Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

I TEMI Asbestos (air) Count Sheet t_uent Name: ATC Volume (liters): 1300 Lab Group #: 6237 Filter Type ! Filter Area: MCE 385 nim Lab Sample #: _' Grid Opening Size: 0.01124 Client Sample #: 02 Area Examined: 0.06- 4-I mm-' GRID BOX: 72. 7 Magnification: -, 0,000 GRID ID: __ ____ ~ Accelerating Voltage: 100 Key # Grid Openings: 6 Analysis Date: 12/30i01

Analysis Performed By: f~ ROMAN PEYSAKHOV

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Struct = % U.5u > 5. 1 Aspect Ratio and acceptance: i= ~osmve diffraction oatterl orooerties conforming to <50% undissolved filter. overlapped or'oieed Totals iaooratory identification criteria coservec <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped gno squares <5% F B C = EDS spectrum conforming to Iaocratory vI , ^-u holes or ooaque areas Identification ..ntena observed Clirysotile AMPHIBOLES Amphibole = Single Fiber Amosite B = Bundle I <3 fibers <1 fiber diameter apart Croc:oolite Ambiguous C = Cluster I>3 Intersections) Anthopnyllite Non-Asbestos M = Matrix Tremolite Actinolite Non-Identified NSD = No Structures Detected

NYC-WTC 000104539