Well toxic stuff broken into smaller particules has been used before to fly below the radar of control, as with asbestos in france iirc (or it was the minimum accountable particule size that has been chosen high). The precision of the measure naturally filters out smallest particules. The (very general) principle is, a 1g particule is accounted for as a bad particule, but 100 000 particules of 0.01 milligram each are not accounted at all (in the case of asbestos, it is the length).
Those smallest particules are yet considered the most harmful (they can get deeper in the human system), and still get out of accounting... Scary way of proceeding imho
Slashdot Mirror
Well toxic stuff broken into smaller particules has been used before to fly below the radar of control, as with asbestos in france iirc (or it was the minimum accountable particule size that has been chosen high). The precision of the measure naturally filters out smallest particules. The (very general) principle is, a 1g particule is accounted for as a bad particule, but 100 000 particules of 0.01 milligram each are not accounted at all (in the case of asbestos, it is the length).
Those smallest particules are yet considered the most harmful (they can get deeper in the human system), and still get out of accounting... Scary way of proceeding imho