NYC-WTC_000210844

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

631-467-8477 5-BORO SAMPLING - o METALS IN AIR co

c o o ro I CALCULATION FOR OSHA ID121/125G-METALS IN AJR VIA CASSETTE FILTER (37MM MILLIPORE) & 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 (mg/L) ■D o O 00 Ji 'SSV= Sample Solution Volume ASSV^ Analyte concentration x Sample Solution Volume AR= (A X SSV) - (B X BSV) I 3. co 91 ■ BSV=Blank Sample Volume Blank Sample Volume AV I O o !rAB= Reagent Bitink Concentration (pg/ml) or (mg/L) o c !rABSV= Reagent Blank Sample Volume I 3 CD O Id= Dilution Factor (NONE) I Ino gravimetic factors For the Trip Blank Analytical Value: IAV= Air VolumeSamplcd s ^ AR= (B X BSV) - (RAB X RABSV) I |AR=Analytical Result AV I ■ IARR-Analytical Reportable Rcsnlt tn m^/m’ (rdtiniied off to 3-sigma) I

SS’ I lom OANAmo 0.083 WOj 8.3 0.064 100 6.4 1.9 30 0.0633333 Aluminum- Al 0.06 0?0'7'8 100 7.8 ■d‘.O23"' 100 2.3 5.5 30 0.1833333 Antimony-Sb 0.18 0?0-2i W 2.1 ■-O?6O8“ 100 -0.8 2.9 30 0.0966667 Arsenic-As 0.1 -6?o’o3 100 0.3 ■‘0'002" 100 0.2 0.1 30 0.0033333 Barium-Ba <0.01 ■.0?d08 100 -0.8 ■-6?OO9" 100 -0.9 0.1 30 0.0033333 Beryllium-Be <0.01 :o'.o2 100 -2 ‘-0?02r’ 100 -2.1 0.1 30 0.0033333 Cadmium-Cd <0.01 O?433 100 43'.3 ■0.402" 100 40.2 3.1 30 0.1033333 Calcium-Ca 0.1 o?6T7 100 1.7 o'ws"' 100 1.3 0.4 30 0.0133333 Chromium-Cr 0.01 ‘-orose 100 -5.6 ■-0?0'56” 100 -5.6 0 30 0 Copper-Cu <0.01 0:622 100 2.2 T49T“ 100 249.1 -246.9 30 -8.23 Iron-Fe <0.01 ’-Oro-O's 100 -0.8 ■-6?6()9" 100 -0.9 0.1 30 0.0033333 Lead-Pb <0.01 -oro'es 100 6.3 ’o.oes" 100 6.8 -0.5 30 -0.0166667 Magnesium-Mg <0.01 ’oro's-s 100 3.8 ■■o'.‘o'3'7'" 100 3.7 0.1 30 0.0033333 Manganese-Mn <0.01 o 100 100 30 Mercury-Hg <0.01 H -0.001 100 -0.1 0.001 100 0.1 -0.2 30 -0.0066667 Nickel-NI <0.01 K I "6:989 100 98.9 "‘0.695- 100 69.5 29.4 30 0.98 Potassium-K 0.98 to s O 2o^ 100 100 5.1 o'ocT" -9 ""-■o'.'o'9" 100 100 0.1 -9 5 0 30 0.1666667 Selenium-Se 30 0 Silver-Ag 0.17 <0.01 o o "2:384 100 238.4 ■"“iTsiy 100 181.7 56.7 30 1.89 Sodium-Na 1.89 I ■-■6:6-o‘4 100 -0.4 "■-‘oroTi" 100 -1.1 0.7 30 0.0233333 Thallium-TI 0.02 o o to co "oro'o-'z 100 0.7 *"o.‘o*i8" 100 1.8 -1.1 30 -0.0366667 Zinc-Zn <0.01 cn LAB ID #01100273-003 Ui cn co NYCDEP - CENTRAL PK NO & LENOX-NYC / ICK CH CO ” /<'ncn nnn-^o ,,i