NYC-WTC_000234498

NYC 9/11 Public Portal Document

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R02090951 R02090951 R02090951 R02090951 R02090951 R02090951 Client ID: 04A 05A 06A 07A OSA 09A Lab No.: 060270 02 060271 02 060272 02 060273 02 060274 02 060275 02 late Sampled: 12-Sep-2002 12-Sep-2002 12-Sep-2002 12-Sep-2002 12-Sep-2002 12-Sep-2002 Component MDL Units

Total Tetrachlorodibenzofurai pg <1.9 <2.0 5.8 <1.7 <1.7 4.8 Total Pentachlorodibenzofijra <1.9 <3.4 <1.5 <1.6 <1.7 <9.5 Total Hexachlorodibenzofurai <1.2 2.5 <1.1 1.8 <4.1 Total Heptachlorodibenzofura <1.9 <1.8 11 <2.1 <3.8 <6.3 Octachlorodibenzofuran <2.7 9.6 4.2 <2.5 <5.3 Total Tetrachlorodibenzo-p-di <3.7 <3.4 20 <2.0 10 Total Pentachlorodibenzo-p-d <3.4 <5.8 <3.4 <2.9 <2.6 <5.9 Total Hexachlorodibenzo-p-di <8.0 <11 1.7 <3.7 1.9 <16 Total Heptachlorodibenzo-p-d 7.0 9.8 <2.0 4.2 7.7 Octachlorodibenzo-p-dioxin 16 13 68 8.6 12 46 Internal Recoveries % 2,3,7,8-T4CDF-13C12 65 81 72 75 71 81 2,3,7,8-T4CDD-13C12 73 85 85 92 83 76 1,2,3,7.8-P5CDF-13C12 60 86 67 83 70 74 1,2,3,7.8-P5CDD-13C12 67 96 76 91 79 79 1,2,3.4,7,8-H6CDF-13C12 79 96 86 96 90 79 1,2,3,6.7,8-H6CDD-13C12 77 94 90 95 94 82 1,2,3,4.6,7,8-H7CDF-13C12 85 97 92 97 92 77 1,2,3.4,6,7,8-H7CDD-13C12 82 91 93 97 97 78 OCDD-13C12 100 115 104 112 114 68

2,3,7,8-C14-Dibenzofuran (DI pg <1.9 <2.0 4.0 <1.7 <1.7 <4.8 2,3,7,8-C14-Dibenzo-p-dioxin <2.7 <2.0 <5.9 1,2,3,7,8-C15-Dibenzofuran <1.8 <3.2 <1.5 <1.6 <9.2 2,3,4,7,8-C15-Dibenzofuran <1.9 <3.5 <1.6 <1.6 <1.8 <9.8 l,2,3,7,8-C15-Dibenzo-p-diox <3.4 <3.0 <2.8 <2.9 <2.6 <5.9 1.2.3.4.7.84 ■|6-l)i Ix-nzoluian <1.1 <0.92 <0.97 1.6 <4.1 1,2,3,6.7,8-C16-Dibenzofuran <1.4 <1.1 <0.94 <0.99 <0.86 <3.4 2,3,4,6.7,8-C16-Dibenzofuran <1.6 <1.1 <1.2 <1.0 <4.4 1,2,3,7,8,9-C16-Dibenzofuran <2.0 <1.6 <1.4 <1.4 <1.2 <4.8 1,2,3,4.7,8-C16-Dibenzo-i^di, <3.2 <3.3 <1.2 <1.6 <1.4 <20 1,2,3,6.7,8-C16-Dibenzo-i>dii <3.1 <3.3 <1.2 <1.6 <1.4 <14 1,2,3,7,8,9-C16-Dibeiizoi>di< <3.1 <3.2 <1.2 <1.6 <1.3 <15 1,2,3,4.6,7,8-C17-Dibenzofur: <1.6 <1.5 5.0 <3.2 <3.3 <5.5 1,2,3,4.7,8,9-C17-Dibenzofur^ <2.3 <2.2 <4.5 <4.6 <7.4 l,2,3,4,6,7,8-C17-Dibenzo-p-i <3.3 4.7 9.8 <2.7 4.2 7.7 1,2,3,4.6,7,8,9-C18-Dibenzofi <2.7 <2.2 9.6 4.2 <2.5 <5.3 1,2,3,4.6,7,8,9-C18-Dibenzo-] 16 13 68 8.6 12 46

2,3,7,8-TCDF (DB225) pg <5.7 <3.1 <3.7 <4.8 Internal Recoveries % 2,3,7,8-TCDF-13C12 96 92 92 81

I'EQ based on Nato bactors pg 0.02 0.06 0.63 0.01 0.21 0.12

TEQ's converted into appropriate units iiy/iir 0.001 0.003 0.030 0.000 0.010 0.006 (a 209 cm’ area was wiped)

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CITY_21MC100_0 03221031

NYC-WTC_000234500