NYC-WTC_000210800

z PEDNEAULT ASSOCIATES, INC. .r NYCDEP - WTC z ■<

o 631-467-8477 5-BORO SAMPLING o co METALS IN AIR § s o o ro I CALCULATION FOR OSHAIP121/125G-^ METALS IN AIR VIA CASSETTE FILTER (37MM MILLIPORE) fie MOBILE VACUUM PUMPS jA=* Concentration of Analyte in sample solution (pg/ml) or (mg/L) I ■D c CT o' jB=Concentration of Blank in sample solution (pg/ml) or ■D o O 00 o ■SSV- Sample Solution Volume ASSV- Analyte concentration X Sample Sol ution Volume AR= (A X SSV) - (B X BSV) I 3. 91 ■BSV-Blank Sample Volume BBSV-Blank concentration X Blank Sample Volume AV I O o !rAB= Reagent Blank Concentration (pg/ml) dr (mg/L) o c ! RABSV- Reagent Blank Sample Volume I 3 CD Jd- DUution Factor (NONE) I Ino gravimetic factors For the Trip Blank Analytical Value: IAV® Air Volume Sampled AR= (B X BSV) - (RAB X RABSV) I IAR=Analytical Result irf AV I IARR=Analytical Rcjjortable Result in m^/m^ (rounded off to 3-sigma)

A(iTrt|/L). ssvTmi^ A X ssW^ jElmg/LT W^(mL) B x BSV = BBS^| ASSV -BSSV = AR| AV Liters 7^AR/AV 3; -i ANALYTE ARRmg/m’nl^ 0.076 100 7.6 0.068 100 0.8 30 0.0266667 Aluminum- Al 0.03 ■"■6".236""' 100 23.6 0.4i9 100 41.9 -18.3 30 -0.61 Antimony-Sb <0.01 ■■■■6".O74""' 100 7.4 0.128 100 12.8 -5.4 30 -0.18 Arsenic-As <0.01 ""67003"" 100 0.3 0.062 100 0.1 30 0.0033333 Barium-Ba <0.01 ■■"67o"6i"" 100 0.1 0.003 100 "o^ -0.2 30 -0.0066667 Beryllium-Be <0.01 ■■"67664"" 100 0.4 0.005 100 0.5 -0.1 30 -0.0033333 Cadmium-Cd <0.01 ■■"o'.'e’ss"" 100 65.8 0'3i3 100 34.5 30 1.15 Calcium-Ca 1.15 ■■"6'6"i5""' 100 1.5 0.016 100 -0.1 30 -0.0033333 Chromium-Cr <0.01 ""6‘.6'35"" 100 3.5 0.047 100 4.7 -1.2 30 -0.04 Copper-Cu <0.01 ■"67o"98"" 100 9.8 o7^i' 100 -19.3 30 -0.6433333 Iron-Fe <0.01 '■"6'.6"28"" 100 2.8 6'044 100 4.4 -1.6 30 -0.0533333 Lead-Pb <0.01 ■"6".6"58"" 100 5.8 oTmT 100 4.1 1.7 30 0.0566667 Magnesium-Mg 0.06 ■"67o"87"" 100 8.7 ■6?O9 100 9 -0.3 30 -0.01 Manganese-Mn <0.01 o 100 100 30 Mercury-Hg <0.01 H 0.001 100 0.1 0.002 100 0.2 -0.1 30 -0.0033333 Nickel-NI <0.01 '6'.219" 100 21.9 "■6'.272 100 27.2 -5.3 30 -0.1766667 Potassium-K <0.01 i ■6709i' 100 ■“"o?i4 S 9.1 100 14 30 -0.1633333 Selenium-Se <0.01 o '6'6’14 100 1.4 ""o'.'o'oe 100 0.6 0.8 30 0.0266667 Silver-Ag 0.03 o 'L85i“ "■T.88'4 o 100 185.1 100 188.4 -3.3 30 -0.11 Sodium-Na <0.01 I ’-67005 o 100 -0.5 ■‘"-67664 100 -0.4 -0.1 30 -0.0033333 Thallium-TI <0.01 o CO "6'6'39' 100 3.9 '""67628 100 2.8 1.1 30 0.0366667 Zinc-Zn 0.04 on "lABTd #01100592-001

NYCDEP-BROADWAY & 31 ST QUEENS