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Potassium sample log, WTC site, Nov 18 2001

Machine-extracted title · confidence 90%

Log entry for potassium sample processing activities at the World Trade Center site on November 18, 2001.

NYC-WTC_000065920–000065955

Folder label: “K 11/18/01

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Scanned page image, NYC-WTC_000065943
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NYC 9/11 Public Portal Document

Element: K Seq. No.: 80 AS Iioc. : Date: 11/18/2001 Sairqple ID: ^7492 - _______________ Ap- Repl SampleConc StndConG BlnkCorr Time # gg/L--^^ gg/L Signal 1 C2097^ 2097 0.430 12:42:15 2 980.5 980.5 0.201 12:42:23 3 -49.33 -49.33 -0.011 12:42:30 4 -51.44 -51.44 -0.011 12:42:37 Mean: 744.1 744.1 0.152 SD : 1024 1024 0.210 %RSD: 137.7 137.7 138.42

Element: K Seq. No.: 81 AS Log.: Date: 11/18/2001 Sample ID:

Repl SampleConc StndConc BlnkCorr Time # gg/L Mg/L Signal 1 1123 1123 0.230 12:43:36 2 1118 1118 0.229 12:43:43 3 1115 1115 0.228 12:43:50 So 4 1126 1126 0.230 12:43:57 Mean: 1120 1120 0.229 SD : 4.963 4.963 0.001 %RSD: 0.44 0.44 0.44

:s=sss8asassssssaasssass8ssssaa=assasBsasssa=aaa8sasssassBssassBaass8assassassassBaasss Element: K Seq. No.: 82 AS Log.: Date: 11/18/2001 Saniple ID:

Repl San^leConc StndConG BlnkCorr Time # Mg/L MS/L Signal 1 500.3 500.3 0.102 12:44:25 2 486.9 486.9 0.099 12:44:32 3 483.8 483.8 0.099 12:44:40 4 477.3 477.3 0.097 12:44:47 Mean: 487.1 487.1 0.099 SD : 9.680 9.680 0.002 %RSD: 1.99 1.99 2.00

SBSSSSBBaaaSBBaBSBBSBBBSBSBBBaBBBBBSaaS Element: K Seq. No.: 83 AS Log.: Date: 11/18/2001 San5>le ID:

Repl SampleConc StndConG BlnkCorr Time # Mg/L Atg/L Signal 1 547.1 547.1 0.112 12:45:22 2 543.4 543.4 0.111 12:45:29 3 552.2 552.2 0.113 12:45:36 4 556.0 556.0 0.113 12:45:44 Mean: 549.7 549.7 0.112 SD 5.539 5.539 0.001 %RSD: 1.01 1.01 1.02

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NYC-WTC_000065943

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NYC-WTC_000065943Source: NYC Law Department, mirrored locally

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