NYC-WTC_000232802

NYC 9/11 Public Portal Document

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R02090951 R02090951 R02090951 Client ID: lOA llA 12A Lab No.: 060276 02 060277 02 060278 02 Date Sampled: 12-Sep-2002 12-Sep-2002 12-Sep-2002 Component MDL Units

Total Tetrachlorodibenzofurans pg 970 180 170 Total PenLachlorodibenzofurans 450 110 78 Total Hexachlorodibenzofurans 250 45 45 Total Heptaehlorodibenzofurans 35 11 11 Octachlorodibenzofuran 58 12 16 Total Tetrachlorodibenzo-p-dioxins 1700 230 170 Total Pentachlorodibenzo-p-dioxins 290 130 56 Total Hexachlorodibenzo-p-dioxins 260 14 17 Total Heptachlorodibenzo-p-dioxins 190 90 80 Octachlorodibenzo-p-dioxin 730 350 320 Internal Recoveries % 2,3,7,8-T4CDF-13C12 93 87 92 2,3,7,8-T4CDD-13C12 80 80 85 1,2,3,7.8-P5CDF-13C12 88 82 84 1,2,3.7,8-P5CDD-13C12 95 88 87 1,2,3,4.7,8-H6CDF-13C12 95 90 85 1,2,3,6.7,8-H6CDD-13C12 93 93 88 1,2,3,4,6,7,8-H7CDF-13C12 85 86 80 1,2,3,4.6,7,8-H7CDD-13C12 88 91 85 OCDD-13C12 79 86 77

2,3,7,8-C14-Dibenzo&ran (DB5) pg 140 28 21 2,3,7,8-C14-Dibenzo-p-dioxin <10 <3.4 <3.3 1,2,3,7,8-C15-Dibenzofuran <12 <2.2 <6.1 2,3,4,7,8-C15-Dibenzofuran 31 13 8.0 l,2,3,7,8-C15-Dibenzo-p-dioxin <4.6 <3.5 <3.9 1,2,3,4.7,8-C16-Dibe.nzofuran 50 15 11 1,2,3,6,7,8-C16-Dibenzofuran 19 <7.0 2,3,4,6,7,8-C16-Dibenzofuran 22 <7.2 7.8 1,2,3,7,8,9-C16-Dibenzofuran <8.0 <3.7 <4.3 l,2,3,4,7,8-C16-Dibenzo-j>dioxin <3.5 <4.0 <6.2 1,2,3,6,7,8-C16-Dibenzo-p-dioxin 9.7 4.4 <4.4 l,2,3,7,8,9-C16-Dibenzo-p-dioxin 10 <5.3 <4.8 1,2,3,4,6,7,8-C17-Dibenzofuran <68 <24 <23 1,2,3,4.7,8,9-C17-Dibenzofuran 19 <8.5 1,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 100 47 40 1,2,3,4,6,7,8,9-C18-Dibenzofuran 58 12 16 1,2,3,4.6,7,8,9-C18-Dibenzo-p-di oxin 730 350 320

2,3,7,8-TCDF (DB225) pg 37 <9.8 <6.7 Internal Recoveries % 2,3,7,8-TCDF-13C12 87 86 93

TEQ based on Nato Factors pg 44.6 13.9 11.1

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CITY_21MC100_009479982

NYC-WTC_000232809