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NYC-WTC_000223523

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NYC 9/11 Public Portal Document

Dec 13 01 lO:33a PSC Analytical Services 6103213667 p. 6

F’SCZ INDUSTRIAL HYGIENE • EPA/NVLAP 101262-0 •AIHAACCREDITATION NO. 100439 •NCDENR 599 ENVIRONMENTAL TESTING • NY DOH/NELAC 10903 •PA DEP 06-353 •NJ DEP 77020 • CT DPH PH-0238

ANALYTICAL SERVICES Analytical Results for

ATC Associates WorkOrder; R01120182 Client Reference: 19125-0246; Cyanide in Air (12/8/01)

Analyte Concentration Limit of Test bate Analyzed Detection Method /Analyst (ug) : (mg/m’) : (ppm) '(ug) Client ID: CN1-ATC^2O8-2^M 7 ILablD: -OlA Date Sampled: 12/8/01 Matrix: Soda Lime AirVol.(L); 120 Hydrogen Cyanide p y-ouvhX 0.74 0.0062 0.1 HYDROGEN CYANIC 12/17/2001 JWK

Client ID: CN2-ATC-1208-234M Lab ID: -02A Date Sampled: 12/8/01 Matrix: Soda Lime AirVol.(L): 120 Hydrogen Cyanide L.Tc. 0.86 0.0072 0.1 HYDROGEN CYANIC 12/17/2001 JWK

Client ID: CN3-ATC-120S-234M. Blank Lab ID: -03A Date Sampled: 12/8/01 Matrix: Soda Lime Air Vol.(L): NA Hydrogen Cyanide 0.24 0.1 HYDROGEN CYANIC 12/17/2001 JWK (a) Analysis indicates possible breakthrough; back section result is greater than 0% of the front section result

General Notes: <; Less than the indicated limit of detection (LOD). —: Information not available or not applicable. Back sections were checked and showed no significant breakthrough.

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NYC-WTC_000223523

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NYC-WTC_000223523Source: NYC Law Department, mirrored locally

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