Laboratory analysis report appendix, World Trade Center

NYC 9/11 Public Portal Document

Pace Analytical Services, Inc. 1700 Elm Street - Suite 200 Minneapolis, MN 55414

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Client - ATC Client's Sample ID ATC-0318-150M-DX2 Lab Sample ID 103418836 1 Filename U20421A_10 Injected By BAL Total Amount Extracted 1 m2 Matrix WIPE % Moisture NA Dilution NA I Dry Weight Extracted NA Collected 03/18/2002 I CAL Date 04/16/2002 Received 03/26/2002 CCal Filename(s) U20421A_01 &U20421A_15 Extracted 04/05/2002 Method Blank ID BLANK-1556 Analyzed 04/21/2002 23:41 i Native Cone EMPC LRL Internal ng's J Percent Isomers ng/m2 ng/m2 ng/m2 Standards Added Recovery 2,3,7,8-TCDF ND 0.0038 A 2,3,7,8-TCDF-13C 2.00 67 Total TCDF ND 0.0020 2,3.7.8-TCDD-13C 2.00 65 1,2,3,7,8-PeCDF-13C 2.00 72 2.3,7,8-TCDD ND 0.0046 A 2,3,4,7,8-PeCDF-13C 2.00 72 Total TCDD 0.0085 0.0020 BJ 1,2,3,7,8-PeCDD-13C 2.00 71 1,2,3,4,7,8-HxCDF-13C 2.00 95 1,2,3,7,8-PeCDF ND 0.0100 1,2,3,6,7,8-HxCDF-13C 2.00 100 2,3,4,7,8-PeCDF ND 0.0100 2,3,4,6,7,8-HxCDF-13C 2.00 96 Total PeCDF ND 0.0100 1,2,3,7,8,9-HxCDF-13C 2.00 98 1,2,3,4,7,8-HxCDD-13C 2.00 90 1.2,3.7,8-PeCDD ND 0.0100 1,2,3,6.7,8-HxCDD-13C 2.00 91 Total PeCDD ND 0.0100 1,2,3,4,6,7,8-HpCDF-13C 2.00 87 1,2,3,4,7,8,9-HpCDF-13C 2.00 96 1,2,3,4,7.8-HxCDF ND 0.0100 1,2,3,4.6,7,8-HpCDD-13C 2.00 89 1,2,3,6,7,8-HxCDF ND 0.0100 OCDD-13C 4.00 109 2,3,4,6,7,8-HxCDF ND 0.0100 1,2,3.7,8,9-HxCDF ND 3 Total HxCDF ND 0.0100 0.0100 1,2,3,4-TCDD-13C 1,2,3,7,8,9-HxCDD-13C 2.00 2.00 NA NA 1,2,3,4,7.8-HxCDD ND 0.0100 2,3,7,8-TCDD-37CI4 0.20 71 1,2,3.6,7,8-HxCDD ND 0.0100 1,2,3,7,8,9-HxCDD ND 0.0100 Total HxCDD ND 0.0100 1,2,3,4,6,7,8-HpCDF ND 0.0100 Total 2.3,7,8-TCDD J 1,2,3.4,7,8,9-HpCDF ND 0.0100 Equivalence; 0.00 ng/m2 Total HpCDF ND 0.0100 (Using ITE Factors) 1,2,3,4,6,7,8-HpCDD ND J Total HpCDD ND 0.0100 0.0100 OCDF ND 0.0200 OCDD ND 0.0200 LRL = Lower Reporting Limit Cone = Concentration (Totals include 2,3,7,8-substltuted isomers) I = Interference i EMPC = Estimated Maximum Possible Concentration E = PCDE Interference I A = Detection Limit based on signal-to-noise measurement S = Saturated signal J = Concentration detected is below the calibration range ND = Not Detected B = Less than 10 times higher than method blank level NA = Not Applicable P = Recovery outside of target range NC = Not Calculated Nn = Value obtained from additional analysis * = See Discussion Report No.... 02-1055553

REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.

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