the wave
wavelength is seen. As the frequency increases the wavelength
decreases. Due to
the intensity of the waves specific energies can be directly associated
spectrum regions. Energies can range from low energy to very intense
include vibrational, electronic and ionization respectfully.
The region of the EM spectrum of interest, when looking at
ultra-violet. The source for UV radiation, as with all wavelengths of
from the sun. Ultra-violet radiation can reach us directly from the
penetrating the ozone, and epidermis alike. UV light can also reach us
scattering from the sky or even by reflecting off of the ground
the surrounding environment.
Within the region of ultra-violet radiation on the EM spectrum
specific UV radiations can be found, UVA, UVB, and UVC. Overexposure in
range can cause detrimental health affects; however, UVC is the most
The wavelengths of UVC are very short and very large quantum energy
cause ionization. Fortunately for our ozone, ninety-seven to
percent of UVC is blocked; therefore we only have to concern ourselves
protection against UVA and UVB rays.