NYC-WTC_000232660

NYC 9/11 Public Portal Document

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3rd 3rd 3rd Client ID: Floor-07 Floor-08 Floor-09 R03030259- -OlA -02A -03A LabNo.: 009193 03 009194 03 009195 03 Date Sampled: 05-Mai--2003 05-Mai--2003 05-Mai--2003 Component MDI, Units

Total Tetrachlorodibenzofurans pg <2.4 <1.4 <2.2 Total Pentachlorodibenzofiirans <1.3 <1.7 <1.9 Total Hexachlorodibenzofurans <2.6 <1.5 <1.9 Total Heptachlorodibenzofurans <6.8 4.2 <3.1 Octachlorodibenzofuran 14 6.2 6.3 Total Tetrachlorodibenzo-p-dioxins 0 9 <1.6 <2.9 Total Pentachlorodibenzo-p-dioxins <6.0 <1.4 <1.9 Total Hexachlorodibenzo-p-dioxins 4.6 <2.1 <6.8 Total Heptachlorodibenzo-p-dioxins 31 5.9 15 Octachlorodibenzo-p-dioxin 130 41 43 Internal Recoveries % 2,3,7,8-T4CDF-13C12 80 81 83 2,3,7,8-T4CDD-13C12 86 93 94 1,2,3,7,8-P5CDF-13C12 76 81 88 1,2,3,7.8-P5CDD-13C12 72 75 85 1,2,3,4.7,8-H6CDF-13C12 91 97 102 1,2,3,6.7,8-H6CDD-13C12 84 91 97 1,2,3,4.6,7,8-H7CDF-13C12 89 100 109 1,2,3,4.6,7,8-H7CDD-13C12 82 96 105 OCDD-13C12 73 84 85

2,3,7,S-C14-Dibenzoiuran (DBS) pg <3.5 <1.4 2,3,7,8-C14-Dibenzo-p-dioxin <2.4 <1.6 <2.5 1,2,3,7,8-C15-Dibenzofuran <1.7 <1.8 2,3,4,7.8-C15-Dibenzofiiran 2.0 <1.7 <1.9 l,2,3,7,8-C15-Dibenzo-p-dioxin <1.6 <1.4 <1.9 1,2,3,4,7,8-C16-Dibenzofuran <2.4 <1.4 <1.7 1,2,3,6,7,8-C16-Dibenzofuran <1.2 <1.3 <1.7 2,3,4,6.7,8-C16-Dibenzofuran <1.4 <1.5 <1.9 1,2,3,7,8,9-C16-Dibenzofm'an <1.6 <1.8 <2.3 1,2,3,4-7,8-C16-Dibenzo-p-dioxin <2.0 <1.8 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <1.5 <2.2 <2.0 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <1.4 <2.0 <1.8 1,2,3,4.6,7,8-C17-Dibenzofuran <6.0 4.5 <2.8 1,2,3,4,7,8,9-C17-Dibenzofuran <7.2 <2.8 <1.9 l,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 14 5.9 6.8 1,2,3,4.6,7,8,9-C18-Dibenzofuran 14 6.2 6.3 l,2,3,4,6,7,8,9-C18-Dibenzo-p-dioxin 130 41 43

2,3,7,8-TCDF (DB225) pg <6.9 <2.8 <2.9 Internal Recoveries % 2,3,7,8-TCDF-13C12 71 73 73

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CITY_21MC100_009479033

NYC-WTC_000232665