Asbestos air sampling results for December 2001

NYC-WTC_000130525 NYC Response Asbestos Air Sampling Results at Fixed Locations Sampling Date and Time: 12/02/01 1200 to 2359 Data Validation Date: 12/06/01 PCM by NIOSH 7400 TEM ( AHERA) Sampling Sampling | Sample Date Sample Location | Volume* Matrix Structures (#) 0.5n-5u| Su Simm? fimm? fice S~ficc* 12/02/01 | RST-01404 L 720 <7.0 <0.004 <8.89 <0.0048 42/02/01 M1 430 Air <7.0 <0.006 <8.00 <0.0072 12/02/01 N 510 Air <7.0 <0.005 <8.00 <0.0060 Air <7.0 <0.004 <8.89 <0.0048 12/02/01 N-Dup 720 12/02/01 J 720 Air <7.0 <0.004 <8.89 <0.0048 12/02/01 Q 720 <7.0 <0.004 <8.89 <0.0048 42/02/01 720 Ql 3 ay ie] <7.0 <0.004 <8.89 <0.0048 12/02/01 720 <7.0 <0.004 <8.89 <0.0048 12/02/01 720 7.01 0.004 <8.89 <0.0048 12/02/01 720 16.56 0.009 <8.89 <0.0048 28.03 0.015 <8.89 <0.0048 12/02/01 720 8.92 0.005 <8.89 <0.0048 12/02/01 720 <7.0 <0.004 <8.89 <0.0048 12/02/01 720 <7.0 <0.004 <8.89 <0.0048 12/02/01 NS alojofololalolalololo|olo/o/Y NS NS 12/02/01 219 <7.0 <0.012 <8.00 <0.0141 12/02/04 636 * <7.0 <0.004 ~ 8 0.0048 12/02/01 720 <7.0 <0.004 <8.89 <0.0048 12/02/01 673 <7.0 <0.004 <8.00 <0.0046 12/02/01 720 <7.0 <0.004 <8.89 <0.0048 12/02/01 720 8.92 0.005 <8.89 <0.0048 R R R R R R R R R 12/02/01 | RST-01414 720 R R R R R R R R R R w)<tlafolr|—jal<}F|D/>|o/o}w]S 42/02/01 660 olololololololojololojololo|Ylojolojolojojo off [ololololo <7.0 <0.004 <8.00 <0.0047 12/03/01 Field Blank 0 <7.0 n/a NA® NA” NA? NA” 12/03/01 | 1TB120301 Trip Blank 0 <7.0 n/a NA?) NA) NA?) NA?) Sampling Locations: A: NE comer of West Broadway & Barclay B: SE comer of Church & Dey St. C: Trinity (a.k.a. Church) & Liberty C1: SW corner 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. |: 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 Suyvesant High), access to TAGA bus area M: Western end of Harrison St. at West St. (on tree next to bulkhead) M1 : West St. - 50 yards south of Harrison St. at bulkhead N: South side of Pier 25 (next to volleyball ct) P: NE comer of South End Ave. & Albany Q: Barclay & West St. (center island) in proximity to USCG command post R: TAGA Bus Location S: Rector & South End T: Pier 6 Heliport U: Pier 6 Exit 2 V: Pier 6 Bus Sign W: Wash Tent Common Area NIOSH 7400: Fiber Analysis of Air Samples via NIOSH 7400, Revision 3, Issue 2, 8/15/94 Asbestos Fiber Analysis by Transmission Electron Microscopy (TEM) EPA 40CFR Part 763 (AHERA) Standard criteria: EPA FL-12-02-01-pm 4OCFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 Simm’, volume 1200 L, for 25 mm filter (TEM) Key: * Sample volume (liters) is below recommended limit for the TEM method; volume is based on pump reading ** Structure (S) is roughly equivalent to fiber (f) *** Chrysotile NA‘ ~ Not analyzed due to overloading of particulates NA®)- Not analyzed for TEM NA®)- Not analyzed due to wet filter n/a - Not applicable NR - Not requested NS - Sample not submitted due to no sample volume NYC 9/11 Public Portal Document