NYC-WTC_000187523

NYC 9/11 Public Portal Document

Table 1 1 (cont.) Results of the Analysis for Metals in Air WA # 0-236 WTC Landfill Site

Client ID WTC-0002 WTC-0003 WTC-0004 WTC-0005 Location 0-18 0-17 P-8 P-5 Air Volume (L) 4730 4650 4790 4700 Date Collected 12/03/01 12/03/01 12/03/01 12/03/01

Analysis Cone MDL Cone MDL Cone MDL Cone MDL Parameter Method pg/m’ pg/m^ pg/m^ pg/m^ pg/m^ pg/m’ pg/m’ pg/m’

Aluminum !CAP 0.32 0.26 0.29 0.27 U 0.26 0.35 0.27 Antimony AA-Fur U 0.011 U 0011 U 0.01 U 0.011 Arsenic AA-Fur U 0.011 U 0.011 U 0.01 U 0.011 Barium ICAP 0.052 0.026 0.038 0.027 0.026 0.026 U 0.027 Beryllium ICAP U 0.011 U 0.011 U 0.01 U 0.011 Cadmium ICAP U 0.026 U 0.027 U 0.026 U 0.027 Calcium ICAP 1.9 0.53 1.7 0.54 1,1 0.52 3.4 0.53 Chromium ICAP U 0.026 U 0.027 U 0.026 U 0.027 Cobalt ICAP U 0.053 U 0.054 U 0.052 U 0.053 Copper ICAP 0.48 0.053 U 0.054 0.07 0.052 U 0.053 Iron ICAP 1.3 0.13 1.2 0.13 0.85 0.13 1.0 0.13 Lead AA-Fur 0.058 0.011 0.047 0.011 0.029 0.01 0.041 0.011 Magnesium ICAP U 2.6 U 2.7 U 2.6 U 2.7 Manganese ICAP U 0.026 U 0.027 U 0,026 U 0.027 Nickel ICAP U 0.053 U 0.054 U 0.052 U 0.053 Potassium ICAP U 11 U 11 U 10 U 11 Selenium AA-Fur U 0.011 U 0.011 U 0.01 U 0.011 Silver ICAP U 0.026 U 0.027 U 0.026 U 0.027 Sodium ICAP U 2.6 31 27 49 2.6 U 2.7 Thallium AA-Fur U 0.011 U 0.011 U 0.01 U 0.011 Vanadium ICAP U 0.053 U 0.054 U 0.052 U 0.053 Zinc ICAP 0.44 0.053 0.17 0.054 0 19 0.052 0.19 0.053

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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