Transmission electron microscopy air monitoring report for asbestos analysis at townhouses, November 2001.
NYC-WTC_000108315–000108366Folder label: “51 HARRISON STREET; Block: 142 Lot: 50 BIN: Independence Plaza”
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
TRANSMISSION ELECTRON MICROSCOPY (TEM) METHODOLOGY
technique, which focuses an electron beam Transmission Electron Microscopy (TEM) is a beam microscope column (under a vacuum). As the onto a thin sample mounted in the resulting from varying density of the sample is transmits through the sample, an image collected on either samples for TEM analysis can be projected onto a fluorescent screen. Air direct transfer polycarbonate filters and are prepared using mixed cellulose ester or preparation allows for the transfer of a carbon- techniques (as per EPA regulations). Direct on to a the filter material (with embedded fibers and particulates, etc.) right coated replica of intermediate Indirect transfer techniques require an copper grid suitable for TEM analysis. may break-up fiber bundles, resulting in an increased fiber amount. step that for the preparation and analysis of air samples by electron Several methods exist ry and non-mandatory microscopy. Most signif;cant are the mandaAHERARegulations). These methods arettoobe as appendices to 40 CFR 763, Subpart E ( projects. air samples on school abatement used for analysis of final clearance represented by each fiber analytical sensitivity is the airborne asbestos concentration collected the The determined air electron s counted under the fivty be no microscope~e{hod requires that the analytcal elns proportion of the filter examined. This . greater than 0.005 structures/cc. register but their sow indicators Sampling pumps must be calibrated and ank are' to be taken by removing the cap for +is no more than 10 liters/min. Two (2) field is be crried with each samle set. blank more than 30 seconds. A sealed IedaThese samples are spbmtted tohthe representative cassette is not to be opened in thef eriod f for quality control purposes. The sampling houl be broPght tooa laboratory liters of air. Thesamples darelate~ time to conform at least a volume of 1200 certified laboratory for the analysis.
NYC-WTC 000108363
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NYC-WTC_000109351
October 2001 TEM air monitoring inspection report for common areas and apartments at 310 Greenwich Street.
23 shared non-person entities · Same agency, volume and box · similarity 0.981
machine-extracted · confidence unavailable · Check page ↗10 shared non-person entities · 1 shared topics · Same agency, volume and box · similarity 0.961
machine-extracted · confidence unavailable · Check page ↗25 shared non-person entities · similarity 0.987
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000117493
Cover page for a report detailing annual assessment, bulk sampling, and air monitoring activities at the specified address.
10 shared non-person entities · similarity 0.963
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000095478
Cover page for an air monitoring and bulk sampling report for Building #200 at 375 South End Avenue.
12 shared non-person entities · 1 shared topics · similarity 0.961
machine-extracted · confidence unavailable · Check page ↗5 shared non-person entities · 1 shared topics · similarity 0.960
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000104679
Report detailing dust sampling from hospital entrances to determine asbestos content following the September 11 attacks.
9 shared non-person entities · 1 shared topics · similarity 0.959
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000121138
Air monitoring report for 345 South End Avenue buildings conducted in December 2001 showing TEM results.
5 shared non-person entities · 1 shared topics · similarity 0.959
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000092671
Laboratory report on TEM analysis of carpet mastic glue samples from residential building common corridors confirming absence of asbestos.
16 shared non-person entities · similarity 0.958
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000117668
Chain of custody documentation for bulk sampling and air monitoring at 385 South End Avenue Building 500.
10 shared non-person entities · 1 shared topics · similarity 0.958
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000121258
Air monitoring report for 345 South End Avenue buildings conducted in January 2002 showing TEM results.
6 shared non-person entities · 1 shared topics · similarity 0.956
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000149432
DEP asbestos project notification form and inspection report dated December 12, 2002.
14 shared non-person entities · 1 shared topics · similarity 0.956
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NYC-WTC_000148952
Table listing volatile organic compound (VOC) sampling sites and dates outside of Ground Zero from September 2001 to January 2002.
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NYC-WTC_000109351
October 2001 TEM air monitoring inspection report for common areas and apartments at 310 Greenwich Street.
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NYC-WTC_000146129
Correspondence from NYC Corporation Counsel providing comments on excerpts of a draft EPA evaluation report regarding the WTC response.
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NYC-WTC_000149346
A chain of custody cover sheet for air monitoring samples sent to the EPA Region 1 laboratory in January 2003.
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NYC-WTC_000161139
Distribution list coordinating World Trade Center environmental response among EPA, DEC, FEMA, OSHA, CDC, and city agencies.
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