5 shared non-person entities · 1 shared topics · similarity 0.947
machine-extracted · confidence unavailable · Check page ↗Contaminant of Potential Concern exceedance table, Unit 2A
Machine-extracted title · confidence 90%Table comparing contaminant levels before and after cleaning for Unit 2A, including dioxin, PAHs, asbestos, and lead.
NYC-WTC_000186138–000186172
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
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Internal Review Draft
CONTAMINANT OF POTENTIAL CONCERN (COPC) EXCEEDANCE BY EVENT TABLE [ADD] - UNIT 4B, TEST 2B
Cleanup Criteria Pre-Cleaning Post - F rst Cleaning Post - Second Cleaning COPC Air Wipe MV Air [Wipe" MV Air Wipe MV Air Wipe MV Dioxin 0.001 ng'm3 4 ng/m2 PAH 0.2 ug/m3 300 ug/m2 Asbestos 0.0009 f/cc n/a
Lead 1 ug/m3 25 ug/ft2 25 ug/ft2 ;; 50
MMVF 0.01 f/cc ri/a Silica 4 ug/m3 h/a
MV = Microvac
O H hC I ro
R o I o
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NYC-WTC_000186155
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