NYC-WTC_000195776

NYC 9/11 Public Portal Document

NYC Response Asbestos Air Sampling Results at Fixed Locations Sampling Date and Time: '10/06/01 (00:01) to 10/06/01 (09:00)

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 0.5p-Sp >5p

10/6/2001 05211 A 1010 Air 45.86 0.018 NA NA NA NA 10/6/2001 05212 B 1026 Air 30.57 0.012 0 r* 7.75 0.0029 10/6/2001 05213 Cl 1036 Air <7.0 <0.003 0 0 <7.75 <0.0029 10/6/2001 05217 D 1060 Air 57.32 0.021 2** 0 15.5 0.0056 10/6/2001 05221 E 1112 Air 26.75 0.009 0 1** 7,75 0.0027 10/6/2001 05222 F 1122 Air 24.2 0.008 0 0 <7.75 <0.0027 10/6/2001 05214 H 1040 Air <7.0 <0.003 0 1'* 7.75 0.0029 10/6/2001 05215 I 1050 Air 10.19 0.004 0 0 <7.75 <0.0028 10/6/2001 05216 I Pup 1050 Air 8.92 0.003 0 0 <7.75 <0.0028 10/6/2001 05224 J 1136 Ajr 15.29 0.005 0 0 <7.75 <0.0026 10/6/2001 05218 K 1068 Air 40.76 0.015 0 0 <7.75 <0.0028 10/6/2001 05227 L 1156 Air <7.0 <0.002 0 0 <7.75 <0.0026 10/6/2001 05226 M 1150 Air 14.01 0.005 0 0 <7.75 <0.0026 10/6/2001 05225 N 1146 Air 7.64 0.003 0 0 <7.75 <0.0026 10/6/2001 05220 P 1088 Air 11.46 0.004 0 0 <7.75 <0.0027 10/6/2001 05223 Q 1128 Air 7.64 0.003 0 0 <7.75 <0.0026 10/6/2001 05219 S 1078 Air 7.64 0.003 0 0 <7.75 <0.0028 cocit 19622 ** Chrysotile

Sampling Locations: I ;' ‘ lot sampled A: NE corner of West Broadway & Barclay lure (S) roughly equivalent to fiber (f) B: SE corner of Church & Dey St. ■ Jot requested C: Trinity (a.k.a. Church) & Liberty t- .ot analyzed due to overloading of particulates Cl: SW corner of Broadway & Liberty St. pie volume is below recommended limit of the method: 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 corner of Wall St. & Broadway J: NE 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 TA area M: Western end of Harrison St. at West St. (on tree next to bulkhead) N: South side of Pier 25 (next to volleyball court) ERT: 10/08/01 09:50 AM o P: NE corner of South End Ave. & Albany H Q: Barclay & West St. (center island) in proximity to USCG command post R: TAGA Bus Location to S: Rector & South End

o o NIOSH 7400: Fiber Analysis of Air Samples via NIOSH 7400, Revision 3, Issue 2, 8/1 .L.'; o I Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA 40CFR Pa ' ’ (AHERA) o Standard criteria: EPA40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 S/mm^ vol • ' 200 L, for 25 mm filter (TEM) o to US FL-10-06-01 co to co

NYC-WTC_000195776