On 19/08/2014 19:43, harryagain wrote:
"Nightjar "cpb"@" "insert my surname here wrote in message
...
On 17/08/2014 22:13, Tim Streater wrote:
In article , harryagain
wrote:
...
Who wants slightly radioactive building blocks laced with arsenic and
other heavy metals?

All breeze blocks are slightly radioactive. Granite and coal are too,
more so.

There is also quite good, if circumstantial, evidence that slightly raised
background radiation levels are good for human health.

That'll be why they done away with luminous waches and trimphones then?



That was done for the _fear_ of radiation - that doesn't prove there is
any danger.

Andy