Quote:
Originally Posted by Yardjass
The thing you quoted says "extremely small". We are talking about the same thing here. The large ones that you can see settle out very quickly and usually don't make it into your lungs. It seems we are in agreement that the tiny ones that they're talking about are the real problem.
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Anything that qualifies as a PM fucks up humans, doesn't matter if it's the small particles or the big sooty ones.