Asbestos air sampling results, Oct 7, 2001

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Results at Fixed Locations Sampling Date and Time: 10/07/01 (1200) to 10/07/01 (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 0.5u-5m >5m

10/7/01 05261 A 1440 Air 15.29 0.004 0 0 <15.50 <0.0041 10/7/01 05262 B 1440 Air 14.01 0004 0 0 <15.50 <0,0041 10/7/01 05263 C1 1440 Air 21.66 0.006 0 0 <15.50 <0.0041 10/7/01 05266 D 1440 Air 22.93 0.006 0 0 <15.50 <0.0041 10/7/01 05270 E 1440 Air 57.32 0.015 0 0 <15.50 <0.0041 w 10/7/01 05271 F 1440 Air <7.0 <0.002 0 0 <15.50 <0.0041 G 10/7/01 05264 H 1440 Air 17.83 0.005 0 0 <15.50 <0.0041 ro 10/7/01 05265 I 1440 Air 11.46 0.003 0 0 <15.50 <0.0041 M 10/7/01 05273 J 1440 Air <7.0 <0.002 0 0 <15.50 <0.0041 O 10/7/01 H 05267 K 1440 Air <7.0 <0.002 0 0 <15.50 <0.0041 10/7/01 05277 L 1440 Air 10.19 0.003 0 0 <15.50 <0.0041 H 10/7/01 05276 M 1440 Air <7.0 <0.002 0 0 <15.50 <0.0041 O 10/7/01 05274 N 1172 Air <7.0 <0.002 0 0 <12.92 <0.0042 3 10/7/01 05275 N Dup 1440 Air <7.0 <0.002 0 0 <15.50 <0.0041 23 O 10/7/01 05269 P 1440 Air <7.0 <0.002 0 0 <15.50 <0.0041 H 10/7/01 05272 Q 1440 Air 10.19 0003 0 0 <15.50 <0.0041 M O o 10/7/01 05268 S 1440 Air <7.0 <0.002 0 0 <15.50 <0.0041 H o coc# 04037 3 < 3 O Sampling Locations: NS: Not sampled o M A: NE corner of West Broadway & Barclay •Structure (S) roughly equivalent to fiber (f) 3 a H B: SE corner of Church & Dey St. NR: Not requested C: Trinity (a.k.a. Church) & Liberty NA: not analyzed due to overloading of particulates > Cl: SW corner of Broadway S Liberty St. G s D: East end of Albany St. at Greenwich St. o E: Western end of Liberty St. at South End Ave F: Northern median strip of Vesey & West St to G: Church and Duane St. H: South side of Chase Manhattan Plaza at Pine St. W M I: SE corner of Wall St. & Broadway 23 J: NE corner of Warren & West St. H K: West St. & Albany in median strip to L: On walkway 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 N: South side of Pier 25 (next to volleyball court) ERT: 10/09/01 09:50 AM co O P: NE corner of South End Ave. & Albany Q: Barclay & West St. (center island) in proximity to USCG command post H R: TAGA Bus Location l"^ S: Rector & South End to 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) o 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 FL_1O_O7_O1A on co

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NYC-WTC_000176027