NYC-WTC_000210957

NYC 9/11 Public Portal Document

Asbestos Air Sampling Results for Staten Island Landfill Sampling Date and Time: 10/13/01 0600 to 1900

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 >50

10/13/01 03171 P Loc # 1 720 Air <7.00 <0.004 0 0 <8.89 <0.0048 10/13/01 03172 P Loc # 2 720 Air <7.00 <0.004 0 0 <8.89 <0.0048 10/13/01 03173 P Loc # 3 720 Air <7.00 <0.004 0 0 <8.89 <0.0048 10/13/01 03174 P Loc # 4 720 Air <7.00 <0.004 0 0 <8.89 <0.0048 10/13/01 03175 P Loc # 5 720 Air <7.00 <0.004 0 0 <8.89 <0.0048 10/13/01 03176 P Loc # 6 720 Air <7.00 <0.004 0 0 <8.89 <0.0048 10/13/01 03177 P Loc # 7 720 Air <7.00 <0.004 0 0 <8.89 <0.0048 10/13/01 03178 P Loc # 8 720 Air <7.00 <0.004 0 0 <8.89 <0.0048 10/13/01 03179 S Loc # 9A 701.7 Air <7.00 <0.004 0 1“ 8 0.0044 10/13/01 03180 S Loc # 9B 694.6 Air <7.00 <0.004 0 0 <8.00 <0.0044 10/13/01 03181 S Loc # 9C 709.1 Air <7.00 <0.004 0 0 <8.00 <0.0043 10/13/01 03182 S Loc #10 A 698 Air <7.00 <0.004 0 0 <8.00 <0.0044 10/13/01 03183 SLoc#10B 692 Air <7.00 <0.004 0 0 <8.00 <0.0045 10/13/01 03184 W Loc #11 704 Air <7.00 <0.004 0 1" 8 0.0044 10/13/01 03185 W Loc #12 720 Air <7.00 <0.004 0 1** 8.89 0.0048 10/13/01 03186 BLOC #13 720 Air <7.00 <0.004 0 0 <8.89 <0.0048 10/13/01 03187 B Loc #14 720 Air <7.00 <0.004 0 0 <8.89 <0.0048 coc# 04629 " Chrysotile; no other types of asbestos were 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

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

ERT: 10/15/01 9:50 AM o

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NYC-WTC_000210957