NYC-WTC_000210784

NYC 9/11 Public Portal Document !| ’ 1 PEDNEAULT ASSOCIATES, INC. NYCDEP - WTC 631-467-8477 5-BORO SAMPLING METALS IN AIR ' [CALCULATION FOR OSHAID121/12SG- METALS IN AIR VIA CASSETTE HLTER (37MM MILLIPORE) & MOBILE VACUUM PUMPS 1 |A= Concentration of Analyte in sample solution (ng/ml) or (mg/L) I jB=Concentration of Blank in sample solution (pg/ml) or (mg/L) jSSV« 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) !rABSV- Reagent Blank Sample Volume I !d= DUution Factor (NONE) I iNO GRAVIMETIC FACTORS For the Trip Blank Analytical Value: AR= (B X BSV) - (RAB X RABSV) I IAV= Air Volume Sampled lAR=Analytical Result lARR=^aIytical Rejport^ieJlesuIthiL mg/m^\J:roim^d_offto_^sigmay wJ ‘ AV I

SSVm A Y SSV^^ASSV B (mg/Lf BSV (mL) B^^BS^^B|v|ASSV^BSSWAR|^Ltters|ggR/AV^^^ -YANALYTE^ 0.08 100 8 0.073 100 7.3 0.7 30 0.0233333 Aluminum- Al 0.02 ""o'oas"' 2.5 b’.ori 1.4 30 0.0466667 Antimony-Sb 0.05 '"6'.'o'68" ""'o'bos"" 100 100 100 0.8 0.3 0.002 0.002 100 100 100 0.2 4^ 0.6 0.1 30 0.02 Arsenic-As 30 0.0033333 Barium-Ba 0.02 <0.01 ■'"o.b6i"" 100 0.1 100 0 0.1 30 0.0033333 Beryllium-Be <0.01 ""6"o'6i"" 100 0.1 ■o.ooT 100 0.1 0 30 0 Cadmium-Cd <0.01 ""o.‘4‘i9"' 100 41.9 0.273 100 27.3 14.6 30 0.4866667 Calcium-Ca 0.5 ""0.008"' 100 0.8 0'065 100 0.5 0.3 30 0.01 Chromium-Cr 0.01 ""b'.b'i4"' 100 1.4 0^9 100 0.9 0.5 30 0.0166667 Copper-Cu 0.02 ""0.1'15"" 100 11.5 0.036 100 3.6 7.9 30 0.2633333 Iron-Fe 0.26 ""o.'666"" 100 0.6 oToo? 100 6.7 -0.1 30 -0.0033333 Lead-Pb <0.01 ""0'077 ■ 100 7.7 0.057 100 5.7 2 30 0.0666667 Magnesium-Mg 0.07 ""0.01'9 " 100 1.9 o’bos 100 0.5 1.4 30 0.0466667 Manganese-Mn 0.05 o 100 100 30 Mercury-Hg <0.01 H 0.002 100 0.2 -0.001 100 -0.1 0.3 30 0.01 Nickel-NI 0.01 K I ■"6'1'62" 100 10.2 100 9.1 1.1 30 0.0366667 Potassium-K 0.04

I '"o'ocs"* ■"6'.6'62" 100 100 0.8 0.2 -0.001 ”7o.b02 100 100 -0.1 -0.2 0.9 0.4 30 0.03 Selenium-Se 30 0.0133333 Silver-Ag 0.03 0.01 o o '"'i'.65i'"' 100 165.1 100 141.7 23.4 30 0.78 Sodium-Na 0.78 Io "■-■6?66'i" 100 -0.1 -0.001J 100 -0.1 0 30 0 Thallium-TI <0.01 o CO '■"o.O4i"” 100 47 ■■”631 100 3.1 1 30 0.0333333 Zinc-Zn 0.03 CR I—i LAB ID #01100376-006 O LO CO NYCDEP - BAY STR 8e VICTORY BLVD. SI / ICK# CH CQ/Mvr'nco x/io

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NYC-WTC_000210795