TEM Asbestos air sample results, NYC BOE, Mar 2002

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume (liters): 1816 Lab Group #: 6933 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 13 Grid Opening Size: 0.01124

Client Sample #: 16 —Area Examined: 0.04496 _mmt

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/5/02

Analysis Performed By: ROMAN PEVSAKHOV

GO, Structure Structure Type Length ID oi Structure \ or EDS (Nonadb । No F B C M 3^0571 I Chrys Amphbole [ Nonasb Ambig/ND J, No Coord <5p Elements)

"Z. i——r 2-

- — I —

Struct = ' I) 5li 51 Aspect Ratio Grid accepiaiice

\= Positive diffraction pattern properties conforming to <50% undissoiveo filter overlapped or folded Totals <:0% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfoideu oi overapped one squa-es <t F B C I M I >5p EDS spectrum conforming to laboratory notes or opaoue areas identification criteria observed Clirvsotile .A .VI PH I BOLES .Anipinbole F = Single Fiber Amosite 3 = Bundle i<3 fibers <1 'iber diameter apart Crocidolite .Ainhiuuous C = Cluster l>3 intersections) Anthophyllite Noii-.Asbestos Tremolite M = ,'vtatrix Noii-kleniified Actinolite NSC = No Structures Detected

CITY_21MC100_003102286

NYC-WTC_000183224