What this relates to
Radioactive material, flammable liquids, fireworks, rat poison and mercury all have one thing in common: they are on the list of dangerous goods of the International Civil Aviation Organization (ICAO). Dangerous goods are objects or substances that pose a risk to the health or safety of humans and the environment.
Example
A consignment of goods is being screened at the airport. The X-ray machine indicates suspicious objects, so the security officer takes the consignment to one side and opens it. The package contains several undeclared spray cans and a can of solvent. The officer sends the entire consignment back to the shipper.
