Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

I TEMM Asbestos (air) Count Sheet I Client 'Name: Lab Group #: ATC 5954 Volume (liters): 1300 Filter Type Filter Area: VICE 385 mm=

I Lab Sample m: Client Sample #: 12 H i Grid Opening Size: 0.01124 Area Examined: 0.06744 mm-

n GRID BOX: GRID ID: s~ // 6C Magnification: Accelerating Voltage: 20.000 100 KeV

n # Grid Openings: 6

Analysis Performed By: n ROMAN PEYSAKHOV Analysis Date: I 123/01

I GO. 1 Structure Structure Type Length iD of Structure N or v EDS No F B C M >=05 u >=5u Chrys Amphiboie Norasb Ambig/ND (Nonaab No Coord <5p Elements) r

-' ; tl i I Z ' If

I I i I ~ I I I

rl H

I I I Struc: = > u.5u > 5: I Aspect Ratio Grid acceptance: X50% undissolved filter. overlapped orfoiaea 'i= Positive diffraction oattem properties conforming to Totals

I laooratory identification criteria observed <10% oarticulate coverage >50% coverage ate least 20 unfolded or overlaooedgrid squares <5% F B C 4I >5u v= EDS spectrum conforming to laooratory holes or opaque areas q identification criteria observed __ Clu-vsotile i

I AMPHIBOLES Amphibole F = Single Fiber Amosite 9 = Eunale,<3'ibers <' fiber diameter apart Croctdolite Ambiguous i r = cluster > itersecnonsi Anthoonyllite Non-Asbestos Tremolite M = Matrix Actinotite Non-iden[ttied NSD = No Structures Detec:ea

NYC-WTC 000104452