NYC-WTC_000195849

NYC 9/11 Public Portal Document

NYC ReL,_^e Asbestos Air Sampling Results at Fixed Locations Sampling Date and Time; 09/27/01 1200 noon to 2400

PCM by NIOSH T400 TEMbyNIOSH7402 TEM (AHERA) Sampling Sampling Sample f/mm’ f/cc AF/NAF Adjusted Structures (#) I S/mm^ I S-f/cc* Date Sample No. Location Volume Matrix TEMf/cc <5u >5u

9/27/01 01507 A 720 Air

I 7.64 0.OQ4 0/B <0.004 . <8,89 <0.0048 9/27/01 01508 B 720 Air 20.38 0.011 0/15.5 <0.004 <8,89 <0.0048 9/27/01 01509 Cl 720 Ait <7.0 <0.004 ..Sil. <0.004 <8,89 <0.0048 9/27/01 02752 D___ 720 Air <7.0 <0.004 0/2.5 <0.004 8,89 0.0048 9/27/01 02756 E___ 720 Air <0.004 0/1 <0.0D4_ 17,78 0.0095 -SLO- 9/27/01 02757 720 Air 17.83 0.009 9/27/01 9/27/01 01510 02751 _F_ H I 720 720 Air Air <7.0 <0.004 0/6 -O/L- <0.004 <0.004 £ 17,78 <8,89 0.0095 <0.0048

I 14.01 0.007 0/3.5 <0.004 8,89 0.0046 9/27/01 01506 _J___ 720 Air 8.92 0.005 0/4 <0.004 <8,89 <0.0048 9/27/01 02753 K 720 Air 7.64 0.004 0/0 <0.004 <8,89 <0.0048 9/27/01 02760 _L_ 720 Air <7.0 <0.004 0/2 <0.004 <8,89 <0.0048 9/27/01 02762 N 720 Air <7.0 <0.004 <0,004 8,89 0.0048 9/27/01 02761 M 720 Air <7.0 <0.004 0/1.5 <0,004 <6,69 <0.0048 9/27/01 02754 P 720 Air 14.65 0.008 0/0 <0,004 <8,89 <0.0048 9/27/01 NS R Air 9/27/01 02755 S 720 Air <7.0 <0.004 V S!L <0,004 0 <8,89 <0.0048 9/27/01 02758 Q 720 Air 10.19 0.005 - 2!2. <0.004 0 17,78 0.0095 9/27/01 02759 Q-Dup 720 Air <7.0 <0.004 0/1 <0.004 0 <8.89 <0.0048 toe# 04174 •• Cyrysotile

Sampling Locations; NS; Not sampled A: NE corner of West Broadway & Barclay AF/ANF: Asbestos flbers/Non asbestos fibers B: SE corner of Church & Dey St. Sample volume Is below recommended limit of the method: C: Trinity (a.k.a. Church) & Liberty •Structure (S) roughly equivalent to fiber (I) C1: SW corner of Broadway & Liberty St. D: East end of Albany St. at Greenwich St. NA; not analyzed due to overloading of particulates E; Western end of Liberty St. at South End Ave F; Northern median strip of Vesey & West St G: Church and Duane St. H; South side of Chase Manhattan Plaza at Pine St. I: SE corner of Wall St. & Broadway J: N E corner of Warren & West St. K; West St. & Albany in median strip L: On walkway toward North Park rec area (north side of Stuyvesant High), access to TAGA bus area M: Western end of Harrison St. at West SL (on tree next to bulkhead) N; South side of Pier 25 (next to volleyball court) ERT; 09/30/01 9.50 AM P: NE corner of South End Ave. & Albany o Q: Barclay & West St. (center island) in proximity to USCG command post R: TAGA Bus Location 1^ S: Rector & South End I ts3

s NIOSH 7400: Fiber Analysis of Air Samples via NIOSH 7400, Revision 3, Issue 2,8/15/94 o NIOSH 7402: Asbestos Analysis of Air Samples by Transmission Electron Microscopy o Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) Standard criteria: EPA 40CFR Part 763 (AHERA): 0.01 flber/cc (PCM), 70 S/mm’, volume 1200 L, for 25 mm filter (TEM) S i FL-og-”’ 11 a

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NYC-WTC_000195849