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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.

What are the three wavelength bands common to ultraviolet radiation?

UV-A, UV-B,and UV-C.

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.

What are the organs most affected (target organs) forUV radiation?


Skin, eyes,and the immune system.

What is the repeated effect of UV-B rays to the skin?


The skinthickens and hardens resulting in a leathery appearance.

What is the spectral range within which the eyes are most sensitive to UV radiation?


210 – 320nm.

What are common waysto limit sun exposure?


Avoidworking in the sun; wear protective clothing; and apply sunscreen.

What is the most effectiveway to control overexposure to natural UV radiation?


Limitexposure time and always ensure sunscreen is properly applied.

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.

Opaque barriers and blocking filters are examples ofwhich type of ultraviolet radiation hazard control method?


Engineering.

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.

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.

What type of IR radiation waves are considered thermal?

Far-IR.

What is the primary source of IR radiation?


Heat orthermal radiation.

Cite the main occupational sources of IR radiationfound within the Air Force.


Heatedmetals, welding arcs, lasers, and paint drying infrared heaters.

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.

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.

List three methodsof IR radiation hazard controls.


Time,distance, and shielding.

What IR radiation hazard control method results in areduction in total dose?


Time

Physical barriers and protective clothing are examplesof what IR radiation hazard control method?


Shielding.

What determines the type of barrier used as a controlfor infrared radiation?


Wavelength.

What is the timeframe upon which TLVs for anoccupational exposure to the eye(s) from near- IR radiation are based?


8-hourworkday.