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
107 Haddon Avenue 4 EMSL Analytical, Inc.- tvestmont, NJ. 08108 (856) 858-4800 12/26/01 Atteatioo: U.S. EPA HQ Financial Services Division 120(1 Pennsylvania Avenue NW Maildrop 2734R Washington, DC. 20460
Project: Residential Rc£ Number: 360100701
Silica Analysis Performed by Method MOSH 7500 Crystalline Particle Analysis Performed by X-Ray Diffraction (XRP)_________ PfuLvance Dust Airborne Particulate Sample Sample Auftlj'te Aiialjtc % .Analytical Weight Cone. Weight Couc. Analyte Seusitivity Sample ID Identification Analjie ID Volume (mg) (mg/m’) (ms) (mst/m’) (L)
[R1IF-R2-23 Quam 1550 0.037 0.0239 <0.004 ■;AS N;A 0.0026 CristobalitE <0.012 <AS 0.0077 Tridymile H/A N/A N/A Calcite <0.004 <AS 0.0026 Ponland/ Lime <0.020 •cAS 0.0128 Gypsum <0.004 <AS 0.0026 Mica <0.011 •cAS 0.0071 Mallie <0.006 <AS 0.0039 Fibrous Glass ND <AS O.eASO
lRJBRF-A-23 Quartz 0 A N/A <0,004 N/A N/A N/A Cristobalite <0.012 N/A N/A T ridymiie 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 <0.008 N/A N/A Fibrous Glass ND WA WA
[RJBRF2-B-23 Quartz 0 0.011 N/A <0.004 N/A N/A N/A Cristobalite <0.012 N/A N/A Ttidymil® N/A N/A N/A Calais <D.OO4 N/A N/A Poniarid/ Lima <0.020 N/A N/A Gypsum <0.004 N/A N/A Mica <0.011 N/A N/A Halite <0.006 N/A N/A Fibrous Glass ND WA WA fi’woys C/ess fUsuftt a/e in tth&m per cubic M
John Newton 26 December, 2001 Analyst Date of Analysis Disclaimer: The laboratory can only verify the concentrations of analytes on the filter and not the final concentrations due lo data obtained by non-labonitory personnel. In the absence of a bulk du.st sample, the specific form of crystalline silica can not be determined. Hcncc. alptia-q^^nz. the most prevalent form of crystalline silica, will be ussumed. =• toss than ihc tiaied value The lowest reportable value 1.4 equivalent to the Analytical Sensitivity whitA is calculated from tlie lowest rcprtxluciblc concentration ol'silica detectable by the instrumciiT. AHA Accredited - laboratory ID«/100192
CONFIDENTIAL, CITY_21MC100_003423316
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176094
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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
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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
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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
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NYC-WTC_000176066
Laboratory results for silica content in samples collected under the Residential Sampling project in December 2001.
Similarity score 0.979 (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 0.975 (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 0.975 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176077
Revised laboratory report detailing silica analysis results for residential sampling conducted in December 2001.
Similarity score 0.975 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000176077
Revised laboratory report detailing silica analysis results for residential sampling conducted in December 2001.
Similarity score 0.974 (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 0.974 (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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