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How is it possible for stratospheric ozone to offer any protection from UV radiation?
Ultraviolet radiation is a portion of the electromagnetic spectrum with wavelengths shorter than visible light. The sun produces UV, which is commonly split into three bands: UVA, UVB, and UVC. UVA is not absorbed by ozone. UVB is mostly absorbed by ozone, although some reaches the Earth. UVC is completely absorbed by ozone and normal oxygen. see related link
Why doesn't uvc reach us?
UVC is entirely absorbed by dead skin cells and is not dangerous. UVC may be a problem on broken skin and if shone direct into the eyes for long periods but as a general killer of virus and bacteria it is very useful. There are no known links between UVC and cancers and by killing virus's it may prevent you getting virus induced cancers.
Which part of the em spectrum can be used to kill bacteria?
Ultraviolet (UV) radiation, specifically UVC light, can be used to kill bacteria. UVC light has a short wavelength and high energy, which damages the DNA and RNA of bacteria, preventing their growth and reproduction. This property makes UVC light an effective tool for disinfection purposes.
What is the difference between UV-A and UV-B?
U.V can be separated according to its energy level and wavelength with UVa having the lowest energy and longest wavelength followed by UVb and ultimately UVc which has the shortest wavelength and highest energy level. You may be familiar with UVa and UVb as the part of the suns rays which cause tanning, aging, and skin cancer. The Sun also emits UVc the most powerful and dangerous type of U.V., fortunately for us most of this is stopped in the upper atmosphere by gasses like ozone.
Why can't you get a sunburn if you're behind glass?
This is not entirely true Even behind glass it is still possible to get sunburned but it takes a lot longer. The reason this is is because sunburn is not only from the brightness of the sun but the UV rays sent from the sun are basically slowly cooking our skin. That's why over exposure to the sun can lead to skin cancer. When behind glass the UV rays are not getting to you, so then its just the brightness of the sun that gives you a sunburn, however when it is just the light burning you it takes much longer to actually burn.
How is it possible for stratospheric ozone to offer any protection from UV radiation?
Ultraviolet radiation is a portion of the electromagnetic spectrum with wavelengths shorter than visible light. The sun produces UV, which is commonly split into three bands: UVA, UVB, and UVC. UVA is not absorbed by ozone. UVB is mostly absorbed by ozone, although some reaches the Earth. UVC is completely absorbed by ozone and normal oxygen. see related link
Why does UVC not affect the skin?
UVC radiation is almost completely absorbed by the ozone layer and does not affect the skin as it doesnt get to us.
What does production plan mean?
prod planning uvc
Which is the most harmful UVB or UVC?
UV-B and UV-C are filtered by the ozone layer present in the atmosphere and only UV-A reaches to the earth which cause the various skin infection. if we talk about the frequency of the UV-B and UV-C the because of the higher frequency the UV-C is more harmful. UV with the wavelength of 253.7 nm is used for its germicidal activity.
What is the definition of the word UVC?
There are two definitions for UVC. One being radiation in the ultraviolet spectrum and is more hazardous than UVB. The second is medical which has essentially the same meaning.
Why doesn't uvc reach us?
UVC is entirely absorbed by dead skin cells and is not dangerous. UVC may be a problem on broken skin and if shone direct into the eyes for long periods but as a general killer of virus and bacteria it is very useful. There are no known links between UVC and cancers and by killing virus's it may prevent you getting virus induced cancers.
Which part of the em spectrum can be used to kill bacteria?
Ultraviolet (UV) radiation, specifically UVC light, can be used to kill bacteria. UVC light has a short wavelength and high energy, which damages the DNA and RNA of bacteria, preventing their growth and reproduction. This property makes UVC light an effective tool for disinfection purposes.
What are 3 types of ultra violet radiation?
UVC UVB UVA
Can webcam work without CD?
If your webcam is UVC - USB Video Class compliant - and If you're running Windows Vista or Mac OSX 10.4 Tiger or 10.5 Leopard - the drivers for UVC webcams are built right into the operating system. No disc or drivers are needed.
What electromagnetic waves must sunscreen protect the skin?
UVa and UVb are considered beneficial to the skin as they are responsible for the production of Vitamin D and certain anti-cancer processes. UVc is considered carcinogenic and therefore anything above that is as well.
Solar radiation warms the surface of the planet and then is radiated back in the form of?
Electro-magnetic Radiant Energy, that can be referred to as the electromagnetic radiation in all the the EM bands. As well, the Solar wind contains physical particles that bombard - in a streaming function - the Surface of the Earth and produce the Aurora Borealis.
How the sun as radiation sources?
The sun has 3 types of wavelengths. UVA (315-400 nm), UVB (280-325 nm), and UVC (180-280). UVA wavelenghts is the type which is the biggest cause of sunburn, skin aging, eye damage, and may even affect immune systems. UVB wavelengths on the other hand are the type more responsible for skin cancers. Only the last, UVC is the least harmful of all as much of it is blocked by the ozone layer and absorbed into the environment before it reaches us.The majority of UV radiation is between 10 and 4. UV radiation is so powerful that you can become sunburned on cloudy days.
