NYC-WTC_000232802

NYC 9/11 Public Portal Document

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R02090951 R02090951 R02090951 Client ID: 13A 14A 15A Lab No.: 060279 02 060280 02 060281 02 Date Sampled: 12-Sep-2002 12-Sep-2002 12-Sep-2002 Component MDL Units

Total Tetrachlorodibenzofurans pg <2.0 140 81 Total PenLachlorodibenzofurans 95 64 Total Hexachlorodibenzofurans <2.6 71 32 Total Heptaehlorodibenzofurans <3.4 <27 16 Octachlorodibenzofuran <5.1 22 18 Total Tetrachlorodibenzo-p-dioxins 6.6 190 130 Total Pentachlorodibenzo-p-dioxins <4.6 160 80 Total Hexachlorodibenzo-p-dioxins <13 120 47 Total Heptachlorodibenzo-p-dioxins 5.0 77 58 Octachlorodibenzo-p-dioxin 13 240 200 Internal Recoveries % 2,3,7,8-T4CDF-13C12 86 94 78 2,3,7,8-T4CDD-13C12 81 88 86 1,2,3,7.8-P5CDF-13C12 79 85 77 1,2,3.7,8-P5CDD-13C12 85 93 80 1,2,3,4.7,8-H6CDF-13C12 86 88 81 1,2,3,6.7,8-H6CDD-13C12 87 91 85 1,2,3,4.6,7,8-H7CDF-13C12 78 82 73 1,2,3,4.6,7,8-H7CDD-13C12 87 90 82 OCDD-13C12 77 80 88

2,3,7,8-C14-Dibenzo&ran (DBS) pg <2.0 25 <17 2,3,7,8-C14-Dibenzo-p-dioxin <3.2 <2.7 <2.4 1,2,3,7.8-C15-Dibenzofuran <2.6 <5.7 6.3 2,3,4,7,8-C15-Dibenzofuran <2.8 <13 6.5 l,2,3,7.8-C15-Dibenzo-p-dioxin <4.6 <2.3 <2.3 1,2,3,4.7,8-C16-Dibe.nzofuran 17 9.4 1,2,3,6,7,8-C16-Dibenzofuran <2.1 7.8 <4.1 2,3,4,6,7,8-C16-Dibenzofuran <2.8 6.7 <3.5 1,2,3,7,8,9-C16-Dibenzofuran <3.0 <5.8 <3.7 l,2,3,4,7,8-C16-Dibenzo-j>dioxin <16 <6.3 <3.2 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <12 <4.5 <2.9 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <13 <5.6 <2.6 1,2,3,4,6,7,8-C17-Dibenzofuran <2.9 <24 <21 1,2,3,4.7,8,9-C17-Dibenzofuran <3.9 <32 <5.4 1,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 5.0 42 32 1,2,3,4,6,7,8,9-C18-Dibenzofuran <5.1 22 18 1,2,3,4.6,7,8,9-C18-Dibenzo-p-di oxin 13 240 200

2,3,7,8-TCDF (DB225) pg <8.9 8.1 <4.6 Internal Recoveries % 2,3,7,8-TCDF-13C12 94 94 94

TEQ based on Nato Factors pg 6.3 10.9 8.2

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CITY_21MC100_009479983

NYC-WTC_000232810