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Metal analysis results for air samples, Dec 2001

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PSC Analytical Services report detailing metal concentrations including aluminum, cadmium, and chromium in air samples from December 2001.

NYC-WTC_000175028–000175029
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NYC 9/11 Public Portal Document

Dec 12 01 09:453 PSC Analytical Services B1092196S7 P-3

Analytical Results for ATC Associates WorkOrder: RO1120036 Client Reference: 19125-0246

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug): (mg/mj ; (Ppm) (ng) Client ID; M-1 Lab ID: -05A Date Sampled: 12/3/01 Matrix: Filter Air VoI.(L): 960 Aluminum <1 <0.00104 1 NIOSH Metals 12/05/2001 AJB Cadmium <0.2 <0.000208 0.2 NIOSH Metals 12/05/2001 AJB Chromium 0.335 0.000349 0.2 NIOSH Metals 12/05/2001 /XJB Cobalt <0.1 <0.000104 0.1 NIOSH Metals 12/05/2001 AJB Copper <0.2 <0.000208 0.2 NIOSH Metals 12/05/2001 AJB Iron <2 <0.00206 2 NIOSH Metals 12/05/2001 AJB Magnesium <1.3 <0.00135 1.3 NIOSH Metals 12/05/2001 AJB Manganese <0.3 <0.000312 0.3 NIOSH Metals 12/05/2001 AJB Molybdenum <1 <0.00104 1 NIOSH Metals 12/05/2001 AJB Nickel <0.2 <0.000208 0.2 NIOSH Metals 12/05/2001 AJB Zinc <0.5 <0.000521 0.5 NIOSH Metals 12/05/2001 AJB

ClienUD^M^ZTiU^^OrB^ Lab ID: -06A Date Sampled: 12/3/01 Matrix: Filter Air Voi.(L): 960 Aluminum <1 <0,00104 1 NIOSH Metals 12/05/2001 AJB Cadmium <0.2 <0.000208 0.2 NIOSH Metals 12/05/2001 AJB Chromium 0.297 0.000309 0.2 NIOSH Metals 12/05/2001 AJB Cobalt <0.1 <0,000104 0.1 NIOSH Metals 12/05/2001 AJB Capper <0.2 <0.000208 0.2 NIOSH Metals 12/05/2001 AJB Iron <2 <0.00208 2 NIOSH Metals 12/05/2001 AJB Magnesium <1.3 <0.00135 1.3 NIOSH Metals 12/05/2001 AJB Manganese <0.3 <0.000312 0.3 NIOSH Metals 12/05/2001 AJB Molybdenum <1 <0.00104 1 NIOSH Metals 12/05/2001 AJB Nickel <0.2 <0.000208 0.2 NIOSH Metals 12/05/2001 AJB Zinc <0.5 <0.000521 0.5 NIOSH Metals 12/05/2001 AJB

Client ID: M-3 Lab ID: -07A Date Sampled; 12/3/01 Matrix: Filter AirVoI.(L):960 Aluminum <1 <0.00104 1 NIOSH Metals 12/05/2001 AJB Cadmium <0.2 <0.000208 0.2 NIOSH Metals 12/05/2001 AJB Chromium 0.332 0.000346 0.2 NIOSH Metals 12/05/2001 AJB Cobalt <0.1 <0.000104 0.1 NIOSH Metals 12/05/2001 AJB Copper <0.2 <0.000208 0.2 NIOSH Metals 12/05/2001 /iJB Iron <2 <0.00208 2 NIOSH Metals 12/05/2001 AJB Magnesium <1.3 <0.00135 1-3 NIOSH Metals 12/05/2001 AJB Manganese <0.3 <0.000312 0.3 NIOSH Metals 12/05/2001 AJB Molybdenum <1 <0.00104 '1 NIOSH Metals 12/05/2001 AJB Nickel <0.2 <0.000208 02 NIOSH Metals 12/05/2001 AJB Zinc <0.5 <0.000521 0.5 NIOSH Metals 12/05/2001 AJB

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CONFIDENTIAL, CITY_21MC100_003429269 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000175028

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NYC-WTC_000175028Source: NYC Law Department, mirrored locally

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