NYC-WTC_000144624
EPA report detailing microscopy methods for assessing asbestos fiber contamination in carpeting.
2 shared non-person entities · 1 shared topics · similarity 0.898
machine-extracted · confidence unavailable · Check page ↗Document / 1 page
NYC-WTC_000199555
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NYC 9/11 Public Portal Document
Evaluation of Two Cleaning Methods for the Removal of Asbestos Fibers from Carpet Page 1 of 1
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AIHA Journal: Vol. 51, No. 9, pp. 500-504.
Evaluation of Two Cleaning Methods for the Removal of Asbestos Fibers from Carpet
John R. Kominsky and Ronald W. Freyberg
PEI Associates, Inc., J J 499 Chester Road, Cincinnati, 01145246
Jean Chesson
Chesson Consuming, J 717 Massachusetts Avenue NW, Suite 601, Washington, DC 20036
William C. Cain, Thomas J. Powers, and Roger C. Wilmoth
United States Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, OH 45268
The effectiveness of dry vacuuming and wet cleaning for the removal of asbestos fibers from carpet, as well as the potential for airborne asbestos fiber reentrainment during carpet cleaning activities, was evaluated. Routine carpet cleaning operations were simulated using high-efficiency particulate air (REPA) filtered dry vacuum cleaners and HEPA-filtered hot water extraction cleaners on carpet artificially contaminated with asbestos fibers. Overall, wet cleaning with a hot water extraction cleaner reduced the level of asbestos contamination in the carpet by approximately 70%. There was no significant evidence of either an increase or a decrease in the carpet asbestos concentration after dry vacuuming. Airborne asbestos concentrations were between two and four times greater during than before the carpet cleaning activities. A reduction in the amount of asbestos in the carpet would suggest a possible reduction in the potential exposure to building occupants.
http;//aiha.alienpress.com/aihaonline/?request=get-abstract&issn=0002-8894&volume=051&issue=09&pa... 3/13/2002
CITY_21MC100_008970715
NYC-WTC_000199555
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NYC-WTC_000199555Source: NYC Law Department, mirrored locally
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