NYC 9/11 Public Portal Document
Unit 3A Results
9094-W-3A-018 Wipe ND < 11832 S/cm2 Particulate matter; sensivity
(11832 s/cm2) not reached.
9094-W-3A-019 Wipe 3957.2 S/cm2 Chrysotile
9094-W-3A-020 Wipe 3165.76 S/cm2 Chrysotile
9094-W-3A-021 Wipe ND < 2366.41 S/cm2 Chrysotile
Dioxin TEQ EMPC (ND=1/2)
Before cleaning
Sample ID Matrix Detected Result Comment
9094-W-3A-002 Wipe 0.54 ng/m2
9094-W-3A-003 Wipe 0.616 ng/m2
9094-W-3A-004 Wipe 0.592 ng/m2
Post 1st cleaning - Test 2B
Sample ID Matrix Detected Result Comment
9094-W-3A-018 Wipe 0.535 ng/m2
9094-W-3A-019 Wipe 0.606 ng/m2
9094-W-3A-020 Wipe 0.597 ng/m2
9094-W-3A-021 Wipe 0.706 ng/m2
Gypsum
Post 1st cleaning - Test 2B
Sample ID Matrix Detected Result Comment
9094-A-3A-015 Air ND < 0.016 mg/m3
9094-A-3A-016 Air ND < 0.017 mg/m3
Lead
Before cleaning
Sample ID Matrix Detected Result Comment
9094-M-3A-006 Microvac ND < 4.65 ug/ft2
9094-M-3A-007 Microvac ND < 4.65 ug/ft2
9094-M-3A-008 Microvac ND < 4.65 ugZft2
9094-M-3A-009 Microvac ND < 4.65 ug/ft2
9094-W-3A-002 Wipe ND < 4.65 ug/ft2
9094-W-3A-003 Wipe 38.9 ug/ft2
9094-W-3A-004 Wipe 12 ug/ft2
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NYC-WTC_000145242
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