But one will slowly have trouble with breathing.

COPD as they say - and black lung on non-smokers.

Furnace and foundry work is harsh. Mowing and
breathing in sand dust. Living in some areas of
the world and breathing the air with blowing dust / sand...

Martin

On 3/13/2011 8:44 PM, Winston wrote:
Larry Jaques wrote:

(...)

ALL DUST, organic and inorganic, is deadly to human lung tissue.

Perhaps 'deadly' is too strong a word? I've cleaned up some
*extremely* dusty places without protection and suffered coughing,
wheezing and other entertaining sound effects and I'm still kicking.

If I had it to do over, I would have donned a respirator but
I'm older and more cowardly now.

Lesson learned. Catastrophe luckily avoided.

--Winston