Radioactive substances

Radioactive Substances: Substances that emit ionizing radiation.
Radioactive Waste: Any waste that emits energy as rays, waves, streams or energetic particles.

Radioactive Substances: Substances that emit ionizing radiation.
Radioisotopes: Chemical variants of radioactive elements with potentially oncogenic, teratogenic, and mutagenic effects on the human body.

Exemption Orders were made under the UK Radioactive Substances Act 1960 as statutory instruments , now superseded by the Radioactive Substances Act 1993 (despite this, the orders remain legally valid).

The contamination of any material, surface, environment or person by radioactive substances.

See also: Radioactive, Media, Radiation, Radioactive decay, Half-life