Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

I TEMI Asbestos (air) Count Sheet I Luent Name: Lab Group ;#: ATC 6237 Volume (liters): Filter Type / Filter Area: 1300 NICE 335 mr.,=

I Lab Sample #: Client Sample #: 1 01 Grid Opening Size: Area Examined: 0.01 124 0.06-44 mm- GRID BOX: 7Z/ Magnification: I GRID ID: # Grid Openings: 6 ~C= U Accelerating Voltage: -,0.000 100 Key Analysis Date: 1230/01

I Analysis Performed By: ROMAN PEYSAKHOV

I GO Structure No Structure Type Length ID of Structure N or v SOS (NonaCb F 6 C M >=05 N >=5N Chrys amphibole Nonasb AmoiglND No Coord Eiementsl <5N

ot m.. 7 ~Z, I/

ID p2 Ii I i I I j I I I I I j I

Li I I

I I ~ I

Srruct = -. U.5u 5. 1 Aspect Ratio Grid acceptance: i= Positive diffraction dattern properties conrorming to <50% undissolved filter, ovenapped or folded Totals aooratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% i= EIS spectrum conrorming to iaooratory holes or opaque areas F B j t. M >'.0 aentificauon criteria observed Chrysoule AMPHIBOLES =Single Fiber Amosite Amphibole

I 3 = Bundle (<3 fibers <1 fiber diameter apan Crocidoiite Ambiguous Ouster ,>3 Intersections) Anthophyllite Non-asbestos M=Matrix Tremotite — Actinolite Non-Identified NOD = No Structures Detected ! --

NYC-WTC 000104538