nuclear-news

How did cs137, a fission product get into the Indonesian shipping container?

Dennis LENEVEU, 22 Aug 25,

Re: [Nuclear Waste Watch] US FDA guidance on health impacts of cesium exposure.

 Indonesia has only research reactors. If the cs137 contamination came from these small reactors what about all the large reactors such as CANDUs that have continual measured stack releases of beta gamma particulate that would contain cs137 that is volatile?

CANDUs emit large amounts of carbon 14 that has been measured at elevated levels in tree rings around Pickering. Cs137 would also be expected to be in tree rings wood. Wood is used as shipping containers and many other uses such as furniture and interior housing lumber and wood.

Both carbon 14 and cs147 are known to off gass. C14 is particularly a problem being a beta emitter that would never be measured. Cs137 is a gamma emitter that is easily measured with a Geiger counter. Carbon 14 off gassing has been documented in the Bruce low and intermediate level waste facility but is not routinely measured.

Huge amounts of carbon 14 has been deposited around reactors for years. Carbon14 accumulates in the biosphere. With a half life of 5730 years it’s all still around gradually building up in the environment. The stack releases allowed for reactors are based on airborne exposure only. The carbon 14 is greatly dispersed in the air but settles out and deposits in the environment. Gradual bioaccumulation is ignored in regulations for emission standards. 

August 24, 2025 - Posted by Christina Macpherson | Canada, environment, Indonesia