NYC-WTC_000223206

NYC 9/11 Public Portal Document ua / r • ‘J

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING •EPAmAP 101262 0 • NY DOtWELAC 10903 •NJ OEP PA020 •AIHA ACCREDITATION NO. 100439 • PA OEP 06-353 • CT DPH PH.0238 •NCDENR589

ANALYTICAL SERVICES Analytical Results for ATC Associates WorkOrder: R02040516 Client Reference: 19125-0246, Metals

Analyte Concentration Limit of Test Date Analyzed j Detection .Method /Analyst (ug) : {mg/m’) ; (ppm) (ug) Client ID: ATC-0410-STY-M5 Lab ID: -05A Date Sampled: 4/10/02 Matrix: Filter Air Vol.(L); NA

Aluminum <1.00 1 N730O MCE 04/19/2002 Aja Cadmiurn <0.200 0.2 N7300 MCE 04.'19/2002 AJB Chromium 0.575 0.2 N7300 MCE 04/19/2002 AJB Cobalt <0.100 0.1 N7300 MCE 04/19/2002 AJB Copper <0.200 0.2 N7300 MCE 04/19/2002 AJB Iron <2.00 2 N7300 MCE 04/19/2002 AJB lead <0.300 0.3 N7300 MCE 04/19/2002 AJB Magnesium <1.30 13 N730O MCE 04/19/2002 AJB Manganese <0.300 0.3 N7300 MCE 04/19/2002 AJB Molybdenum <1.00 1 N7300 MCE 04/19/2002 AJB Nickel <0.200 0.2 N7300 MCE 04/19/2002 AJB Zinc <0.500 0.5 N7300 MCE 04/19/2002 AJB

(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 (LCD). Infonnation not available or not applicable. Back sections were checked and showed no significant breakthrough.

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