NYC-WTC_000205343

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Results for Staten Island LandRII Sampling Dale and Time: 10/07/01 1930 to 10/08/01 0730

_________ TEM AHERA) Sampling Sampling Sample f/mnr f/cc S/mm’ Structures (#) S-f/cc* Date Sample No. Location Volume Matrix O.Sp - 5p 10Z7-10/B 02935 #1 661.6 Air 12.74 0.007 • 0 <8.00 <0,0047 ; 10/7-10/8 02936 #2 660.7 Air <7.0 <0.004 0 <8.00 <0,0047 i 10/7-10/8 02937 #3 485,7 Air <7.0 <0.006 0 <8.00 <0,0063 10/7-10/8 02938 #4 663,2 Air <7.0 <0.004 0 <8.00 <0,0046 10/7-10/8 02939 #5 663,6 Air <7.0 <0.004 0 <8.00 <0.0046 10/7-10/8 02940 #6 496 Air <7.0 <0,005 0 _ <8.00 <0.0062 10/7-10/8 02951 #7 671 /Mr <7.0 <0,004 0 <8.00 <0.0046 10/7-10/8 02952 #8 670 /Mr <7.0 <0,004 0 <8.00 <0.0046 10/7-10/8 02953 #9A S46.9 Air <7.0 <0,005 0 <8.00 <0.0056 10/7-10/8 02954 #98 662 /Mr 20.38 0,012 3“ 40 0.0233 10/7-10/8 02955 670,2 /Mr 12.74 0.007 0 8 10/7-10/8 02956 #10 620 /Mr 0.0046 7;64 0.005 0 <8.00 c6c#04608 <0.0050 ** Chrysotile

NS: Not sampled Sample volume Is below recommended limit oftfie method; ■ -7;':

'Structure (S) roughly equivalent to fiber (!) NA: not analyzed due to overloading of particulates IIOSH 7400: Fiber Analysis of Air samples via NIOSH 7400, Revision 3, Issue 2,8/15/94 isbestos Fiber Analysis' by Transmission Electron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) tandard criteria: EPA 40CFR Part 763 (AHERA): O.OTfiber/cc (PCM). 70 S/mm’. volume 1200 L. for 25 mm filler (TEM)

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ERT: 10/09/01 9:50 AM >•7

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NYC-WTC_000205343