Ambient air sampling report Book Two for 105 Duane Street,

NYC 9/11 Public Portal Document

I TEM Asbestos (air) Count Sheet 1 Client Name: Lab Group #: ATC 5954 Volume (liters l: Filter Type / Filter Area: 1300 MCE 385 mm= Lab Sample #: 14 Grid Opening Size: 0.01124 Client Sample #: H-3 Area Examined: 0.06-44 mm'

I GRID BOX: GRID ID: # Grid Openings: 6 Z. Magnification: ?Accelerating Voltage: 20.000 100 KeV Analysis Date: 112301

I Analysis Performed By: ROMAN PEYSAKHOV

I GO. I Structure Structure Type Length I ID of Structure N or v EDS (Nonadb No F B C M >=05 u >=5p Chrys Ampniboie Nonasb AmoigAC No Coord ; <5N Eiements)

V2 I I7 V 2 '' 0

I I

LII I j I j

I I I I I I '1 1 1 1 i I V I I I

Struct = = 0.f u > 5: 1 Aspect Ratio Gna acceptance: v= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapoea or folded Totals identification critena ooseed <10% particulate coverage >50% coverage ate least 20 unfolded or ovenappea gna squares <5% ! F B C NI >5u laboratory EDS spectrum conforming to laboratory holes or opaque areas _ aentificaGon cntena ooservea Chrvsottie j ! AMPHIBOLES .-amphibole r =Single Fiber Amosite B = Bundle i<0 fibers <1 fiber diameter apart Crocidolite Ambiguous C = C,uster =3 intersecaonsi Anthopnyllite Non-Asbestos Tremolite N = MMatnx Actinotte Non-Identified NSC = No Structures Cetected I -

NYC-WTC 000104454