NYC-WTC_000220498

NYC 9/11 Public Portal Document

PEDNEAULT ASSOCIATES, INC. NYCDEP - WTC 631-467-8477 5-BORO SAMPLING METALS IN AIR ' I CALCULATION FOR OSHA1D121/125G- METALS IN AIR VIA CASSETTE FILTER (37MM MILLIPORE) & MOBILE VACUUM PUMPS |. jA= Concentration of Analyte In sample solution (pg/ml) or (mg/L) I j 8=Concentration of Blank in sample solution (pg/ml) or (mg/L) •SSV= Sample . . Solution __ . Volume ASSV« Analyte concentration x Sample Solution Volume AR= (A X SSV) - (B X BSV) I .BSV=niank Sample Volume BBSV«BIank concentration x Blank Sample Volume AV I !rAB>x Reagent Blank Concentration ! RABSV" Reagent Blank Sample Volume s 1 Jd= Dilution Factor (NONE) I Ino gravimetig factors For the Trip Blank Analytical Value: I IAV= Air Volume Sampled AR= (B X BSV) - (RAB X RABSV) IAR=Analytical Result AV I I ARR=Analytical Reportable Result in m^/ini (rounded olF to 3-sigma)

A7mg/L) ssy: SV (mt.) BVBSV^:6BSV ASgVyBSSV = AR AVLttefs WANALYTE> . .ARR mg/m’/'Y 0.086 100 8.6 0.073 100 7.3 1.3 30 0.0433333 Aluminum- Al 0.04 ""b.b4i 100 4.1 ”“b.biT 100 1.1 3 30 0.1 Antimony-Sb 0.1 ""b.b22"“ 100 2.2 —"oboa 100 0.2 2 30 0.0666667 Arsenic-As 0.07 "“0.064”“ 100 0.4 ■■“b’.bo2 100 "bb 0.2 30 0.0066667 Barium-Ba <0.01 I ""6'.bbi“" 100 0.1 100 0 0.1 30 0.0033333 Beryllium-Be <0.01 ""b'bbi"" 100 0.1 -“oboT 100 0.1 0 30 0 Cadmium-Cd <0.01 0.499“' 100 49.9 "“b'.273 100 27.3 22.6 30 0.7533333 Calcium-Ca 0.75 ""bbbs”" 100 0.8 "“bbbs 100 0.5 0.3 30 0.01 Chromium-Cr 0.01 ““0b24” 100 2.4 ““0.009 100 0.9 1.5 30 0.05 Copper-Cu 0.05 bbbb'" 100 6.6 “"b’.b36 100 3.6 3 30 0.1 Iron-Fe 0.1 ""bbii"" 100 1.1 ““b’bb? 100 0.7 0.4 30 0.0133333 Lead-Pb 0.01 ""bbbb"' 100 9.8 "”b”d57 100 5.7 4.1 30 0.1366667 Magnesium-Mg 0.14 I bbob'” 100 0.8 "“bbbs 100 0.5 0.3 30 0.01 Manganese-Mn 0.01 o 100 100 30 Mercury-Hg <0.01 H 0.004 100 0.4 ■■-d’ooT 100 -0.1 0.5 30 0.0166667 Nickel-NI 0.02 “"0084" 100 8.4 “oSgT wo 9.1 -0.7 30 -0.0233333 Potassium-K <0.01 I—i s oib" “....... 100 1.9 "d'boT 100 -0.1 2 30 0.0666667 Selenium-Se 0.07 o 100 0 "d'boa 100 -0.2 0.2 30 0.0066667 Silver-Ag <0.01 ■■■■i".439“ o o 100 143.9 T4i7 100 141.7 2.2 30 0.0733333 Sodium-Na 0.07 I o ■■"-bboi"’ 100 -0.1 "bboi 100 -0.1 0 30 0 Thallium-TI <0.01 o ■■■"ooe'” ”0.031 100 6 100 3.1 2.9 30 0.0966667 Zinc-Zn 0.1 CO CO LAB ID #01100376-002

CO NYCDEP - 138TH & 3RD AVENUE BRONX

NYC-WTC_000220501