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<br />Elk River Parks & Recreation <br />Indoor Air Quality Assessment <br />lEA Project No. 7805-1301 <br /> <br />Page 11 <br /> <br />Concentration Qualitative Assessment <br />(colony forming units/eram) of Funeal Counts in Carpet Dust <br />< 100,000 Not a significant presence of fungal spores. <br /> Ho\vever, there may still be an indication of interior gro\vth if dominant* or <br /> upper-ranked taxa are associated \vith gro\vth on moisture-impacted building <br /> materials. <br />100,000 to 1,000,000 Suggestive of Fungal Gro\vth if dominant* or upper-ranked taxa are <br /> associated \vith gro\vth on lTIoisture-impacted building materials. <br /> Or <br /> Suggestive of Migration from the outdoors if dominant taxa are COl1lmOn <br /> outdoor fungi, The greater the fungal count levels, the greater the likelihood <br /> that the carpet should be considered dirty. <br />> 1,000,000 Indicative of interior Fungal Gro\vth if dominant* or upper-ranked taxa are <br /> associated \vith gro\vth on moisture-impacted building nlaterials. <br /> Or <br /> Inadequate removal of outdoor fungal spores through cleaning if dominant <br /> taxa are C0111nl0n outdoor fungi. <br /> <br />* For this table, dominant is defined as constituting greater than fifty percent of the total fungal concentration. <br /> <br />1. Ne\v Yark City Department of Health, 2000. Guidelines on Assessnlent and Relllediation oj Fungi in <br />Indoor Enviro1l1nents. <br />2. ACGIH, 1999. Bioaerosols: Assessnlent and Control, S7.4.2 Fungi <br />3. American Public Health Association - Committee on Microbial Contanunation of Surfaces (adjustnlent of <br />guidelines by lEA and N. G. Carlson). <br />4. Hodgson, Mark and Scott, Richard. "Prevalence of Fungi in Carpet Dust Samples." Page 268-274, Bioaerosols, Fungi, <br />and Mycotoxins: Health Effects, Assessnlent, Prevention and Control, 1999. <br /> <br />C:\Documents and Settings\tallard\Local Settings\Temporary Internet Files\OLKF\attach to 5 8.doc <br />