Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

1 ATC ASSOCIATES INC. - TEM ANALYSIS 1 Lat Sample No. Client Spl. No. E-1 52555 LAB GROUP #: Z 77' Filtar Type MC='

F_1ter Area 335 mm" - ; 2E,'01 S mm Cperazor 1. I -)

1 7 Instrument I.D. EM 10 CRX Grid _r.D. 1, (:f DLSI No. Screen Magnification 1G,400X (GO) Area 0.01124 ,nm ^-2 Comments Acc. Voltage s0 kv No. GO to be Analyzed - 4. 2. Struct creod o

1 GO. No Coord. Structure Structure Type No. F B C M > um < 5 um Length 3 5um Chrys.i Amphibole I.D. of Structure N or,/ Nonasb. jArnbig./ND Elements EDS {Nonasb.

1 2 ,-- -

1 1 1 1 1 1 1 ___ __F___________ 1 Photo No. (from I in 5 asbestos- Identify all structures uaing EDS Check diffraction for asbestos Store all unrepeated spectre containing samples) Ori.d acceptance: structures u to 70e r'fim (tat 4) Struct = )i 0.Sum k > 5:1 Aspect Ratio <50% undisaolve i er, over apps or o e <10% particulate coverage >507G coverage N- Not Observed (EDS spectrum or diffraction pattern) at tenet 20 unfolded or overlapped grid squares Totals Positive diffraction pattern properties conforming < 9x hl es or 0 a tie areas r D '. lvt ! U LLtn to laboratory Identification criteria obeer•ed. Uouead rtion For ehrysenie: O.TJnm spaein■ for (020) renecuoaa. of tiller~ ~ I ~ 0.99nm ep.meg for the layer tins repeal. Chrysotile of (110) and (130) n tl ree000e. streaking Melded portion y of filter Far amphibeleei 0.59em layer tine repeal, and approc. Por"on of niter t2mm v+del 3.5 ratio of non—twinned layer line spot spacing to layer line repeat dlotanoe (0.99nm). suatact to acamloWoo Amphibole EDS spectrum conforming to laboratory Identification criteria observed. I AMPHIBOLES Ambiguous Fe Single Fiber (1-3 intersections = 1-3 f(bers) o Amosite Bc Bundle (>0 ribere <1 fiber diameter apart) 29mm (liter Crocidolitc Non -asbestos C Cluster >O Intaraectlons) ______ smppma Bides: >i= ham: Anthophytlite >30 s/0.0. or m tat 4 0.0. ) Tremolite 1. NS0= No Structures Detected Actinotite Non -Identified I L\DATA\PRIYATE\MIKEC\G DD\TEN9 9/22/98

NYC-WTC 000104335