A number of premises use small amounts of radioactive materials. Examples include americium 241 used in smoke detectors and Polonium 210 used in dust detection and anti-static devices.
All these premises are registered with the Environment Agency under the Radioactive Substances Act 1993. The Environment Agency is obliged to send a copy of the certificate for each premises to the relevant local authority.
The main concern about radiation in the last few years is radiation from mobile phone masts.
Mobile phone companies must submit a certificate with each application for a mask to prove that the levels are not exceeded.
Schools who are concerned about the radiation levels within the school grounds can request measurements to be carried out by Ofcom. A database of radiation levels at schools is being compiled.