Laboratory analytical results document from ATC Associates showing silica concentrations in air samples collected in December 2001.
NYC-WTC_000175061–000175062
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
PSC Rnalatical Services 6109219667 P-5 xiec 26 01 lO:3Oa
INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING • EPA/NVLAP101262-0 -NY DOtWELAC 10903 ’NJ OEP 77020 • AIHAACCREDITATION NO. 100439 • PA OEP 06-353 ■CTDPHPH-023e ’NCDENR59S Analytical Results ANALYTICAL SERVICES for ATC Associates WorkOrder: RO 1120280 Client Reference: 19125-0246: Silica in Air
Analyte Cencentration Limit of Test Date Analyzed Detection Method /Analyst (Ug) i (tng/m’) ■ (ppm) (ug> Client ID; SI I. ATC-IZIS-STY Lab ID: -I lA Date Sampled: 12/13/01 Matrix: Filter Air Vol.(L): S76 Total Particulate Matter <100 <0.114 100 TOTAL PARTICULAR 12/20/2001 ADM Silica (Quartz Total) <5 <0.00571 5 AIRBORNE SILICA 12/20/2001 ADM
Client ID; S12, ATC-!213-STY Lab tD: -12A Date Sampled; I IT 3/01 Matrix: Filter Air Vol.(L): S67 Total Particulate Matter 114 0.131 100 TOTAL PARTICULAT 12/20/2001 ADM Silica (Quartz Total) <5 <0.00577 5 AIRBORNE SILICA 12/20/2001 ADM
Client ID; S13, ATC-1213-STY, Blank Lab ID: -13A Date Sampled; 12/13/01 Matrix: Filter AirVol.(L); N A Total Particulate Matter <100 100 TOTAL PARTICULAT 12/20/2001 ADM Silica (Quartz Total) <5 5 AIRBORNE SILICA 12/20/2001 ADM (a) Analysis indicates possible breakthrough; back section result is greater than % 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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CONFIDENTIAL, CITY_21MC100_003429657 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175062
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NYC-WTC_000175789
Laboratory report page showing analytical results for silica samples collected by ATC Associates for the NYC Board of Education in December 2001.
4 shared non-person entities · 1 shared topics · similarity 0.988
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175065
Laboratory analytical results document from ATC Associates showing silica concentrations in air samples collected in early February 2002.
5 shared non-person entities · 1 shared topics · similarity 0.984
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175063
Laboratory analytical results document from ATC Associates showing silica concentrations in air samples collected on December 7, 2001.
4 shared non-person entities · 1 shared topics · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175781
Laboratory report page containing analytical results for air samples collected by ATC Associates for the NYC Board of Education.
4 shared non-person entities · 1 shared topics · similarity 0.972
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.972
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.971
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175786
Laboratory report page containing analytical results for air samples collected by ATC Associates for the NYC Board of Education in May 2002.
4 shared non-person entities · 1 shared topics · similarity 0.970
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.968
machine-extracted · confidence unavailable · Check page ↗4 shared non-person entities · 1 shared topics · similarity 0.967
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175789
Laboratory report page showing analytical results for silica samples collected by ATC Associates for the NYC Board of Education in December 2001.
Similarity score 0.992 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.992 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000175065
Laboratory analytical results document from ATC Associates showing silica concentrations in air samples collected in early February 2002.
Similarity score 0.989 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.988 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Similarity score 0.988 (not a probability)
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NYC-WTC_000175789
Laboratory report page showing analytical results for silica samples collected by ATC Associates for the NYC Board of Education in December 2001.
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Laboratory analytical results document from ATC Associates showing silica concentrations in air samples collected on December 7, 2001.
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