Air sample lab report, Broadway and 31st St, Oct 2001

NYC 9/11 Public Portal Document PEDNEAULT ASSOCIATES PAGE 15 10/22/2001 17:03 6314676305

□ Frepared Exclusively For: PEDNEAULTASSOCIATES, TNC NYCDEP-Etnergcncy Response & Tech Assmt. !615mNTH^yENUE, BOX2n5, BOHEMIA. H.Y l>716 96-05 Horace Harding Expressway LAB#: 01100399 Corona , NY 11368 PROJECT ID WORLD TRADE CENTER- 5 Boro Sampling (718 ) 595-4650 MATRIX: AIR\GAS I m,p-Xylene 2.45 ppb v/v 0.1785 USEPATO-15 10/21/01 Styrene 0.18 ppb v/v 0.0896 USEPATO-15 10/21/01 1,1,2,2-TetrachlorO6thane ND ppb v/v 0.1471 USEPATO-15 lC/21/01 o-Xylene 0.90 ppb v/v 0.0111 USEPATO-15 10/21/01 1,3.5-TrimethylbGnzene 0.37 ppb v/v 0.0757 USEPATO-15 10/21/01 1,2,4-Trimethylben2ene 1.19 ppb v/v 0.1511 USEPATO-15 10/21/01 1,3-Dichloroben2ene ND ppb v/v 0.1564 USEPATO-15 10/21/01 1,4-Dlchloroben2ene ND ppb v/v 0.169 USEPATO-15 10/21/01 1,2-DicWorobenz0ne ND ppb v/v 0.2014 USEPATO-15 IO.'21/OI 1,2,4-Trichlorobenzen9 ND ppb v/v 0.1785 USEPATO-15 10/21/01 Hexachloro-1.3-Butadiene ND ppb v/v 0.1976 USEPATO-15 10,21/01 Tentatively Identified (Oompounds 10/21/01 Isobutane 2.49 ppb v/v USEPATO15 10/21/01 2-Methyl propene 1.65 ppb v/v USEPATO-15 10/21/01 Qutane 3.58 ppb vA/ USEPATO-15 10/21/01 2-Melhy! butane 5.12 ppb v/v USEPA TO-15 10/21/01 Pentane 2.29 ppb v/v USEPATO-15 10/21/01 2-Methyl Pentane 1.70 ppb v/v USEPA T015 10/21/01 Methylcyclopentane 1.05 ppb v/v USEPA TO15 10/21/01

John Pedneault Page 14 of 16 NTi=RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS ELAP #10224 MWBE #46075

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