NYC-WTC_000219982

NYC 9/11 Public Portal Document

SciLabJob#: 201092729 Page 2 of 3 Client Name; Hygienerics Environmental, Inc. Phase Contrast Microscopy (PCM) Fiber Results o 2060.035; Stellar Management o Flow Air Fiber Fibers SciLab Client Rale Duration Filtered Density _ Cone. Sample tt Fields Fibers TWA £L Sample #/Location Collected (Uiers/tnin.) (min.) (liters) (Fibers/mm^ ) (Fibers/cc)

16 92101851-16 9/21/01 10 86 860 100 4 5.10 <0.003 Nonhcasl Comer, 4lh Floor 17 92101851-17 9/21/01 10 79 790 lOO 7 8.92 0.004 Soulheajl Comer. 4ih Floor 18 921018SI-I8 9/21/01 IO 85 850 100 3 3.82 <0.003 Center @ Elevators, 4lh Floor (M □ 19 92101851-19 9/21/01 10 86 860 100 4 5.10 <0.003 Northrvest Comer. 4th Floor 20 92101851-20 9/21/01 10 85 850 lOO S 10.19 0.005 n Southwest Comer. 4th Floor P sfy 21 92101851-21 Northwest Comer, 6lh Floor 9/21/01 10 70 700 100 2 2.55 <0.004

22 92101851-22 9/2I/0I 10 70 700 100 8 10.19 0.006 SoutNwesl Comer, 61h Floor 23 92101851-23 9/21/01 10 70 700 100 15 19.11 o.on

I u 24 Center al Pile Cabinets, Hall, 6th Floor 92101851-24 Southeast Comer, 6lh Floor 9/21/01 10 72 720 100 7 8.92 0.005

iL 25 92101851-25 9/21/01 10 72 720 100 7 8.92 0.005

I tn Northeast Comer. 6th Floor

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NYC-WTC_000219983