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I |CA1.CULATION FOR OSHA 1D121/125G- METALS IN AIR VIA CASSETTE FILTER (37MM MILLIPORE) & MOBILE VACUUM PUMPS o ■D o c o j A= Concentration of Analyte in sample solution (pig/ml) or (mg/L) CT ro I o' KJ jB=Concentration of Blank in sample solution (pig/ml) or (mg/L) o ■D cn I o 00 jSSV= Sample Solution Volume ASSV= Analyte concentration x Sample Solution Volume AR= (A X SSV) - (B X BSV) 3. 51 ■ BSV=Blank Sample Volume BBSV=Blank concentration x Blank Sample Volume AV I O !rAB= Reagent Blank Concentration (pig/ml) or (mg/L) o o c ! RABSV= Reagent Blank Sample Volume I 3 CD J D= Dilution Factor (NONE) I Ino GRAVIMETIC FACTORS For the Trip Blank Analytical Value: I AV= Air Volume Sampled AR= (B X BSV ) - (RAB X RABSV) I I AR=Analytical Result AV I IA RR=Analytical Reportable Result in mg/m’ (rounded off to 3-sigma)

A (mg/L) SSV (mL) A X SSV = ASSV B (mg/L) BSV(mL)i B X BSV = BBSV ASSV -BSSV = AR AV Liters AR/AV ANALYTE ARR mg/m’ 0.111 100 11.1 0.223 100 22.3 -11.2 30 -0.3733333 Aluminum- Al <0.01 0?052 100 5.2 0jb24 100 2.4 2.8 30 0.0933333 Antimony-Sb 0.09 0?036 WO, 3.6 0.‘003 100 0.3 3.3 30 0.11 Arsenic-As 0.11 0?0'03 100 0.3 O.'4*62 100 40.2 -39.9 30 -1.33 Barium-Ba <0.01 0?001 100 0.1 o.boT 100 0.1 0 30 0 Beryllium-Be <0.01 'orooi wa 0.1 ■■■■-o.o6Y 100 -0.1 0.2 30 0.0066667 Cadmium-Cd <0.01 0?302 100 30.2 o.'sie 100 31.6 -1.4 30 -0.0466667 Calcium-Ca <0.01 O?6O2 100 0.2 0.00’4’ 100 0.4 -0.2 30 -0.0066667 Chromium-Cr <0.01 O?6b'6 100 0.6 100 0.2 0.4 30 0.0133333 Copper-Cu 0.01 O?646 100 4.6 0.139 100 13.9 -9.3 30 -0.31 Iron-Fe <0.01 ■""■■6?6oi 100 -0.1 100 -0.4 0.3 30 0.01 Lead-Pb 0.01 0?054 100 5.4 0.061 100 6.1 -0.7 30 -0.0233333 Magnesium-Mg <0.01 0?02‘2 100 2,2 0.'02’3' 100 2.3 -0.1 30 -0.0033333 Manganese-Mn <0.01 o 100 100 30 Mercury-Hg <0.01 H 0.003 100 0.3 0.003 100 0.3 0 30 0 Nickel-NI <0.01 l"^ 0?i26 ■0.583 KJ 100 12.6 100 58.3 -45.7 30 -1.5233333 Potassium-K <0.01 (—1 0?052 100 5.2 -0.008 100 -0.8 6 30 0.2 Selenium-Se 0.2 S o 0?001 100 0.1 0.001 100 0.1 0 30 0 Silver-Ag <0.01 o o ’17579 100 157.9 ■2.626 100 262.6 -104.7| 30 -3.49 Sodium-Na <0.01 Io o ■6?do4 100 0.4 100 0 0.4 30 0.0133333 Thallium-TI 0.01 KJ CO aoTs 100 1.8 'Q227 100 22.7 -20.9 30 -0.6966667 Zinc-Zn <0.01 CO Cn LAB ID #01110052-003 co co NYCDEP - CENTRAL PK NO & LENOX-NYC /K. / urn 4 (“11 CTO /K i\/O(“*r“n» 1 1 a “7t 4 a -t.< 4 •< n