NYC-WTC_000220174

NYC 9/11 Public Portal Document

JUN-11-2002 18=59 DEUTSCHE BANK 212 469 3210 P.18

AMBIENT GROUP DIoxins/Furans, HRGC/HRMS (8290) atent SHnipl« n>: 211909-120

LflC-Sample A...: Q2D190191-012 Work Order#-.! BX6VP1AA Matrix--: SOLID Date Sampled...: 04/18/02 Date Recfived-: 04/19/02 Initrumtat; 5D5 Prep Date---- ; 04/19/02 AnaJyati Date-: 04/24/02 Uidte.._i- Pg/8 Prep Batch 2109509 Dilution Factor; 1 % Molftnrc:

DETECTION TEF TEQ UMH FACTOR CONCENTRATION PARAMETER RESULT

2,3,7.R-TCDD 1100 1.000 1,100.000000 1,23,73-PeCDD 4000 0.500 2,000.000000 1,23,4,73-HxCDD 3100 0.100 310.000000 1,23,6.7,8-HiCDD 5000 0.100 SOO.0O0O00 1,23,7,83-HxCDD 4800 0.100 480.000000 ia3.4,6.7,8-HpCDb 17000 0.010 270.000000 OCDD 52000 o.ooi 52.000000 23,7.8-TCDF 5600 CON 0.100 560.000000 1,23,7,8-PeCDF 6900 0.050 340.000000 23,4,7,8-PeCDF 8900 0.500 4,400,000000 133.4.73-HiCDF 11000 0.100 1,100.000000 133,6,7,8-HxCDF 9600 0.100 960.000000 23,4,6,73-HxCDF 8800 0.100 880.000000 1,2,3,7,83-HiCDF 840 0.100 84.000000 1334.6.7,8-HpCDF 38000 0.010 380.000000 1,23,4,7.8.9-HpCDF 4400 0.010 44.000000 OCDF 20000 0.001 20.000000 Total TEQ Concentration 13,480.000000 PERCENT RECOVERY INTERNAL standards RECOVERY LiMrrs

130-2,3,7,8-TCDD 57 40 - 135 13C-l,2,3.7.8-PeCDD 55 40-135 13C-l,2,3,6,7,8-HxCDD 50 40- 135 13C-l,2,3.4.6.7,8-HpCDD 63 40 - 135 13C-OCDD 69 40-135 130-2,3,7,8-TCDF 43 40-135 13C-l,2,3,7,8-PeCDF 61 40-135 1301,2,3,4,7,8-HxCDF 52 40-135 130-1,2,3,4,6,7,8-HpCDF 63 40 -135

Notes:

TEP v»luo BIC died In US. EovtonmcinBl frolecUoi) Agency, (1989) Interim procedures for ejiinulinj rista ajSdclitMl wtlh otpoturej to mlxlura of thlartnJtei) dlboKO-p-dlMlnt nod -dlbcmoanmu (CDDt and COFs) and 1989 upiiii. U.S. BnvUofitncnttiJ Fiouction AgOTKy. Riik AnauineiJi fbninc WnjhioHoa. DC BPA9(52M-«!Vt)lfi.

CON Confirmation analysis.

E»r^Be_T8Z3 JtZT 0 11/10/2001

CITY_21MC100_002832739

NYC-WTC_000220174