NYC-WTC_000220514

NYC 9/11 Public Portal Document

PEDNEAULT ASSOCIATES, INC. ■M NYCDEP - WTC 631-467-8477 5-BORO SAMPLING METALS IN AIR jCALCULATlON FOR OSHA 1D121Z125G~ METALS IN AIR VIA CASSETTE FILTER (37MM MILLIPORE) & MOBILE VACUUM PUMPS jA» Concentration of Analyte in sample solution (pg/ml) <or (mg/L) 1- I

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 r Blank Sample Volume AV I ,RAB= Reagent Blink Coriccntratiion (p.g/ml) or (mg/L) !rABSV= Reagent Blank Sample Volume ■f I 5d= Dilution Factor (NONE) I Ino GRAVIMETIC FACTORS For the Trip Blank Analytical Value: AR= (B X BSV) - (RAB X RABSV) I IAVs Air Volume Sampled IAR=AnaIytical Result AV I lARR^Analytical Rcj>ort^le_R_csult_in m^/m’ (roun^^fljm ^sigmaT ^

SS\?Wl) AxSSVT^ASSV MsV(mt) B’XBSV?^BSy (ssv^ssvSar AVLItefs Mr/A^M ^Oanalyte> 0.076 100 7.6 0.068 100 ^jB 0.8 30 0.0266667 Aluminum- Al 0.03 ‘"■'OJO™ 100 10.2 100 41,9 -31.7 30 -1.0566667 Antimony-Sb <0.01 ""0’02“ 100 2.4 100 its -10.4 30 -0.3466667 Arsenic-As <0.01 ■■"O.OO2"" 100 0.2 0.002 100 02 0 30 0 Barium-Ba <0.01 “ooi”" 100 0.1 0.003 100 "73 ________ 2O£ 30 -0.0066667 Beryllium-Be <0.01 ■■■■o.ooT"‘ 100 0.1 b.do's 100 -0.4 30 -0.0133333 Cadmium-Cd <0.01 ■■"oTe?"” '0.3'13 '““o’oT ""o?62"" 100 100 100 67 1 2 b.dib' b.d47 100 100 100 31

417 i 35.7 -0.6 -2.7 30 30 30 1.19 Calcium-Ca -0.02 Ctiromium-Cr -0.09 Copper-Cu 1.19 <0.01 <0.01 ■■■■o'o62"‘ b.2‘91' 100 6.2 100 -22.9 30 -0.7633333 Iron-Fe <0.01 '“‘0.007”“ 100 0.7 b"d44 100 4;4 -3.7 30 -0.1233333 Lead-Pb <0.01 "“0’053"" 100 5.3 b.dZT 100 4.1 1.2 30 0.04 Magnesium-Mg 0.04 ""0.071 100 7.1 o7o9 100 9 -1.9 30 -0.0633333 Manganese-Mn <0.01 o 100 100 30 Mercury-Hg <0.01 H 0.003 100 0.3 0.002 100 0.2 0.1 30 0.0033333 Nickel-NI <0.01 'd.T5i' 100 15.1 ■"O.'2‘72' 100 27.2 -12.1 30 -0.4033333 Potassium-K <0.01 I—i s '0?04' 100 4 ""0?i4 100 14 -10 30 -0.3333333 Selenium-Se <0.01 o o'-bbs' 100 0.3 “006 100 0.6 -0.3 30 -0.01 Silver-Ag <0.01 o o ■L737' 100 173-.7 ““1384 100 188.4 -14.7 30 -0.49 Sodium-Na <0.01 Io ‘-'67002 ‘"-b“0‘04 <0.01 100 -0.2 100 -0.4 0.2 30 0.0066667 Thallium-TI o ■‘6704" 100 4 ■"o528 100 2.8 1.2 30 0.04 Zinc-Zn 0.04 CO CO LAB ID #01100592-004 LO

CR NYCDEP - BERRY & NORTH BROOKLYN r-/,IFM Fil F.'^/NYCr)FP-HA7r4AT/mniinnSQ? vic

NYC-WTC_000220521