Radiation evident in linseed oil?

[Joseph Holtum]

Re 14C:

I wonder what sort of 14C signal remains in the atmosphere - as bomb 14C
is 
being diluted by 14C-poor CO2 from fossil fuels. I guess it depends upon 
when the linseed was grown.

One might be able to use the 13C signal - as the 13C:12C ratio of 
atmospheric CO2 is decreasing as a result of fossil fuel-derived CO2.

I seem to remember reading somewhere that a group of researchers tried
to 
use bomb 14C as a tracer for soil carbon turnover and sequestration in 
rainforest soils. I recall that they had great difficulty in detecting a 
signal - sorry, cannot remember the reference.

Joe

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