Laboratory findings on silica concentrations from residential sampling projects submitted to the EPA in late December 2001.
NYC-WTC_000176089–000176098
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
107Haddon Avenue 4™SL► EMSL Analytical, Ine,- Westmont, yj. 08108 (856) 858-4800 12/26/01 Attention: U.S. EP/i HQ Financial Services Division 1200 Pennsylvania Avenue NW Maildrop 2734R Washington, DC. 20460
Project: Residential Ref. Number: 360100701
Silica Analysis Performed by Method NIOSH 7500 Crystalline Particle Analysis Performed by X-Ray Diffracyon^2®®L_________ Nuisance Dust Airborne Particulate Sample ■Sample Analyte Acalytv % .AnahticKl Weight Cone. Weight Cunc. Analyte Sensitivity Sample ID Identification Ana IJie ID Volume (me) (mg/tn'") (m?) (ms/m’) (L)
[RIBTF-A-23 Quartz 0 A N/A <0,004 N/A N/A N/A Cristobsllie <0.012 N/A N/A Tndymiie N/A N/A N/A Calcite <0,004 N/A N/A Portland/ Lime <0.020 N/A N/A Gypsum «).004 M/A N/A Mica <0.011 N/A N/A Halite <0.006 N/A N/A Fibrous Glass NO WA N/A
[R]eTF-e-23 Quartz 0 A N/A <0.004 N/A N/A N/A C/isiobalte <0,012 N/A N/A Tridymite N/A N/A N/A Calcite <0.004 M/A N/A Portland/ Lime <0.020 N/A N/A Gypsum <0.004 N/A N/A Mice <0.011 N/A N/A Halite <0.006 N/A N/A Albmus Glass ND WA N/A
(R]BIF-A-23 Quartz 0 Q.001 N/A <0.004 lUA N/A N/A Cristobalite <0.012 N/A N/A Tridymite N/A N/A N/A Calcite <0.004 N/A N/A Portland/ Lime <0.020 N/A N/A Gypsum <0.004 N/A N/A Mica <0.011 N/A N/A Halite <11,006 N/A N/A Fibrous Glass ND H/A N/A Fibrous Gf&ss PesuHs are in fSbom pp.f cubic M
John NcTA’ton 36 December, 200} Analj-st Date of Analysis Disclaimer: The laboratory can only verily the eonccinretiotis of analytes on the filler and not the Bnal concentrations due to data obtained by non-laboratoty personnel. In the absence of a bulk dust sample, the specific form of crystalline sil ica can not be detennieed. Hence, ojphu-quaitz, the most prevalent form of crystalline silica, mil be as-sumed. = Less Oian (he si »ta3 value Diclowcst reportable value is equivalent to tlie .Ajtalybcol Sensitivity which is calculated from the lowest reproducible conccotratioaof silica detectable by the instrument. AJHA Acered ited - Laboratory ID //10 0192
CONFIDENTIAL, CITY_21MC1OO_OO3 423317
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176095
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NYC-WTC_000176066
Laboratory results for silica content in samples collected under the Residential Sampling project in December 2001.
10 shared non-person entities · 1 shared topics · similarity 0.989
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176077
Revised laboratory report detailing silica analysis results for residential sampling conducted in December 2001.
9 shared non-person entities · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176099
Report detailing silica analysis results for samples collected as part of the residential environmental monitoring effort.
7 shared non-person entities · 1 shared topics · similarity 0.963
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176082
Document containing X-ray diffraction results for silica and other minerals from samples collected in December 2001.
9 shared non-person entities · similarity 0.961
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176075
Laboratory data sheet showing quartz and calcite concentrations from samples collected during the Residential Sampling project.
5 shared non-person entities · 1 shared topics · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176118
Laboratory report page detailing quantitative analysis of quartz and other minerals in bulk samples from a residential building on Haddon Avenue.
6 shared non-person entities · 1 shared topics · similarity 0.956
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176072
Document presenting X-ray diffraction results for silica and mineral content from residential sampling in November 2001.
6 shared non-person entities · 1 shared topics · similarity 0.948
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.946
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.935
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000177534
Analytical report from EMSL detailing silica testing via X-ray diffraction for a project at 114 Liberty Street in April 2003.
6 shared non-person entities · 1 shared topics · similarity 0.928
machine-extracted · confidence unavailable · Check page ↗3 shared non-person entities · similarity 0.928
machine-extracted · confidence unavailable · Check page ↗6 shared non-person entities · 1 shared topics · similarity 0.927
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NYC-WTC_000176077
Revised laboratory report detailing silica analysis results for residential sampling conducted in December 2001.
Similarity score 0.985 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176066
Laboratory results for silica content in samples collected under the Residential Sampling project in December 2001.
Similarity score 0.980 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176066
Laboratory results for silica content in samples collected under the Residential Sampling project in December 2001.
Similarity score 0.980 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176099
Report detailing silica analysis results for samples collected as part of the residential environmental monitoring effort.
Similarity score 0.980 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176066
Laboratory results for silica content in samples collected under the Residential Sampling project in December 2001.
Similarity score 0.978 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176066
Laboratory results for silica content in samples collected under the Residential Sampling project in December 2001.
Similarity score 0.978 (not a probability)
machine-extracted · confidence unavailable · Check page ↗Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
Laboratory results for silica content in samples collected under the Residential Sampling project in December 2001.
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Revised laboratory report detailing silica analysis results for residential sampling conducted in December 2001.
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Report detailing silica analysis results for samples collected as part of the residential environmental monitoring effort.
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Document containing X-ray diffraction results for silica and other minerals from samples collected in December 2001.
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Laboratory data sheet showing quartz and calcite concentrations from samples collected during the Residential Sampling project.
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