NYC-WTC_000232785

NYC 9/11 Public Portal Document

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3rd 3rd 3rd Client ID: Floor-01 Floor-02 Floor-03 Lab No.: 013657 03 013658 03 013659 03 Date Sampled: 29-Mar-2003 29-Mar-2003 29-Mar-2003 Component MDL Units

Total Tetrachlorodibenzofurans pg <2.1 <2.6 <1.8 Total PenLachlorodibenzofurans <2.9 <4.3 <2.1 Total Hexachlorodibenzofurans <1.3 <1.7 <1.0 Total Heptaehlorodibenzofurans <3.6 <4.4 <3.2 Octachlorodibenzofuran 4.9 2.6 2.3 Total Tetrachlorodibenzo-p-dioxins <2.5 5.8 <1.8 Total Pentachlorodibenzo-p-dioxins <2.0 <8.6 Total Hexachlorodibenzo-p-dioxins <2.1 <11 <3.7 Total Heptachlorodibenzo-p-dioxins 5.3 5.1 4.5 Octachlorodibenzo-p-dioxin 34 <17 8.6 Internal Recoveries % 2,3,7,8-T4CDF-13C12 76 69 75 2,3,7,8-T4CDD-13C12 85 77 88 1,2,3,7.8-P5CDF-13C12 81 76 87 1,2,3,7,8-P5CDD-13C12 85 81 92 1,2,3,4.7,8-H6CDF-13C12 99 100 102 1,2,3,6.7,8-H6CDD-13C12 87 93 97 1,2,3,4,6,7,8-H7CDF-13C12 92 97 103 1,2,3,4.6,7,8-H7CDD-13C12 84 94 104 OCDD-13C12 66 77 90

2,3,7,8-C14-Dibenzo&ran (DB5) pg <2.1 <2.6 <1.8 2,3,7,8-CI4-Dibenzo-p-dioxin <2.5 <3.9 <1.8 1,2,3,7,8-C15-Dibenzofuran <2.9 <4.2 <2.1 2,3,4,7,8-C15-Dibenzofuran <3.0 <4.3 <2.2 l,2,3,7,8-C15-Dibenzo-p-dioxin <2.0 <3.1 <1.5 1,2,3,4.7,8-C16-Dibe.nzofuran <1.2 <1.5 1.2 1,2,3,6,7,8-C16-Dibenzofuran <1.2 <1.5 1.00 2,3,4,6,7,8-C16-Dibenzofuran <1.4 <1.8 <1.1 1,2,3,7,8,9-C16-Dibenzofuran <1.5 <1.9 <1.2 l,2,3,4,7,8-C16-Dibenzo-j>dioxin <2.1 <2.2 <1.4 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <2.1 <2.2 <1.4 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <2.0 <2.1 1,2,3,4,6,7,8-C17-Dibenzofuran <3.2 <3.9 <2.9 1,2,3,4.7,8,9-C17-Dibenzofuran <1.7 <1.6 <1.5 1,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 5.3 5.1 2.8 1,2,3,4,6,7,8,9-C18-Dibenzofuran 4.9 2.6 2.3 1,2,3,4.6,7,8,9-C18-Dibenzo-p-di oxin 34 <17 8.6

2,3,7,8-TCDF (DB225) pg Internal Recoveries % 2,3,7,8-TCDF-13C12

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CITY_21MC100_009480065

NYC-WTC_000232790