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22 Cards in this Set
- Front
- Back
List the wavelength associated with the ultravioletradiation region of the electromagnetic spectrum. |
100 – 400nm. |
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What are the three wavelength bands common to ultraviolet radiation? |
UV-A, UV-B,and UV-C. |
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Why are UV-B rays considered the most destructive form of UV radiation? |
They haveenough energy to cause photochemical damage to cellular DNA, but not enoughenergy to be completely absorbed by the atmosphere – like UV-C rays. |
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What are the organs most affected (target organs) forUV radiation? |
Skin, eyes,and the immune system. |
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What is the repeated effect of UV-B rays to the skin? |
The skinthickens and hardens resulting in a leathery appearance. |
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What is the spectral range within which the eyes are most sensitive to UV radiation? |
210 – 320nm. |
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What are common waysto limit sun exposure? |
Avoidworking in the sun; wear protective clothing; and apply sunscreen. |
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What is the most effectiveway to control overexposure to natural UV radiation? |
Limitexposure time and always ensure sunscreen is properly applied. |
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When considering non-solar sources of UV radiation,what measures can be used to keep risks to a minimum? |
Engineeringcontrols, administrative controls, and personal protective equipment. |
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Opaque barriers and blocking filters are examples ofwhich type of ultraviolet radiation hazard control method? |
Engineering. |
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Describe the type of clothing outdoor workers shouldwear to protect against UV radiation? |
Loosefitting, made of closely woven fabric and provides protection to the neck andpreferably the lower arms and legs. |
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What do the TLVs associated with an occupationalexposure to UV radiation represent? |
Theconditions under which it is believed that nearly all healthy workers may berepeatedly exposed without acute adverse health effects. |
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What type of IR radiation waves are considered thermal?
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Far-IR. |
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What is the primary source of IR radiation? |
Heat orthermal radiation. |
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Cite the main occupational sources of IR radiationfound within the Air Force. |
Heatedmetals, welding arcs, lasers, and paint drying infrared heaters. |
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List the most prominent effects associated withoverexposure to near-IR. |
Acute skinburn; increased vasodilation of the capillary beds; and an increasedpigmentation that can persist for long periods of time. |
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What are the biological effects to the eyes fromexposure to UV radiation in the spectral range of 1400––3000 nm? |
Aqueousflare, corneal burn, and thermal cataract. |
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List three methodsof IR radiation hazard controls. |
Time,distance, and shielding. |
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What IR radiation hazard control method results in areduction in total dose? |
Time
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Physical barriers and protective clothing are examplesof what IR radiation hazard control method? |
Shielding. |
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What determines the type of barrier used as a controlfor infrared radiation? |
Wavelength. |
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What is the timeframe upon which TLVs for anoccupational exposure to the eye(s) from near- IR radiation are based? |
8-hourworkday. |