NYC-WTC_000187474

NYC 9/11 Public Portal Document

NYC Emergency Response Air Samples * dioxin and furan results Sampling Date 12/11/01

Sample No. WG6353-1 05871 05872 05873 05874 05875 05876 Sampling Location Method Blank R- TAGA R- TAGA A-Barclay & West Broadway Loc 3B Church & Vesey B-Church & Dey St. C'Liberty St. & Church St.

Volume (Liters) 0 6600 6825 6765 7200 7200 7200

Analyte Result EMPC MDL Result EMPC MDL Result EMPC MDL Result EMPC MDL Result EMPC MDL Result EMPC MDL Result EMPC MDL ng ng ng ng/m’ ng/m® ng/m’ ng/m^ ng/m® rg/m’ ng/m^ ng/m® ng/m® ng/m’ ng/m® ng/m® ng/m® ng/m’ ng/m® ng/m’ ng/m^ ng/m’

2378-TCDD u 0.020 U 0.0030 u 0.0029 U 0.0030 U 0.0028 u 0.0028 U 0.0028 12378-PeCDD 0.0006 J 0.10 U 0.015 0.0006 J 0.015 u 0.015 u 0.0001 0.014 u 0.0001 0.014 U 0.014 123478-HxCDD u 0.10 U 0.015 u 0.0002 . u 0.015 u 0.014 u 0.014 U 0.014 123678-HxCDD 0.0034 J 0.10 u 0.0005 0.015 u 0.015 u 0.0006 0.015 u 0.0004 0.014 u 0.0004 0.014 U 0.0004 0.014 123789-HxCDD U 0.10 u 0.015 0.0008 J 0.015 u 0.015 u 0.014 u 0.0002 0.014 U 0.014 1234678-HpCDD U 0.0051 0.10 u 0.01 r 0.0027 J . 0.'015 u "0.015 u 0.014 u 0.014 U 0.014 OCDO 0'0246 J 0.20 u 0.030 u 0.029 u 0.030 u 0.028 u 0.028 u 0.028

2378-TCDF U 0.020 U 0.0030 U 00029 u 00030 0.0002 J 0.0028 0.0002 J 0.0028 u 0.0028 12378-PeCpF U aopo4. 0.10 U U 1 0.015 u 0.015' U 0.0001 0.014 u 0.0001 0.014 u 0.0002 0.014 23478’-PeCDF U 0.0006 o’. 10 U .Q.O_15 u 0,015 u 0,015 O.OO’OIJ 0.014 0.0002 J 0.014 u 0.0002 0.014 123478-HxCDF U 6.10 U 0.0002 0Q15 _ u 0.015 u 0.0001 0015. 0.0001 0.014 u 0.0002 0.014 u 0.0003 0.014 123678-HxCbF U U 0.0002 .o,oiL_ u 0.015 0.0061 J _0,015 ............ u’ ■■ 0.0001 0.014 u 0.014 u 0.014 234678-HxCbF ' U ■’0.10 U 0.0001 0.015 u 0.015 u 0.015 0.0061 J 0.014 u 0.0001 0.014 u 0.0001 0.014 123789-HxCDF U 0.10 U 0.015 u 0.015 u 0.615 0.0001 J 0.014 u 0.014 u 0.014 1234678-HpCDF U 6.10 U 0.015 _ u Jqii: u 0.0003 6.615 0.0005 0.014 0.0006 J 0.014 u 0.0007 0.014 1234789-HpCDF U 0.10 U O.d<5 ooooij 0.015 u 0.015 u 0.0001 0.014 U 0.014 u 0.014 OCDF u 0.0014 0.20 U 0636 u 0.0'29 u 0.0004 0.030 u 0.0007 0.028 0.0005 J 0.028 u 0.0006 0.028

Total TCDDs u u 0.0017 0.0014 0.0012 0.0022 0.0022 Total PeCDDs 0.0006 u 0.0034 0.0007 0.0007 0.0011 0.0006 TotalHxCDDs 0.0044 u 0.0057 0,0003 0.0006 0.0009 0.0003 Total HpCDDs 0.0024 0.0017 0.0050 0.0010 0.0015 0.0009 0.0014

Total TCDFs U U L) u 0.0009 0.0014 U Total PeCDFs U U u u 0.0007 0.0004 U Total HxCDFs U 0.0003 u 06001 00005 0.0005 0.0003 Total HpCDFs 0.0010 0.0008 0.0009 u U 0.0006 0.0002

Total Adjusted Cone

Q iTEQ(ND=0) |TEQ(ND=1/2) 0.0006 0.0012 ! _ I I _Q:00W t 0 0001 I 0.0004 0.0005 0.0000 0.0001 I 0.0001 0.0002 I o.oooi’ I 0.0002 0.0000 0.0001

H COC# 19858 K B= Not detected due to blank contamination I EMPC: Estimated Maximum Possible Concentration TEQ: Toxicity Equivalent ERTC 1/4/02 s o The TEQ (ND=1/2) is calculated using 1/2 of the estimated detection limit for U (non detect) values. o o I o o

(JI 12-11-01dioair co

NYC-WTC_000187474