NYC-WTC_000220576

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o 631-467-8477 5-BORO SAMPLING o co g METALS IN AIR jCALCUIATION FOR OSHA ID121/125G - METALS IN AIR VIA CASSETTE FILTER (37MM MILLIPORE) & MOBILE VACUUM PUMPS ■D o c o CT o jA= Concentration of Analyte in sample solution (pg/ml) or (mg/L) j ro I o' ro jB=Concentration of Blank in sample solution (pg/ml) or (mg/L) j ■D o O cn 3. co JSSV= Sample Solution Volume ASSV= Analyte concentration x Sample Solution Volume j AR= (A X SSV) • (B X BSV) 91 >DSV=Blank Sample Volume BBSV=Blank concentration x Blank Sample Volume • AV O I o !rAB= Reagent Blank Concentration (pg/ml) or (mg/L) ! o c !rABSV= Reagent Blank Sample Volume J 3 I CD

jD= Dilution Factor (NONE) I Ino gravimetic factors I TB= TRIP/FI ELD BLANK I For the Trip Blank Analytical Value: I AV= Air Volume Sampled I AR= (B X BSV) - (RAB X RABSV) I I AR=Analytical Result i AV I lARR=AnalyticaI Rejportable Result in mji^/m’ (rounded off to 3-sigma) J

TB (mg/L) BSV (mL) TB X TBSV = BBSV RAB (mg/L) RABSV (mL) RAB X RABBSV = RABBSV TB-RAB = AR AV Liters AR/AV ANALYTE ARR mg/m’ 0.223 100 22.3 0.342 100 34.2 -11.9 30 -0.3966667 Aluminum-Al <0.01 ■o?654 100 2.4 ‘“0.056 100 5.6 -3.2 30 -0.1066667 Antimony-Sb <0.01 '6?6(» 100 0.3 ■■■"o?6T 100 1 -0.7 33 -0.0233333 Arsenic-As <0.01 'oAoia 100 40.2 ■"■"6^55 100 55 -14.8 30 -0.4933333 Barium-Ba <0.01 o;6di' 100 0.1 ”’o.ooT 100 0.1 0 ______ 30 0 Beryllium-Be <0.01 ■-'6?66'i 100 -0.1 100 0 -0.1 30 -0.0033333 Cadmium-Cd <0.01 'ojsie WOi 31.6 100 31.6 0 30 0 Calcium-Ca <0.01 ■6?6d4 100 0.4 0.002 100 0.2 0.2 30 0.0066667 Chromium-Cr <0.01 ■6?6d2 100 0.2 ■"'d'ooa 100 0.2 0 30 0 Copper-Cu <0.01 'oTiad 100 13.9 "‘0.063 100 6.3 7.6 30 0.2533333 Iron-Fe 0.25 ■-6?6d4 100 -0.4 “-0.065 100 -0.5 0.1 ______ 30 0.0033333 Lead-Pb <0.01 ■6?66i 100 6.1 O?64 100 4 2.1 30 0.07 Magnesium-Mg 0.07 '6?623' 100 2.3 '”6’.O23 100 2.3 0 30 0 Manganese-Mn <0.01 o 100 100 30 Mercury-Hg <0.01 H 0.003 100 0.3 '0.063 100 0.3 0 30 0 Nickel-NI <0.01 I ’'6?5'83 100 58.3 '0.744 100 74.4 -16.1 30 -0.5366667 Potassium-K <0.01

I o ■-6?668 ’ojodf ■■2?626‘ 100 100 -0.8 0.1 '67617 'd7d6T 100 100 1.7 0.1 -2.5 0 30 -0.0833333 Selenium-Se 30 0 Silver-Ac' <0.01 <0.01 100 262.6 '3'268 100 320.8 -58.2 30 -1.94 Sodium-Na <0.01 o 0 100 0 '-'o7o'64' 100 -0.4 0.4 30 0.0133333 Thallium-TI 0.01 TO CO ■■6?227 100 22.7 '"'o'a 100 30 -7.3 30 -0.2433333 Zinc-Zn <0.24 CO CR LAB ID #01110052-008 *<0 MV^nCD . TDID/CIPI n RI AMK