Dear Paul, PM is Micron PARTICLE SIZE MATTER not Total mass weight ! Matter SEPARATES in two :the ether soluble oils and crystals PACs and the non soluble PARTICLES refered to CLEEN CARBON . The name is CARBON and the DANGER comes from the oil attached to the carbon or without carbon . Compairing can be done in massa weights totals. But compairing danger must be done between dangerous molecules massa only . Massa from evaporated ether extracts of blacking ether after extraction the masses from special ultra filters in aspirators with known M3 /h . Exemple Room 20 M3 Aspirator 100 m3/h clean filter 1 gram ; Filter after 24 h =2 gram Wash the filter in 100 ml methylether . 0,5 gram washed carbon and O,5 gram peck is the result after evaporating the ether . Repeat the test with 10 smokers smoking 100 sigaretes a day together stat the coockfire woodstove .
Now you can calculate and compare and disscus science .! Mind CANCER is a RISK ! Cigarettes +asbest is not 2 but 4 ! EXPONENTIAL RISK . Exclude cigarettes and make a good chimney ... Thermites can ! Regards Frans I think someone told me that <2.5 PM cannot be seen. But if there is a lot of it, is it visibly detectable (like the haze of a smoky room, or is that just the larger particles that we are seeing?) Related question: For a small child besides it mother in a smoky cooking shack, cooking "typically" 2 - 3 times per day, what is the "equivalent" as expressed in cigarettes smoked per day? And can that be expressed as equivalent of SECONDARY smoke from being in a room with smokers in it (but that becomes confused because of room size and number of smokers in it)? I am trying to visualize this as a mother/cook smoking cigarettes, and as a baby or a 2-year old child smoking cigarettes (an unnatural but powerful visual image). 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/
