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Potassium lab results, WTC samples, Nov 1 2001

Machine-extracted title · confidence 90%

Laboratory report listing sample IDs and QC data for potassium analysis of World Trade Center environmental samples dated November 1, 2001.

NYC-WTC_000065821–000065850

Folder label: “K 11/1/01

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NYC 9/11 Public Portal Document

Element: K Seq. No.: 12 AS hoc.: Date: 11/01/2001 .Sample ID: Blk v

Repl SampleConc StndConc BlnkCorr Time # Mg/L MQ/L Signal 1 -49.94 -49.94 -0.011 11:47:53 2 -55.00 -55.00 -0.012 11:48:00 3 -55.12 -55.12 -0.012 11:48:07 4 -60.43 -60.43 -0.013 11:48:14 Mean: -55.12 -55.12 -0.012 SD : 4.284 4.284 0.001 %RSD: 7.77 7.77 5.90

Element: K Seq. No.: 13 AS Loc.: Date: 11/01/2001 Sample ID: 25381

Repl SampleConc StndConc BlnkCorr Time # /ig/L Atg/L Signal 1 957.7 957.7 0.156 11:48:37 2 987.6 987.6 0.161 11:48:44 3 990.5 990.5 0.161 11:48:51 4 985.4 985.4 0.160 11:48:59 Mean: 980.3 • 980.3 0.159 SD : 15.21 15.21 0.003 %RSD: 1.55 1.55 1.58

>SSSS = ZSSSSSSSSS = = S5SS = SSSSSS;SSS5ZSSSSSSB8SSZSS5 = SSS

Element: K Seq. No.: 14 AS Loc.: Date: 11/01/2001 Sample ID: 25384

Repl SampleConc StndConc BlnkCorr Time # gg/L /xg/L Signal 1 14780 1478 0.242 11:49:20 2 14750 1475 0.241 11:49:27 3 14960 1496 0.245 11:49:34 4 14860 1486 0.243 11:49:41 Mean: 14840 1484 0.243 SD : 95.06 9.506 0.002 %RSD: 0.64 0.64 0.65

iSSSBBSBSSSSBBSSBSaBSSSSSSSSSSSSBSSBSSBSBBBBSBBaSSSBBBSSSSSSBSBSSSSSSSBBS&SSSSBSSBBBSSBSSSSSSBSBS

Element: K Seq. No.: 15 AS Loc.: Date: 11/01/2001 Sample ID: 26204

Repl SampleConc StndConc BlnkCorr Time # /ig/L gg/L Signal 1 470.6 470.6 0.075 11:50:07 2 473.2 473.2 0.075 11:50:14 3 466.6 466.6 0.074 11:50:22 4 465.9 465.9 0.074 11:50:29 Mean: 469.1 469.1 0.075 SD : 3.436 3.436 0.001 %RSD; 0.73 0.73 0.76

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NYC-WTC_000065826

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NYC-WTC_000065826Source: NYC Law Department, mirrored locally

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