How should radioactive waste be classified and labeled, and what are the typical storage requirements?

• A. Classify by activity, half-life, and isotope; label with radiation symbol, isotope, and activity; store in clearly labeled containers in designated areas, segregated by short/long half-life and waste type.
• B. Classify by color, and store randomly.
• C. Label only with 'hazard' and store in any container.
• D. Do not label to avoid alarm.

Answer: (A)

The key idea is to communicate what the waste is and how hazardous it is so anyone handling it can respond safely and follow the right disposal path. This means classifying by activity, half-life, and isotope because those factors determine how dangerous the waste is, how long it remains hazardous, and what kind of shielding or containment is needed. Labels should include the radiation symbol, the specific isotope, and the activity (and often generation date) so workers can quickly assess risk and track quantities for disposal.

Storage is next: place waste in clearly labeled containers in designated areas, and keep different wastes separate by half-life and waste type. This reduces exposure, prevents cross-contamination, and helps plan for decay or disposal steps. This approach is essential for safety and regulatory compliance.

Color coding alone doesn’t convey the necessary radiological information, random storage increases risk, generic labels like "hazard" omit critical details, and not labeling at all is unsafe and non-compliant.