Is radiation from the sun harmful?
UVB radiation is responsible for the production of vitamin D in our bodies, but overexposure to this radiation causes damage to the skin, mostly the top layer, resulting in skin cancer, sunburns, and even cataracts..
What are 4 types of radiation from the sun?
Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays.
Where does the sun emit most of its radiation?
Its output at the longest (radio) wavelengths is much less than its output at visible wavelengths; conversely, the Sun’s short-wavelength X-rays come only from the hottest and most active parts of its outer atmosphere, the corona.
Which is the most dangerous radiation?
Gamma raysGamma rays are the most harmful external hazard. Beta particles can partially penetrate skin, causing “beta burns”. Alpha particles cannot penetrate intact skin. Gamma and x-rays can pass through a person damaging cells in their path.
What type of radiation reaches the earth’s surface?
ultraviolet radiationMost of the solar radiation that reaches Earth is made up of visible and infrared light. Only a small amount of ultraviolet radiation reaches the surface.
How much radiation does the sun emit?
Sources indicate an “Average over the entire earth” of “164 Watts per square meter over a 24 hour day”. The ultraviolet radiation in sunlight has both positive and negative health effects, as it is both a requisite for vitamin D3 synthesis and a mutagen.