NYC-WTC_000232660

NYC 9/11 Public Portal Document

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6th 6th 6th Client ID: Floor-07 Floor-08 Floor-09 R03030259- -lOA -llA -12A LabNo.: 009202 03 009203 03 009204 03 Date Sampled: 05-Mai--2003 05-Mar-2003 05-Mai--2003 Component MDL Units

Total Tetrachlorodibenzofurans pg 76 7.4 7.5 Total Pentachlorodibenzofiirans 25 <3.1 10 Total Hexachlorodibenzofurans 18 2.9 8.3 Total Heptachlorodibenzofurans <13 <7.0 <7.4 Octachlorodibenzofuran 29 10.0 11 Total Tetrachlorodibenzo-p-dioxins 62 14 27 Total Pentachlorodibenzo-p-dioxins 17 3.5 <14 Total Hexachlorodibenzo-p-dioxins 33 3.2 14 Total Heptachlorodibenzo-p-dioxins 41 32 24 Octachlorodibenzo-p-dioxin 120 84 73 Internal Recoveries % 2,3,7,8-T4CDF-13C12 96 94 83 2,3,7,8-T4CDD-13C12 103 107 99 1,2,3,7,8-P5CDF-13C12 94 101 84 1,2,3,7.8-P5CDD-13C12 80 88 70 1,2,3,4.7,8-H6CDF-13C12 109 118 107 1,2,3,6.7,8-H6CDD-13C12 99 106 95 1,2,3,4.6,7,8-H7CDF-13C12 110 123 108 1,2,3,4.6,7,8-H7CDD-13C12 100 112 99 OCDD-13C12 87 100 88

2,3,7,S-C14-Dibenzoiuran (DBS) pg <14 <4.5 <7.5 2,3,7,8-C14-Dibenzo-p-dioxin <2.9 <2.5 <2.7 1,2,3,7,8-C15-Dibenzofuran <3.8 <3.0 2,3,4,7.8-C15-Dibenzofiiran <4.0 <3.1 l,2,3,7,8-C15-Dibenzo-p-dioxin <4.8 <2.9 <5.1 1,2,3,4,7,8-C16-Dibenzofuran 6.1 <1.7 3.2 1,2,3,6,7,8-C16-Dibenzofuran 3.9 <1.7 <2.3 2,3,4,6.7,8-C16-Dibenzofuran <2.8 <2.0 1.9 1,2,3,7,8,9-C16-Dibenzofm'an <3.3 <2.3 <2.0 1,2,3,4-7,8-C16-Dibenzo-p-dioxin <2.5 <2.0 <2.4 1,2,3,6,7,8-C16-Dibenzo-p-dioxin <2.8 <2.3 <2.7 l,2,3,7,8,9-C16-Dibenzo-p-dioxin <2.6 <2.1 <2.5 1,2,3,4.6,7,8-C17-Dibenzofuran <11 <6.2 <6.5 1,2,3,4,7,8,9-C17-Dibenzofuran <3.6 <2.6 <3.1 l,2,3,4,6,7,8-C17-Dibenzo-p-dioxin 17 16 10 1,2,3,4.6,7,8,9-C18-Dibenzofuran 29 10.0 11 l,2,3,4,6,7,8,9-C18-Dibenzo-p-dioxin 120 84 73

2,3,7,8-TCDF (DB225) pg <7.2 <6.1 <3.9 Internal Recoveries % 2,3,7,8-TCDF-13C12 79 83 78

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CITY_21MC100_009479036

NYC-WTC_000232668