NYC-WTC_000232802

NYC 9/11 Public Portal Document

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R02090951 R02090951 R02090951 Client ID: 07A 08A 09A Lab No.: 060273 02 060274 02 060275 02 Date Sampled: 12-Sep-2002 12-Sep-2002 12-Sep-2002 Component MDL Units

Total Tetrachlorodibenzofurans pg <1.7 <1.7 4.8 Total PenLachlorodibenzofurans <1.6 <1.7 <9.5 Total Hexachlorodibenzofurans <1.1 1.8 <4.1 Total Heptaehlorodibenzofurans <3.8 <6.3 Octachlorodibenzofuran 4.2 Total Tetrachlorodibenzo-p-dioxins <1.3 <2.0 lo" Total Pentachlorodibenzo-p-dioxins <2.9 <2.6 <5.9 Total Hexachlorodibenzo-p-dioxins <3.7 1.9 <16 Total Heptachlorodibenzo-p-dioxins <2.0 4.2 7.7 Octachlorodibenzo-p-dioxin 8.6 12 46 Internal Recoveries % 2,3,7,8-T4CDF-13C12 75 71 81 2,3,7,8-T4CDD-13C12 92 83 76 1,2,3,7.8-P5CDF-13C12 83 70 74 1,2,3.7,8-P5CDD-13C12 91 79 79 1,2,3,4.7,8-H6CDF-13C12 96 90 79 1,2,3,6.7,8-H6CDD-13C12 95 94 82 1,2,3,4.6,7,8-H7CDF-13C12 97 92 77 1,2,3,4.6,7,8-H7CDD-13C12 97 97 78 OCDD-13C12 112 114 68

2,3,7,8-C14-Dibenzo&ran (DBS) pg <1.7 <1.7 <4.8 2,3,7,8-C14-Dibenzo-p-dioxin <1.3 <2.0 <5.9 1,2,3,7.8-C15-Dibenzofuran <1.5 <1.6 <9.2 2,3,4,7i8-C15-Dibenzofuran <1.6 <1.8 <9.8 l,2,3,7.8-C15-Dibenzo-p-dioxin <2.9 <2.6 <5.9 1,2,3,4.7,8-C16-Dibe.nzofuran <0.97 1.6 <4.1 1,2,3,6,7,8-C16-Dibenzofuran <0.99 <0.86 <3.4 2,3,4,6,7,8-C16-Dibenzofuran <1.2 <1.0 <4.4 1,2,3,7,8,9-C16-Dibenzofuran <1.4 <1.2 <4.8 l,2,3,4,7,8-C16-Dibenzo-j>dioxin <1.6 <1.4 <20 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <1.6 <1.4 <14 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <1.6 <1.3 <15 1,2,3,4,6,7,8-C17-Dibenzofuran <3.2 <3.3 <5.5 1,2,3,4.7,8,9-C17-Dibenzofuran <4.5 <4.6 <7.4 1,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 4.2 7.7 1,2,3,4,6,7,8,9-C18-Dibenzofuran 4.2 1,2,3,4.6,7,8,9-C18-Dibenzo-p-di oxin 8.6 12 I fl

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

TEQ based on Nato Factors pg 2.4 2.8 11.2

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CITY_21MC100_009479981

NYC-WTC_000232808