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machine-extracted · confidence unavailable · Check page ↗Document / 3 pages
Analytical results for silica dust samples, Mar 2002
Machine-extracted title · confidence 90%Laboratory analytical results document from ATC Associates showing silica concentrations in air samples collected in March 2002.
NYC-WTC_000175073–000175075Page image
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NYC 9/11 Public Portal Document
P-G
INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING •EPA/NVLAP101262-0 •NY DOHNELAC 10903 •NJDEPPA020 •AIHA ACCREDITATION NO. 100439 < PA DEP 06-353 • CT DPH PH-0238 •NCQENRSas
ANALYTICAL SERVICES Analytical Results for ATC Associates WorkOrder: R02030996 Client Reference: 19125-0246 - Silica
Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) • (mg/m’) ; (ppm) (ng)
Client ID; S7 ATC-0320-STY Lab ID: -07.A Date Sampled: 3/20/02 Matrix: Filter Air VoI.(L):8l6 Total Particulate Matter <50,0 <0.0613 50 N0600 03/29/2002 ADM
Crystalline Silica <10.0 <0.0123 10 Crystalline Silica 03/29/2002 ADM
Client ID: S8 ATC-0320-STY Lab ID: -OSA Date Sampled: 3/20/02 Matrix: Filter Ail-Vol,(L): SI6 Total Particulate Matter <50.0 <0.0613 50 N0600 03/29/2002 ADM
Crystalline Silica <10.0 <0.0123 10 Crystalline Silica Q3/29Z2002 ADM
Client ID: S9 ATC-0320-STY LabID:-09A Date Sampled: 3/20/02 Matrix: Filter Air VoI.(L):816 Total Particulate Matter <50.0 <0.0613 50 N0600 03/29/2002 ADM
Crystalline Silica <10.0 <0.0123 10 Crystalline Silica 03/29/2002 ADM
Client ID; SIO ATC-0320-STY Lab ID: -lOA Date Sampled: 3/20/02 Matrix; Filter Air Vol.(L); 816 Total Particulate Matter <50.0 <0.0613 50 N060O 03/29/2002 ADM
—Crystalline Silica 12.0 10 Crystalline Silica 03/29/2002 ADM
Client ID: SI 1 ATC-0320-STY Lab ID: -11A Date Sampled: 3/20/02 .Matrix: Filter AlrV«L(L):8l6 Total Particulate Matter <50.0 <0.0613 50 N0600 03/29/2002 ADM
Crystalline Silica <10.0 <0.0123 10 Crystalline Silica 03/29/2002 ADM
Client ID: S12 ATC-0320-STY Lab ID: -I2A Date Sampled: 3/20/02 Matrix: Filter Air Vol.{L): 816 Total Particulate Matter <50.0 <0.0613 50 N06OO 03/29/2002 ADM
Crystalline Silica <10.0 <0.0123 10 Crystalline Silica 03/29/2002 ADM
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CONFIDENTIAL, CITY_21MC100_003429744 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175074
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NYC-WTC_000175074Source: NYC Law Department, mirrored locally
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