Air sample lab report, World Trade Center, Oct 2001

NYC 9/11 Public Portal Document

10/31/2001 11:41 6314676905 PEDNEAULT ASSOCIATES PAGE 03/03

[ Prepared Exclusively Por: PEDNEAULTASSOCJAr£S, INC. NYCDEP-Einergency Response & Tech Assmt, letSt^lNTHAVEWE, BOX2l)5, N.Y. 11716 96-05 Horace Harding Eupressway LAB#: 01100508 Corona , NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718) .595-4650 MATRIX: AIR\GAS

m,p-Xylene ND ppb v/v 0,1785 USEPA TO-15 10/29/01 Styrene ND ppb v/v 0.0896 USEPA TO-15 10/29/01 1,1,2,2-Tetrachloroethane ND ppb v/v 0.1471 USEPA TO-15 10/29/01 O-Xylene ND ppb v/v 0.0111 USEPA TO-15 10/29/01 l.a.S-Trimethylbenzeno ND ppb v/v 0.0757 USEPA TO-15 10/1:9/01 1.2,4-Trimethylben26no ND ppb v/v 0.1511 USEPA TO-15 10/19/01 1 .S-Dichlorobenzene ND ppb v/v 0.1564 USEPA TO-15 10/19/01 1,4-Dichlorobenzane ND ppb v/v 0.169 USEPA TO-15 10/29/01 1,2-DichIorobenzene ND ppb v/v 0,2014 USEPA TO-15 10/29/01 1,2,4-Trichlorobenzene ND ppb v/v 0.1765 USEPA TO-15 10/29/01 Hexachloro-1,3-Butadiene ND ppb v/v 0.1976 USEPA TO-15 10/29/01

John Pedneault Page 16 of 16 ND=BESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS EL.AP #10224 NR=NON REPORTABLE RESULTS MWI3E #46075

CITy_21MC100_0 09017531

NYC-WTC_000182461