OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Post Cleaning Samples - Two air samples were collected after the second cleaning. Both samples detected concentrations below the primary clearance criterion.
Alpha-Quartz Before Cleaning Samples - Pre-cleaning air samples were not collected. w Post P‘ Cleaning Samples - Two air samples were collected after the first cleaning. All samples were below the detection limit.
Calcite Before Cleaning Samples - Pre-cleaning air samples were not collected.
Post P‘ Cleaning Samples - Two air samples were collected after the first cleaning. All of the samples were below the detection limit. Because all of the samples were below the detection limit after the first cleaning, no additional samples were collected for analysis of calcite.
Cristobalite Before Cleaning Samples - Pre-cleaning air samples were not collected.
Post J" Cleaning Samples - Two air samples were collected after the first cleaning. All of the samples were below the detection limit. Since all of the samples were below the detection limit after the first cleaning, no additional samples were collected for analysis of cristobalite.
Tridymite Before Cleaning Samples - Pre-cleaning air samples were not collected
Post P‘ Cleaning Samples - Two air samples were collected after the first cleaning. All of the samples were below the detection limit. Since all of the samples were below the detection limit after the first cleaning, no additional samples were collected for analysis of ND tridymite.
MMVF Before Cleaning Samples - Three pre-cleaning wipe samples were collected. The three wipe samples detected MMVF in concentrations from 343.39 S/L to 744.01 S/L. This indicates that MMVF was present prior to cleaning.
Post P‘ Cleaning Samples - Three air samples and five wipe samples were collected after the first cleaning. All of the air sample results indicate that MMVF was present at levels below the primary clearance criterion of 10 S/L. All of the wipe sample results were W above the detection limit and at concentrations similar or lower than the pre-cleaning samples.
Post Cleaning - Five air samples were collected after the second cleaning. Four of the five samples were below the primary clearance criterion of 10 S/L. However, one sample exceeded the primary clearance criterion at 91.796 S/L. This value was further evaluated
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CITY_21MC100_011105283
NYC-WTC_000195249
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machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
NYC-WTC_000145695
Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.
Similarity score 0.997 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000145695
Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.
Similarity score 0.992 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000145695
Form documenting the tracking and handling of environmental samples collected by the Department of Environmental Protection.
Similarity score 0.991 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000145695
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000145695
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000145695
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machine-extracted · confidence unavailable · Check page ↗Machine-extracted building matches; verify each source. Buildings, never households.
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