NYC-WTC_000220031

NYC 9/11 Public Portal Document

AMBIENT GROUP Dioxins/Furans, HRGC/HRMS (8290) Client Sample ED: 211909-030

Lot-Sample #...; G2D190191 -003 Work Order#...: EX6VB1AA Matrl SOLID Date Sampled...; 04/18/02 Date Received..; 04/19/02 Instrument: 5D5 PrepC-’ ■ .... 04/19/02 Analysis Date...- 04/24/02 Units..-.: Pg/g Prep Batch #...; 2109509 Dilution Factor: 1 % Moisture;

DETECTION TEF TEQ LIMIT FACTOR CONCENTRATION PARAMETER RESULT

23,7,8-TCDD 570 1.000 570.000000 1,23,7,8-PeCDD 1700 0.500 850.000000 1,23,4.7,8-HxCDD 1500 0.100 150.000000 1,23,6,7,8-HxCDD 2900 0.100 290.000000 133.7,83-HxCDD 2700 0.100 270.000000 ' 1,23,4,6,7,8-HpCDD 19000 0.010 ' 190.000000 " OCDD 46000 0.001 46.000000 2,3,7,8-TCDF 3100 CON 0.100 310.000000 1,23,7,8-PeCDF 4300 0.050 220.000000 . , . 23,4,7,8-PeCDF 6500 0.500 3300.000000' 1,23,4,7,8-HxCDF 6200 0.100 620.000000 1,23,6,7,8-HxCDF 6500 0.100 6S0.000000 2,3,4,6,7,8-HxCDF 7000 0.100 700.000000 1,23,7,8,9-HxCDF 500 0.100 50.000000 1,23,4,6,7,8-HpCDF 35000 0.010 350.000000 1,23,4,7,8,9-HpCDF 4100 0.010 41.000000 OCDF 25000 0.001 25.000000 Total TEQ Concentration 8,532.000000 PERCENT RECOVERY INTERNAL STANDARDS RECOVERY LIMITS

13C-2,3,7,8-TCDD 65 40- 135 13C-l,2,3,7,8-PeCDD 58 40-135 13C-1.2,3,6.7,8-HxCDD 55 40 - 135 13C-l,2,3,4,6,7,8-HpCDD 73 40-135 I3C-OCDD 92 40.-135 13C-2,3,7,8-TCDF SO 40-135 13C-1,23,7,8-PeCDF 69 40-135 13C-l,2,3,4,7,8-HxCDF 65 . 40-135 13C-l,2,3,4,6,7,8-HpCDF 77 40-135

Notes: TEF values are cited in U.S. Environmental Protecuon Agency. (1989) Interim procedures for estimating nslts associated with exposures to mixtures of chlorinated dibenzo-p-dioxins and .dibcnzofurans fCDDs and CDFs) and 1989 update. U.S. Environmental Protection Agency, Risk Assessment forum, Washington, DC; EPA/625/3-89/01S

CON Confirmation analysis

S«c_Sliid_TEQ.Ri>T Rev 0 11/10/200(

CITY_21MC100_002831213

NYC-WTC_000220031