Iodine-131 update 6

  21 April 2011

The Scottish Environment Protection Agency (SEPA) has an ongoing comprehensive monitoring programme for radioactivity in Scotland, and has increased the level of scrutiny to provide ongoing public assurance.

The latest set of 10 results from air samplers in Scotland, cover 4 – 18 April.

Air monitors have continued to show very low concentrations of iodine-131 and other radionuclides. The concentrations are of no concern to human health and all results reported to date are below the levels where regulatory action would be necessary.

SEPA will continue to monitor the environment and will provide the information to the Scottish Government and the public.

The monitoring data is available on the Health Protection Agency's (HPA) website. 

Due to the continued and decreasing low concentrations the frequency of reporting will change, initially from weekly to fortnightly. The next set of available results will be published on 5 May.


Notes to editors

  • Air filter samples are typically changed every seven days, but not all locations are changed at the same time, and the time taken to analyse them can vary due to geographical distance from the laboratory.
  • There are 15 results in total. Of these 10 are new and 5 are revised results from previously reported values following quality assurance checks. The overall trend has remained low throughout and the results have been included for completeness.