Guest guest Posted January 30, 2006 Report Share Posted January 30, 2006 At last, a proposal to do something. With all the talent we have here we should be able to accomplish something that is both accurate and useful. Carl Grimes Healthy Habitats LLC ----- > Carl, > > Last week, I had conversations with Jim and Darryl on this specific > subject. Darryl and myself have a considerable amount of data which > include the 2.5 µ numbers. Something we need to do more research on > and consider during our IAQ surveys. A research project for this > summer? I can put together a data base that can be circulated to IEQ > members who want to contribute to this research. They then can input > their particle count data and mold spore levels and genera/species. > We will then conduct a statistical analysis. Any one interested? > > The first rule may be that indoor levels of particulates by size > specific ranges in an adequately filtered building should not exceed > outside level (in the infiltrating or OA supply air) unless there is > an IAQ problem. > > Any comments, on rule #1? Research volunteers? > > > Bob > > > > > FAIR USE NOTICE: > > This site contains copyrighted material the use of which has not > always been specifically authorized by the copyright owner. We are > making such material available in our efforts to advance understanding > of environmental, political, human rights, economic, democracy, > scientific, and social justice issues, etc. We believe this > constitutes a 'fair use' of any such copyrighted material as provided > for in section 107 of the US Copyright Law. In accordance with Title > 17 U.S.C. Section 107, the material on this site is distributed > without profit to those who have expressed a prior interest in > receiving the included information for research and educational > purposes. For more information go to: > http://www.law.cornell.edu/uscode/17/107.shtml. If you wish to use > copyrighted material from this site for purposes of your own that go > beyond 'fair use', you must obtain permission from the copyright > owner. Quote Link to comment Share on other sites More sharing options...
Guest guest Posted January 30, 2006 Report Share Posted January 30, 2006 Hello Carl, I would be very interested in exchanging my data with you. I have two met one 227B Air particle counters and I measure at the 0.5um and 3.0um size both in indoor work areas (about 1.6 meters high)and within admission or insuflation ducts. I always take into regard the type of filter used and age of air duct system. Other measured at the same time are temperature and humidity levels. I am based in Europe (Portugal) and have data for more than 50 buildings both morning and afternoon levels along with outdoor data. I am now measuring PM10 levels. If interested please respond. All the best, Gerard Análises do Ar Ambiente Lda Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 1, 2006 Report Share Posted February 1, 2006 Dave, You can find information on the shedding of skin cells and fibers from cloths in articles on clean rooms. FYI in area under your chin sheds the most amount of skin per day! There are some articles in the IH literature on photo copiers and paper cutting. Bob Quote Link to comment Share on other sites More sharing options...
Guest guest Posted February 1, 2006 Report Share Posted February 1, 2006 Ive sampled with a TSI ultrafine particle meter for deisel (mainly to ID sources in a bus depot) Its actually quite amazing to take the particle counter out in the street and see levels rise to as high as 50,000 particles per cubic centimeter just from a truck passing by. Recent research indicates that number of particles (not just mass) has health implications (cardiovacular and respiratory. The meter really brought the message home to me about the danger (and wide spread implications) of deisel exhaust. Alice Freund Industrial Hygienist Mount Sinai School of Medicine Department of Community and Preventive Medicine 1 Gustave Levy Place Box 1057 NY, NY 10029 Phone: Fax: alice.freund@... Re: RE: particle counting Carl, Last week, I had conversations with Jim and Darryl on this specific subject. Darryl and myself have a considerable amount of data which include the 2.5 µ numbers. Something we need to do more research on and consider during our IAQ surveys. A research project for this summer? I can put together a data base that can be circulated to IEQ members who want to contribute to this research. They then can input their particle count data and mold spore levels and genera/species. We will then conduct a statistical analysis. Any one interested? The first rule may be that indoor levels of particulates by size specific ranges in an adequately filtered building should not exceed outside level (in the infiltrating or OA supply air) unless there is an IAQ problem. Any comments, on rule #1? Research volunteers? Bob FAIR USE NOTICE: This site contains copyrighted material the use of which has not always been specifically authorized by the copyright owner. We are making such material available in our efforts to advance understanding of environmental, political, human rights, economic, democracy, scientific, and social justice issues, etc. We believe this constitutes a 'fair use' of any such copyrighted material as provided for in section 107 of the US Copyright Law. In accordance with Title 17 U.S.C. Section 107, the material on this site is distributed without profit to those who have expressed a prior interest in receiving the included information for research and educational purposes. For more information go to: http://www.law.cornell.edu/uscode/17/107.shtml. If you wish to use copyrighted material from this site for purposes of your own that go beyond 'fair use', you must obtain permission from the copyright owner. Quote Link to comment Share on other sites More sharing options...
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