NYC-WTC_000187523

NYC 9/11 Public Portal Document

Table 1.1 Results of the Analysis for Metals in Air WA # 0-236 WTC Landfill site

Client ID Media Blank #1 Media Blank#2 Media Btank#3 WTC-0006 WTC-0007 WTC-0001 Location Lab Lab Lab Lot Blank Field Blank 0-19 Air Volume (L) 0 0 4800 Date Collected 12/03/01 12/03/01 12/03/01

Analysis Cone MDL Cone MDL Cone MDL Cone MDL Cone MDL Cone MDL Parameter Method gg/filter gg/filter pg/filter pg/filter gg/filter gg/filter gg/filter gg/filter pg/filter pg/filter pg/m’ gg/m’

Aluminum ICAP U 13 U 13 U 1.3 U 1.3 U 1.3 0.33 0.26 Antimony AA-Fur U 0,05 U 0.05 U 0.05 U 0.05 U 0.05 U 0.01 Arsenic AA-Fur U 0.05 U 0.05 U 0.05 U 0.05 U 0.05 U 0.01 Barium ICAP U 0.13 U 0.13 U 0.13 U 0.13 U 0.13 0.048 0.026 Beryllium ICAP U 0.05 U 0.05 U 0.05 U 0.05 U 0.05 U 0.01 Cadmium iCAP U 0.13 U 0.13 U 0.13 U 0.13 U 0.13 U 0.026 Calcium ICAP 3.8 2.5 3.8 25 3.5 2.5 U 2.5 U 2.5 1.8 0.52 Chromium ICAP 0.81 0.13 0.92 0.13 0.69 0.13 U 0.13 U 0.13 U 0.026 Cobalt ICAP U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U 0.052 Copper ‘CAP U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 0.071 0052 Iron ICAP U 0.63 U 0.63 U 0.63 U 0.63 U 0.63 1.6 0.13 Lead AA-Fur U 0.05 U 0.05 U 0.05 U 0.05 U 0.05 0.17 0.01 Magnesium ICAP U 13 U 13 U 13 U 13 U 13 U 2.6 Manganese ICAP U 0.13 U 0.13 U 0.13 U 0.13 U 0.13 U 0.026 Nickel ICAP U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U 0.052 Potassium ICAP U 50 U 50 U 50 U 50 U 50 U 10 Selenium AA-Fur U 0.05 U 0.05 U 0.05 U 0.05 U 0.05 U 0.01 Silver ICAP U 0.13 U 0.13 U 0.13 U 0.13 U 0.13 U 0.026 Sodium ICAP U 13 U 13 U 13 U 13 U 13 U 2.6 Thallium AA-Fur U 0.05 U 0.05 U 0.05 U 0.05 U 0.05 U 0.01 Vanadium ICAP U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U 0.052 Zinc ICAP U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 0.31 0.052

MDL denotes Method Detection Limit U denotes less than the MDL (not detected) Average Media Blank concentration subtracted from all sample results

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cn COC WTC12/03/01-Metals CO 12-3-01 a irmetalsERTC ERTC 12/14/01

NYC-WTC_000187523