How do I confirm whether radioactive or hazardous contamination screening has already been done on a lot?

Why this matters more than it might seem

Certain scrap sources — old industrial equipment, some medical and research facility decommissioning, and occasionally mixed consumer scrap — can carry radioactive contamination from sources like old smoke detectors, medical isotopes, or industrial gauges. Most is genuinely low-risk, but ports and processing facilities have real detection equipment and zero tolerance for undisclosed contamination.

What screening actually looks like

Radiation portal monitors are standard equipment at many ports and major scrap processing facilities, scanning shipments as they pass through. A seller who regularly exports or sells to major buyers has likely already had material screened as a routine part of their process.

What to ask for and when it matters most

For domestic, smaller-volume purchases, this is a minor concern. For larger shipments, international purchases, or material sourced from industrial or institutional decommissioning, ask directly whether screening has occurred and request documentation if the volume justifies it.

How ScrapTrade Makes This Easier

Listing details on ScrapTrade that specify the material’s source (e.g. “sourced from standard demolition, not industrial decommissioning”) give buyers useful context to judge this risk before requesting formal screening documentation.