NYC-WTC_000234888

NYC 9/11 Public Portal Document

NYC Emergency Response Asbestos Air Sampling Results for Staten Island Landfill Sampling Date and Time: 10/24/01 1800 to 10/25/01 0600

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 0.5-5p >5p

10/24-25/2001 03666 P Loc # 1 720 Air <7.0 <0.004 0 8.89 0.0048 10/24-25/2001 03667 P Loc # 2 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 10/24-25/2001 03668 P Loc # 3 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 10/24-25/2001 03669 P Loc # 4 715 Air <7.0 <0.004 0 0 <8.89 <0.0048 10/24-25/2001 03670 P Loc # 5 715 Air <7.0 <0.004 0 0 <8.89 <0.0048 10/24-25/2001 03671 P Loc # 6 717 Air <7.0 <0.004 0 0 <8.89 <0.0048 10/24-25/2001 03672 P Loo # 7 718 Air <7.0 <0.004 0 0 <8.89 <0.0048 10/24-25/2001 03673 P Loc # 8 719 Air <7.0 <0.004 0 0 <8.89 <0.0048 10/24-25/2001 03674 S Loc # 9A 630 Air <7.0 <0.004 0 0 <8.00 <0.0049 10/24-25/2001 03675 S Loc # 9B 718 Air <7.0 <0.004 0 0 <8.89 <0.0048 10/24-25/2001 03676 S Loc # 10 A 718 Air <7.0 <0.004 0 0 <8.89 <0.0048 10/24-25/2001 03677 S Loc# WB 595 Air <7.0 <0.005 0 0 <8.00 <0.0052 10/24-25/2001 03678 W Loc # 11 640 Air <7.0 <0.004 0 0 <8.00 <0.0048 10/24-25/2001 03679 W Loc#12A 720 Air <7.0 <0.004 8“ 80 0.0428 10/24-25/2001 03680 W Loc#12B 463 Air <7.0 <0.006 0 0 <8.00 <0.0067 10/24-25/2001 03681 B Loc # 13 422 Air <7.0 <0.006 0 0 <8.00 <0.0073 10/24-25/2001 03682 B Loc #14 720 Air <7.0 <0.004 0 0 <8.89 <0.0048 10/24-25/2001 03683 T Loc #15 720 Air <7.0 <0.004 0 2*. 17.78 0.0095 10/24-25/2001 03684 T Loc # 16 651 Air 7.64 0.004 NA NA NA NA coc#'04671 & 04672 ** Chrysotile, no other types of asbestos detected

NS: Not sampled AF/ANF: Asbestos fibers/Non asbestos fibers Sample volume is below recommended limit of the method: ‘Structure (S) roughly equivalent to fiber (f) NA: not analyzed due to overloading of particulates NC: Denotes not calculated due to no sample volume.

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) H Standard criteria: EPA 40CFR Part 763 (AHERA): 0.01 fiber/cc (PCM), 70 S/mm^ volume 1200 L, for 25 mm filter (TEM)

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NYC-WTC_000234888