Radiological Protection Ordinance
(RPO)

1 If con­cen­tra­tions of ar­ti­fi­cial ra­di­o­nuc­lides in the en­vir­on­ment are de­tec­ted which could lead to an ef­fect­ive dose of more than 10 µSv per year for a giv­en ex­pos­ure path­way and for mem­bers of the pub­lic, the FOPH shall seek to identi­fy the cause.

2 If the ra­di­o­nuc­lides were dis­charged by an en­ter­prise which has a li­cence, the FOPH shall in­form the su­per­vis­ory au­thor­ity con­cerned. Where pos­sible and ap­pro­pri­ate, this au­thor­ity shall re­quest the im­ple­ment­a­tion of op­tim­isa­tion meas­ures to re­duce the dis­charge.

3 If the ra­di­o­nuc­lides were dis­charged by an en­ter­prise which does not have a li­cence, if the ra­di­o­nuc­lides ori­gin­ated abroad, or if the cause is un­clear, the FOPH shall ap­pro­pri­ately sup­ple­ment its meas­ure­ment pro­gramme, if ne­ces­sary, and in­form the pub­lic.