PCM fiber results lab report, NYC Law Department, Apr 2002

NYC 9/11 Public Portal Document

Sdlftob#: 20203297S ■}

Page f 1 CJienl Name; TRC Environmental Coipoiation Phase Contrast Microscopy (PCM) Fiber Results 35052-0000-00007; New York City Law Department; 100 Church Street, OSHA I Plow Air Fiber Fibers SciLab Client Rate Duration Filtered pigjjg pibgrs Density Cone. TWA Sample # Sample # / Location Collected (litem/min.) (min.) (liters) (Fibers/mm^ ) (Fibers/cc)

01 GS-3/l£l/02-OSHA^2I9 3/19/02 2 330 660 100 2 2.55 <0.004 ru Manolo Aliea g 02 GS-3/I9/02-QSHA-022O 3/19/02 2 330 660 lOO 2 2.55 <0.004 IJavid Arce 3 03 GS-3/I9/02-OSHA-0221 3/19/02 2 330 660 100 3 3.82 <0.004

04 Alberto Garey

Manolo Alles GS-3/19/02-OSHA-0222 3/19/02 2 303 600 100 2 2.55 < 0.004 I m o 05

06 David Arce GS-3/19/O2-0SHA-O223

GS-3/19/02-OSHA-0224 3/19/02

3/19/02 2

2 300

300 600

600 100

lOO 1

2 1.27

2.55 <0.004

<0.004 s Alberto Garey 07 OS- .3/19/n2-O.9HA-0225 3/19/02 0 0 0 100 0.5 0.64 Blank Footnotes: J 08 Blank Reporting Notes: GS-3/19/02-OSHA-0226 3/19/02 0 0 0 lOO 0.5 0.64 Footnotes: / I A (1> Fibers/cc cannot be^lc^Ia^ for_^ai^es (o^lanks) with no air volume. Analysed by! Matvin yV\ YyY\ yWzQ : Date Aoilyzed: 3004)2 d Ssm^u analyzed by NtOSH'7400(A) Method. luiK 42, 8/15/94: Limit of Deisctiiioxt 5.5 fiken pet 105 fields or 7 fiben/nuiil: This report lelatu ONLY u (iw sample aQalysii cxpeeaied as libeR/si) mm of fillet area: NDaKo libers observed: NAn Not Amiyud; Walloo-Btckett gradde field ansa » 0/00785 mm2: TWA = 8 Hr TWA calculation aMumes aeio exposure for retoalndcr of 8 hr period not sampled: Upper 9596 CoofidenoB limit (Employers Compliance Test)- Calculated as a one sided UCL «o deterimne OSXi oerulniy ofcompliance nith Die 0.01 fiber/oc slamtard: Estimated itlali re standard deviation: lolnlab 5r=0.405, Interiab Sj>t0.45, New York samples (N YSDOH ELAP Lab m 1480): National Institute of Standards amt Teoluiologj 8 kO A Accreditadonrequitementsmandaltihat this report muslnol be reproduoed except in lull ttitliout die approval of the laboratory. AIHA 8102843. £ co Q H K I I—i ,T] S Q o o I o

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