NYC-WTC_000205419

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Results at Fixed Locations Sampling Date and Time: 10/05/01 (1200) to 10/05/01 (2400)

PCM by NIOSH 7400 TEM (AHERA) Sampling Sampling Sample f/mm’ f/cc Structures (#)* S/mm^ S-f/cc* Date Sample No. Location Volume Matrix O.Sp-Sp >5p

10/5/2001 05191 A 1440 Air 28.03 0.007 NA NA NA NA 10/5/2001 05192 B 1440 Air 26.75 0.007 0 0 <15.50 <0.0041 10/5/2001 05193 C 1 1440 Air 7.64 0.002 0 0 <15.50 <0.0041 10/5/2001 05196 D 1440 Air 29.3 0.006 0 0 <15.50 <0.0041 10/5/2001 05200 E 1440 Air 21.66 0.006 0 0 <15.50 <0.0041 10/5/2001 05201 F 1440 Air 35.67 0.009 0 0 <15.50 <0.0041 10/5/2001 05202 F Dup 1440 Air 12.74 0.003 0 0 <15.50 <0.0041 10/5/2001 05194 H 1440 Air 12.74 0.003 0 0 <15.50 <0.0041 10/5/2001 05195 I 1440 Air 17.83 0.005 0 0 <15.50 <0.0041 10/5/2001 05204 J 852 Air 26.75 0.012 0 0 <9.69 <0.0044 10/5/2001 05197 K 1440 Air 22.93 0.006 0 0 <15.50 <0.0041 10/5/2001 05207 L 1440 Air 11.46 0.003 0 0 <15.50 <0.0041 10/5/2001 05206 M 1440 Air 26.75 0.007 0 0 <15.50 <0.0041 10/5/2001 05205 N 1440 Air 7.64 0.002 0 0 <15.50 <0.0041 10/5/2001 05199 P 1440 Air 7.64 0.002 0 0 <15.50 <0.0041 10/5/2001 05203 Q 1440 Air 34.39 0.009 0 0 <15.50 <0.0041 10/5/2001 05198 S 1440 Air 10.19 0.003 0 0 <15.50 <0.0041 coc# 04036

Sampling Locations; NS: Not sampled A: NE comer of West Broadway & Barclay ’Structure (S) roughly equivalent to fiber (f) B: SE comer of Church & Dey St, NR: Not requested C: Trinity (a.k.a. Church) & Liberty NA: not analyzed due to overloading of particulates Cl: SW comer of Broadway & Liberty St. D: East end of Albany St. at Greenwich St. 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 comer of Wall St. & Broadway J: NE comer 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 St. (on tree next to bulkhead) o N: South side of Pier 25 (next to volleyball court) ERT: 10/07/01 9:50AM P: NE comer of South End Ave. & Albany H K Q: Barclay & West St. (center island) in proximity to USCG command post I R: TAGA Bus Location to S: Rector & South End S o o NIOSH 7400: Fiber Analysis of Air Samples via NIOSH 7400, Revision 3, Issue 2, 8/15/94 o I Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) o Standard criteria: EPA 40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 S/mm’, volume 1200 L, for 25 mm filter (TEM) o cr^ cr^ cn FL-10-05-01a

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NYC-WTC_000205419