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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.: 48 AS Log.: Date: 11/01/2001 .San^Jle ID: 26391

Repl San^leCono StndCono BlnkCorr Time # /tg/L /ig/L Signal 1 437.9 437.9 0.070 12:14:18 2 446.5 446.5 0.071 12:14:26 3 441.0 441.0 0,070 12:14:33 4 445.0 445.0 0.071 12:14:41 Mean: 442.6 442.6 0.070 SD : 3.887 3.887 0.001 %RSD: 0.88 0.88 0.91

Element: K Seq. No.: 49 AS Log.: Date: 11/01/2001 Sample ID: 26392

Repl SampleCono StndCono BlnkCorr Time # Atg/L Signal 1 443.3 443.3 0.071 12:15:01 2 443.7 443.7 0.071 12:15:08 3 444.3 444.3 0.071 12:15:15 4 443.6 443.6 0.071 12:15:22 Mean: 443.7 443.7 0.071 SD : 0.4040 0.4040 0.000 %RSD: 0.09 0.09 0.09

Element: K Seq. No.: 50 AS Log.: Date: 11/01/2001 San^jle ID: 26393

Repl SampleCono StndCono BlnkCorr Time # /ig/L Mg/L Signal 1 439.2 439.2 0.070 12:15:43 2 443.5 443.5 0.071 12:15:50 3 445.2 445.2 0.071 12:15:57 4 447.5 447.5 0.071 12:16:04 Mean: 443.8 443.8 0.071 SD : 3.508 3.508 0.001 %RSD: 0.79 0.79 0.82

Element: K Seq. No.: 51 AS Log.: Date: 11/01/2001 San^Jle ID: QCS

Repl SampleCono StndCono BlnkCorr Time # Mg/L gg/L Signal 1 464.5 464.5 0.074 12:16:27 2 469.2 469.2 0.075 12:16:35 3 466.5 466.5 0.074 12:16:42 4 468.9 468.9 0.075 12:16:49 Mean: 467.3 467.3 0.074 SD : 2.216 2.216 0.000 %RSD: 0.47 0.47 0.49

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NYC-WTC_000065835

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NYC-WTC_000065835Source: NYC Law Department, mirrored locally

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