NYC-WTC_000210768

NYC 9/11 Public Portal Document

PEDNEAULT ASSOCIATES, INC. NYCDEP - WTC 631-467-8477 5-BORO SAMPLING .. METALS IN AIR [CALCULATION FOR OSHA ID 121/125G-METALS IN AIR VIA CASSETTE FILTER (37MM MILl.IPORE) & MOBILE VACUUM PUMPS : j jA- Concentration of Analyte in sample solution (pg/ml) or (mg/L) Ifl I jB»Concentiation of Blank In sample solution (pg/ml) or (mg/L) I I •SSV- Sample Solution Volume ASSV- Analyte concentration x Sample Solution Volume ■ AR= (A X SSV) - (B X BSV) I ■BSV-Blank Sample Volume BBSV-Blank concentration x Blank Sample Volume AV I !rAB- Reagent Blank Concentration (pg/ml) or (mg/L) I JrABSV-Reagent Blank Sample Volume I I Jd- Dilution Factor (NONE) I I fl

Ino gravimetic factors I For the Trip Blank Analytical Value: i AR= (B X BSV) - (RAB X RABSV1 I IAV= Air Volume Sampled AV IAR=Analytical Result I ARR=Ana^ic^Rcj»ort^IcJRcmIt_in<d(roi^^d_off^^ I-

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lA(m^ SSV (mL) A x SSV = ASSVyBXnig^ BSV(mL) B X BSV = BBSV ASSy -BSSV -:'AR AV Liters ^»AR/AV ' ANALYTE ■fy'ARRrrigzffy 0.09 100 9 0.069 100 6.9 2.1 30 0.07 Aluminum- Al 0.07 ■"■d7)34^"’ 100 3.4 '■0.025 100 2.5 0.9 30 0.03 Antimony-Sb 0.03 ■"^adw'”; ■"-0.015 30 0.02 Arsenic-As 0.02 12^ -0.9 100 -1.5 0.6 ■■■■o.ods'■■ 100 0.3 "O.‘663 100 0.3 0 30 0 Barium-Ba <0.01 ■■■■■-o.^oT'^^ 100 -1 '"-o.‘o"iT 100 -1.1 0.1 30 0.0033333 Beryllium-Be <0.01 100 -2.1 ■"-O.(j2l' 100 -2.1 0 30 0 Cadmium-Cd <0.01 ""l'7‘34^"' 100 173.4 100 136.8 36.6 30 1.22 Calcium-Ca 1.22 ■■"d’oiT^" 100 1.2 ...0.006 100 0.6 0.6 30 0.02 Chromium-Cr 0.02 100 -5.3 -0.05 100 -5 30 -0.01 Copper-Cu <0.01 ; ■■■‘0.l'69"’ 100 16.9 '"o.‘d4l‘ 100 12.8 30 0.4266667 Iron-Fe 0.43 ■■■■.:or6i2“' 100 -1.2 100 -1.3 0.1 30 0.0033333 Lead-Pb <0.01 "■■d".244—' 100 24.4 100 22.1 2.3 30 0.0766667 Magnesium-Mg 0.08 ""o.T62^^^’ 100 10.2 O.'d88 100 8.8 1.4 30 0.0466667 Manganese-Mn 0.05 o 100 100 30 Mercury-Hg <0.01 H 0.005 100 0.5 ..0.002 100 0.2 0.3 30 0.01 Nickel-NI 0.01 ■"0.692‘” 100 69.2 0.661 100 66.1 3.1 30 0.1033333 Pofassium-K 0.1 N)

I o ■■"o.oiV" -0.09 100 100 1.5 -9 ■■0.0i5 ■■■-o?d9 ■■4.1'73' 100 100 1.5 -9 0 0 30 30 0 Selenium-Se 0 Silver-Ag <0.01 <0.01 jOO 355.5 100 417.3 -61.8 30 -2.06 Sodium-Na <0.01 1^ o ""drodT"’ 100 -0.2 ■■■-0.0M 100 -0;3 0.1 30 0.0033333 Thallium-Tl <0.01 o ■■■’0'03 ■■"0.086"" 100 8.6 100 ___ 6 5.6 30 0.1866667 Zinc-Zn 0.19 CO cn LABTd‘#01 100280-004 ■ 1

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NYC-WTC_000210775