Asbestos air sampling results, Oct 9, 2001

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Results at Fixed Locations Sampling Date and Time: 10/09/01 (00:01) to 10/09/01 (12:00)

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-5p >5m

10/9/01 05341 A 1440 Air NA NA 0 0 <15.50 <0.0041 10/9/01 05342 B 1440 Air 21.66 0.006 0 0 <15.50 <0.0041 10/9/01 05343 C1 1440 Air 17.83 0.005 0 0 <15.50 <0.0041 10/9/01 05346 D 1440 Air 99 36 0.027 1” 0 15.5 0.0041 10/9/01 05351 E 1440 Air 11.46 0.003 0 0 <15.50 <0.0041 w 10/9/01 05352 F 1440 Air 8.92 0.002 0 0 <15.50 <0.0041 G 10/9/01 05344 H 1440 Air 17.83 0.005 0 0 <15.50 <0.0041 ro 10/9/01 05345 I 1440 Air 30.57 0.008 0 0 <15.50 <0.0041 G M 10/9/01 05354 J 1440 Air 8.92 0.002 0 0 <15.50 <0.0041 o NA 0 0 <15.50 <0.0041 H 10/9/01 05347 K 1440 Air NA 10/9/01 05357 L 1440 Air 7.64 0.002 0 0 <15.50 <0.0041 H O 10/9/01 05356 M 1440 Air <7.0 <0.002 0 0 <15.50 <0.0041 10/9/01 05355 N 1440 Air 7.64 0.002 0 0 <15.50 <0.0041 hd 23 10/9/01 05349 P 1440 Air 56.05 0.015 0 0 <15.50 <0.0041 O 10/9/01 05350 P Dup 1440 Air 12.74 0.003 0 0 <15.50 <0.0041 H M 10/9/01 05353 Q 1440 Air 8.92 0.002 0 0 <15.50 <0.0041 O o 10/9/01 05348 S 1440 Air <7.0 <0.002 0 0 <15.50 <0.0041 H o 3 coc# 04096 •* Chrysotile; no other types of asbestos were detected < 3

a Sampling Locations: NS: Not sampled o M A: NE corner of West Broadway & Barclay •Structure (S) roughly equivalent to fiber (f) ?d 3 a H B: SE corner of Church & Dey St. NR: Not requested M C: Trinity (a.k.a. Church) & Liberty NA: not analyzed due to overloading of particulates ?d > C1: SW corner of Broadway & Liberty St. G s D: East end of Albany St. at Greenwich St. o E; Western end of Liberty St. at South End Ave to F: Northern median strip of Vesey & West St G: Church and Duane St. W H: South side of Chase Manhattan Plaza at Pine St. M I: SE corner of Wall St. & Broadway hd H J: NE corner of Warren & West St. K: West St. & Albany in median strip to L: On walkvifay toward North Park rec area (north side of Stuyvesant High), access to TAGA bus area o M: Western end of Harrison St. at West St. (on tree next to bulkhead) o co N: South side of Pier 25 (next to volleyball court) ERT: 10/10/01 09:50 AM P: NE corner of South End Ave. & Albany Q: Barclay & West St. (center island) in proximity to USCG command post R: TAGA Bus Location M ! S: Rector & South End

s - ! o NIOSH 7400: Fiber Analysis of Air Samples via NIOSH 7400, Revision 3, Issue 2, 8/15/94 o ' Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) I i Standard criteria: EPA 40CFR Part 763 (AHERA); 0.01 fiber/cc (PCM), 70 S/mm’, volume 1200 L, for 25 mm filter (TEM) o o I FL_10_09_01 on ! co

NYC-WTC 000176026