NYC-WTC_000232660

NYC 9/11 Public Portal Document

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8th 8th 8th Client ID: Floor-07 Floor-08 Floor-09 R03030259- -16A -17A -18A LabNo.: 009208 03 009209 03 009210 03 Date Sampled: 05-Mar-2003 05-Mar-2003 05-Mai--2003 Component MDI, Units

Total Tetrachlorodibenzofurans pg 30 <3.6 5.4 Total Pentachlorodibenzofiirans 12 <3.3 <5.1 Total Hexachlorodibenzofurans 6.9 <3.5 <4.0 Total Heptachlorodibenzofurans <9.1 <4.3 <8.6 Octachlorodibenzofuran <4.3 <4.9 <7.1 Total Tetrachlorodibenzo-p-dioxins 50 <5.6 7.6 Total Pentachlorodibenzo-p-dioxins 28 <7.3 <6.6 Total Hexachlorodibenzo-p-dioxins 6.2 <31 <58 Total Heptachlorodibenzo-p-dioxins 12 <4.7 9.1 Octachlorodibenzo-p-dioxin 44 9.9 33 Internal Recoveries % 2,3,7,8-T4CDF-13C12 77 69 74 2,3,7,8-T4CDD-13C12 102 91 95 1,2,3,7,8-P5CDF-13C12 86 77 81 1,2,3,7.8-P5CDD-13C12 92 81 87 1,2,3,4.7,8-H6CDF-13C12 101 91 98 1,2,3,6.7,8-H6CDD-13C12 100 93 99 1,2,3,4.6,7,8-H7CDF-13C12 93 93 96 1,2,3,4.6,7,8-H7CDD-13C12 98 96 96 OCDD-13C12 91 84 81

2,3,7,S-C14-Dibenzoihran (UB5) pg 12 <3.6 5.4 2,3,7,8-C14-Dibenzo-p-dioxin <4.8 <3.6 <5.0 1,2,3,7,8-C15-Dibenzofuran <6.4 <3.3 <5.1 2,3,4,7.8-C15-Dibenzofiiran <6.6 <3.3 <5.2 l,2,3,7,8-C15-Dibenzo-p-dioxin <7.5 <7.3 <6.6 1,2,3,4,7,8-C16-Dibenzofuran 6.0 <3.0 <3.4 1,2,3,6,7,8-C16-Dibenzofuran <3.1 <3.1 <3.6 2,3,4,6.7,8-C16-Dibenzofuran <3.6 <3.6 <4.1 1,2,3,7,8,9-C16-Dibenzofi]ran <4.3 <4.4 <5.0 1,2,3,4-7,8-C16-Dibenzo-p-dioxin <5.3 <6.6 <5.3 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <5.6 <7.0 <5.6 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <5.2 <6.5 <5.2 1,2,3,4.6,7,8-C17-Dibenzofuran <7.9 <3.7 <7.4 1,2,3,4,7,8,9-C17-Dibenzofuran <4.8 l,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 12 <4.7 9.1 1,2,3,4.6,7,8,9-C18-Dibenzofuran <4.3 <4.9 <7.1 l,2,3,4,6,7,8,9-C18-Dibenzo-p-dioxin 44 9.9 33

2,3,7,8-TCDF (DB225) pg 7.1 <2.8 4.6 Internal Recoveries % 2,3,7,8-TCDF-13C12 77 75 80

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CITY_21MC100_009479038

NYC-WTC_000232670