NYC-WTC_000210800

PLDNEAULI ASSOCIATES, INC. NYCDEP - WTC z z 631-467-8477 ■<

5-BORO SAMPLING o METALS IN AIR co

[CALCULATION FOR OSHAID121/125G-METALS IN AIR VIA CASSE'ITE FILTER (37MM MILLIPORE) & MOBILE VACUUM PUMPS ] '2 o jA» Concentration of Analyte in sample solution (pig/ml) or (mg/L) I ■a c CT o o' ro ■B=Concentration of Blank in sample solution (pg/mi) or (mg/L) ■D o O 00 jSSV" Sample Solution Volume ASSV>< Analyte concentration x Sample Solution Volume AR=; (A X SSV ) - (B X BSV) I 3. 91 •BSV=Blank Sample Volume BBSV=BIank concentration x Blank Sample Volume AV I O !rAB= Reagent Blank Concentration (pg/ml) or (mg/L) o o c ! RABSV" Reagent Blank Sample Volume I 3 CD [d-Dilution Factor (NONE) I Ino GRAVlMETIC FACTORS ■ thH For the Trip Blank Analytical Value: AR= (B X BSV) - (RAB X RABSV) I IAV= Air Volume Sampled ■

IAR=Analytical Result AV I lARR=Ansdytical Reportable Result in m^/m’ (rounded off to 3-sigma) I I vA(rna/t^ isvcfiiEI aScssvKassv iBJmW WW B x BSV x BBSy ASSV -BSSV = AR AvliWs yAR/Av; tz^NALYTE’•r;- S ARR mg/m’c 0.076 100 7.6 0.068 100 0.8 30 0.0266667 Aluminum-Al 0.03 ■■■■'aoy^ 100 7 0.419 100 41.9 -34.9 30 -1.1633333 Antimony-Sb <0.01 ! ■■■■6‘o6y 100 0.2 '■■67128 100 12.8 -12.6 30 -0.42 Arsenic-As <0.01 100 0.3 ■■■■67662 100 0.2 0.1 30 0.0033333 Barium-Ba <0.01 0 100 0 ■■■■67663 100 -0.3 30 -0.01 Beryllium-Be <0.01 ■■■■q.ooV 100 0.1 ■■■■67665 100 0.5 -0.4 30 -0.0133333 Cadmium-Cd <0.01 ■■■677Tf 100 71.1 ■■■6.31’3 100 31.3 39.8 30 1.3266667 Calcium-Ca 1.33 ■■■■Q.oog^^ 100 0.9 ■—67016 100 1.6 -0.7 30 -0.0233333 Chromium-Cr <0.01 ■■■■6‘625f ■■■■o'oeV 100 100 2.4 6.1 ■■■■67647 ■■■672^91 100 100 3z 2^ -2.3 -23 30 -0.0766667 Copper-Cu 30 -0.7666667 Iron-Fe <0.01 <0.01 ■■■■o.ooa" ■■■■o’oeg" 100 100 0.8 6.9 —6644 —6^41 100 100 35 4.1 -3.6 2.8 30 -0.12 Lead-Pb 30 0.0933333 Magnesium-Mg <0.01 0.09 o'ofy 100 7.2 ■6?69 100 9 -1.8 30 -0.06 Manganese-Mn <0.01 o 100 100 30 Mercury-Hg <0.01 H I 0.001 100 0.1 0.002 100 0.2 -0.1 30 -0.0033333 Nickel-NI <0.01 100 16.4 ■d‘.272 100 27.2 -10.8 30 -0.36 Potassium-K <0.01 i■■■■o7oo8■■■ 100 0.8 “0?i4 100 14 -13.2 30 -0.44 Selenium-Se <0.01 S o j 0.662 100 0.2 “d'boe 100 0.6 -0.4 30 -0.0133333 Silver-Ag <0.01 I—i o r L813 100 181.3 ■■<.884 100 188.4 -7.1 30 -0.2366667 Sodium-Na <0.01 o Io !■■■■6.66i■■■■ 100 0.1 -0.064 100 -0.4 0.5 30 0.0166667 Thallium-TI 0.02 o yo’oay 100 3.1 "0028 100 2.8 0.3 30 0.01 Zinc-Zn 0.01 CO CR LAB ID #01100592-006 CO O NYCDEP - BAY STR & VICTORY BLVD. SI ni pc;/^|voncp.^-l6■7^^AT/mn^ -innc^no vic