OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
■■ illilllliil
Number of Additional Cleaning Events Required based on Sampling Method’* i
Compound Sampling H fethod(s) Number ofAtMitional Percentage Cleaning Events Air, Micro vacuum and Wipe 11 Asbestos Air via PCMe 82%
Lead Wipe 3^
■B Micro vacuum 11 9%
MMVFy Air 3: 27% Silica Air ii PAH /Wipe/Y/-: 0: 0%
nioxin Wipe illii ■ Table 14.0 indicates the number of additional cleaning events that were required based on the results from the post-cleaning event samples for the residential units by compound and sampling method. The data indicates that using asbestos air sampling with PCMe analysis accounted for the most number of additional cleaning events. Overall, the data suggest that the use of asbestos air sampling as a surrogate testing method is generally a conservative methodology to use to determine if further cleaning is warranted.
^®The percentages listed in the right-hand column sum to greater than 100% because several of the units had more than one compound above a health-based benchmark after a cleaning event. 114
CITY_21MC100_011105344
NYC-WTC_000195310
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machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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