NYC-WTC_000210754

NYC 9/11 Public Portal Document

PEDNEAULT ASSOCIATES, INC. NYCDEP - WTC 631-467-8477 5-BORO SAMPLING METALS IN AIR I CALCULATION FOR OSHAID121/125G- METALS IN AIR VIA CASSETTE FILTER (37MM MILLIPORE) & MOBILE VACUUM PUMPS | JAx Concentration of Analyte in sample solution (pgZml) or (mg/L) 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 x Blank Sample Volume AV I !rAB>^ Reagent Blank Concentration (|Xg/ml) or (mg/L) ! RABSV" Reagent Blank Sample Volume I Jd= Dilution Factor (NONE) I Ino gravimetic factors For the Trip Blank Analytical Value: AR= (B X BSV) - (RAB X RABSV) II IAV= Air Volume Sampled I

| AR=AnaIytical Result AV I

^NALYTEB 0.11 100 11 0.086 100 8.6 2.4 30 0.08 Aluminum-Al 0.08 100 12 ■0.058 100 5.8 6.2 30 0.2066667 Antimony-Sb 0.21 ""b'bib"" 100 1.3 -0.005 100 -0.5 1.8 30 0.06 Arsenic-As 0.06 "“b.b63’" 100 0.3 ■d“oo3 100 0.3 0 30 0 6arium-Ba <0.01 ""b.boT"' 100 0.1 0 100 0 0.1 30 0.0033333 Beryllium-Be <0.01 ■"■b.bb2*" 100 0.2 ■o.boT 100 0.1 0.1 30 0.0033333 Cadmium-Cd <0.01 "■■b.573"' 100 57.3 ■b.422 100 42.2 15.1 30 0.5033333 Calcium-Ca 0.5 ■■■■oToby* 100 0.7 -0007 100 0.7 0 30 0 Chromium-Cr <0.01 ■""ob'2'"" 100 2 ■oboe 100 0.9 1.1 30 0.0366667 Copper-Cu 0.04 “""0’049”" 100 'b.ioZ 100 10.4 -5.5 30 -0.1833333 Iron-Fe <0.01 0.007 100 0.7 ‘b.bbe 100 0.6 0.1 30 0.0033333 Lead-Pb <0.01 """0"."0"94"’" 100 9.4 'b'b^ 100 7.7 1.7 30 0.0566667 Magnesium-Mg 0.06 6.038 100 3.8 *0.039 100 3.9 -0.1 30 -0.0033333 Manganese-Mn <0.01 o 100 100 30 Mercury-Hg <0.01 H ! 0 100 0 -0.001 100 -0.1 0.1 30 0.0033333 Nickel-NI <0.01 !""""b^i4~" 100 __ 14 *0.148 100 14.8 -0.8 30 -0.0266667 Potassium-K <0.01 100 2.8 *0766? 100 0.1 2.7 30 0.09 Selenium-Se 0.09 I I—i

100 0.2j 'adoT 100 0.1 0.1 30 0.0033333 Silver-Ag <0.01 o i 2.175 100 217.5 *‘*2?i*5’ 100 215 2.5 30 0.0833333 Sodium-Na 0.08 o Io !""""-bbi’i“' 100 -1.1 -bb'iT 100 -1.1 0 30 0 Thallium-TI <0.01 o I 6’018’" 100 1.8 'abie 100 1.6 0.2 30 0.0066667 Zinc-Zn <0.01 CO CR PEDTd #01100027-002 O CO

NYCDEP - 138TH & 3RD AVENUE BRONX cii pq/Mvrnco wu

NYC-WTC_000210757