Dear Paul, Micron sizing is done for diamond abrasive powder ! 0-2 is used for polisching diamonds and 2-16 micron is used for grinding diamonds . Separation is done by different sedimentation speeds in 30 cm water, according the size. Density is 3,4 for diamonds ! Carbon 2,5-10 u can go in and out the nose . The submicron goes through the lung bubles into the bloodstream. Clean carbon is inert,not reactive , but fatty PAC s=POLY AROMATIC CARBONS particles are cancerogens as naftalene and antracene and 50 other . Each is studied in ROSTOK Germany with 50x50 mices and cancer noted . For there dangerous COCKE factories distilling mined coal ..
10-25 u is heavy powder . 50-100 u are visible grains for myopers D6 ; 100u =0,1 mm paper thicknes .Detectable to nose and eye with 10 mg. CATARACTS see google (cataract wickepedia ) It is proteine coagulation alike by sorbitol and many more like tannine and for stovers METHANOL is causing BLINDNES by drinking home brew spirits containing a litle bad alcohols ;reduced to aldehyde are killers .. Also dry wood destilation gives methanol vapor , dangerous to inhale . PM are not the cataract danger . Age and food are. But in the west you get a new acrylate lens in 15 minutes . A broken eyesensor can be welded by a green laser and even a macula hole into the sensor can be repaired with two operations an two months sil-oil into the eye bol ! Remember :If you see flashes ;you must hurry to go to the eye Dr for welding!!! PM 2,5 importance ? Pro analyse carbon --------> miners dust lung . Naftalene crystals growing out of old bitume is very cancerous by contact . So size plus product in moleculs purety is important . Regards Frans Onderwerp: [Stoves] Between PM 2.5 and PM 10 Stovers, Please tell me or direct me to an explanation of the impact of the PM that is BETWEEN PM 2.5 and PM 10. I believe that the experts say that under 2.5 is the bad stuff for respiratory health, and that over 10 is not sufficiently important even to be measured. Is PM size 10 to 25 (twenty five) ( 50 or 100) "visible"? Detectable to the nose or eyes? What causes cataracts? How important is the PM larger than 2.5? Please forward this inquiry to the stove-medical people who are not readers of this Listserv. Paul _______________________________________________ Stoves mailing list to Send a Message to the list, use the email address [email protected] to UNSUBSCRIBE or Change your List Settings use the web page http://lists.bioenergylists.org/mailman/listinfo/stoves_lists.bioenergylists.org for more Biomass Cooking Stoves, News and Information see our web site: http://stoves.bioenergylists.org/
