What are the three types of contamination?

What are the three types of contamination?

• A. Fixed contamination, loose contamination, and discrete radioactive particles
• B. Acute contamination, chronic contamination, and transient contamination
• C. Internal contamination, external contamination, and surface contamination
• D. Surface contamination, airborne contamination, and environmental contamination

Answer: (A)

The way contamination is described here focuses on how the radioactive material exists and can move on surfaces. Fixed contamination is material that sticks to a surface and isn’t easily removed, so it tends to stay put unless deliberate cleaning is done. Loose contamination, on the other hand, is readily removable; it can be wiped away or brushed off, which means it poses a higher risk of spreading if not contained and cleaned properly. Discrete radioactive particles are individual particles that contain radioactive material; they aren’t a film on a surface but separate particles that can become hazardous if inhaled, ingested, or otherwise released into the body. Other classifications talk about different ideas, like how long exposure lasts or where contamination resides relative to the body, but they don’t capture the practical ways contamination behaves on surfaces and in the environment the way fixed, loose, and discrete particles do.

The way contamination is described here focuses on how the radioactive material exists and can move on surfaces. Fixed contamination is material that sticks to a surface and isn’t easily removed, so it tends to stay put unless deliberate cleaning is done. Loose contamination, on the other hand, is readily removable; it can be wiped away or brushed off, which means it poses a higher risk of spreading if not contained and cleaned properly. Discrete radioactive particles are individual particles that contain radioactive material; they aren’t a film on a surface but separate particles that can become hazardous if inhaled, ingested, or otherwise released into the body.

Other classifications talk about different ideas, like how long exposure lasts or where contamination resides relative to the body, but they don’t capture the practical ways contamination behaves on surfaces and in the environment the way fixed, loose, and discrete particles do.