What is the transportation surface contamination limit for beta, gamma, and low-toxicity alpha emitters?

The established transportation surface contamination limit for beta, gamma, and low-toxicity alpha emitters is 240 disintegrations per minute per square centimeter (dpm/cm²). This limit is set to ensure safety during the transport of radioactive materials and is based on regulatory guidelines that require minimizing exposure to personnel and the environment.

The rationale for this specific limit is built on balancing the need for handling radioactive materials in a practical manner while also prioritizing health and safety. Levels higher than 240 dpm/cm² could signify a risk of exposure that goes beyond acceptable safety margins, which could potentially endanger transportation workers and the public.

Adhering to this limit aids in maintaining regulatory compliance and reinforces the importance of thorough monitoring and safety protocols in handling radioactive substances.