VOC sampling locations table for Ground Zero area, Jan 2002

NYC 9/11 Public Portal Document

Table 3. Elemental and Ion Analysis of WTC2001 Samples “

Sample: WTC 3 WTCX (pooled) WTCB MSH ROFA NIST Diluent: DI HjO IM HCl none DIHjO IM HCl DIH2O DI H2O IM HCl DI H2O IM HCl DIH2O No. Analyses: 4 4 5 2 1 1 2 1 2 1 1 Analyte SO/’ 376488.6 344439.8 375300 439120.3 3794294 4325703 9553 9734 274962.0 242277.8 867253 Ca 184904.4 218019.2 265600 1874923 1967453 183794.1 2535 1970,8 18590,8 19663.0 12649.5 Si 30000 AI 1346.3 40723 9930 555.7 (*) 1476.8 537.1 (*) 48.4 (*1 1260.4 6729,8 8604,2 1049.1 Mg 1112.9 5414.1 6550 6535 2257,6 354.1 212 12503 24895.8 246552 1140.7 Fe 150.0 (*) 24504 6290 63n 1098,5 60(*) -0-1 (*) 18234 7^ 19512.4 407,5 Cl- 28S1.0 3330 2699.0 1103.0 302.0 1164.0 K 2690 Zn 22.7 1413.1 1760 13.4 410.1 4.1 -0.0 (*) 3.7 6555,9 5932,2 503.9 Ti 12.1 180.9 1450 5.2 41.6 4.0 33 17.6 2.6 137.5 1.8 Na* 1290.0 725 1139.0 721.0 44179.0 21S3.0 NOj- 938.0 6496.0 0.0 0.0 7390.0 PO/’ 0.0 779 0.0 0.0 0.0 3317.0 F- 406.0 799.0 0.0 352.0 466.0 Pb 2.2 141.3 0.7 33.4 0.4 0.0 (*) 0.5 17.9 789.6 1378.7 Mn 4.5 107.9 38 24.0 0.7 3.8 38.4 365.0 458.6 77.2 Cu 5.5 76.0 6.4 238 4.7 0.6 6.8 572.8 628.4 83.6 Ba 25.6 75.6 8.7 330 7.2 0.1 (*) 5.0 3.0 57.5 132 Sb 17.7 43.8 9.4 17.4 7.0 0.0 (*) -0.0 (*) 35 146.5 3.5 NO; 38.0 0.0 0.0 0.0 0.0 Mo 1.0 33.7 38 3.2 4.9 0.1 0.1 0.0 (*) 339.3 38 Ni 2.6 19.7 4.1 3.1 38 0.0 0.9 170212 1«2 32.2 Sn 0.8 12.1 33 3.1 0.1 (*) 0.0 (*) 0.0 (*) 0.0 (*) 51.0 0.1 {*) Cr 10.0 34(*) 1.2(») 0.1 (*) 6.1 6.1 Cd 0.3 7.2 0.7 1.9 0.3 0.0 0.0 8.9 11.9 19.9 Be -0.0 (*) 2.7 (*) 0.3 (*) 0.2 (*) -0.1 (*) 0.0 (*) 0.0 (*) 34(*) 1.7 (*) 0.1 (*) Co 03C) 1.6 0.8 0.9 0.1 (*) 0.0 (*) 0.4 (*) 495.0 510.4 2.1 As 1.3 -10.4 (*) 31 -0.4 (*) 0.3 O.I 0.2 37 106.4 13.5 Tl 0.1 (*) -25.5 (*) 0.5 -1.2 (*) 0.1 (*) 0.0 (*) -0.1 (*) 0.0 (*) -0.2 (*) 0.3 V 1748.6 256936 NH/ 0.0 0.0 0.0 0.0 253S5.0 Total (xg/g: 569632 576475 704404 639019 581598 617299 3223 7362 397593 376566 143953 % Total Mass: 57.0 57.6 70.4 63.9 58.2 61.7 0.3 0.7 39.8 37.7 14.4 ’ Results shown are average values for number of analyses indicated, expressed as pg soluble analyte / g solid sample extracted, for deionized (DI) water and IM HCl extractions. Analyte concentrations were determined by ICP-MS, except underlined values which were determined by ICP-AES, bold values which were determined by ion chromatography, and column labelled none, where solid sample was analyzed by XRF (indicated by heavy solid-line box). (*) Value below detection limit. Analytes are arranged in order of decreasing content in WTC 3 sample, by whatever analysis provided highest content.

complex oxides usually in combination with silicon, are concrete (NIST, 2002; McKetta, 1978). much less soluble under the acid extraction conditions Comparison of the water-soluble transition and heavy used in this study, and do not agree as well (Weast, 1985; metal content of the WTC PM samples with the control Budavari, 1996). The weight-percent ratios of silicon, dusts shows the overall metal level trend as Mt. St. Helens aluminum, magnesium, and iron are in the proportion of < WTC2001 < NIST < ROFA. ROFA has high levels of those found in portland cement, a major component of water-soluble transition metals including vanadium,

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