On 23/01/14 18:17, dennis@home wrote:
On 23/01/2014 11:17, harryagain wrote:

What about Gallium in semi-conductors?
All mining causes pollution.
Some is exceptionally polluting.


but not nuclear, its very well contained and safe.

I think you mean "but not nuclear which is very well contained and safe."

You obviously have never been near a mineral mine or smelting operation...

gallium for example is a trace elemennt found typically with zinc

very much an activity (zinc mining) that causes considerable
environmental pollution and very long term pollution. Zinc and lead
unlike radioactive materials do not decay at all..

http://www.lenntech.com/periodic/ele...ts%20of%20zinc


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