NYC-WTC_000187430

NYC 9/11 Public Portal Document

b314t>7b90b PEDNEAULT ASSOCIATES PAGE 18 05/26/2001 17;bl

Prepared Exclusively For: PEDNEAULTASSOCIATES, INC. NYCDEP-Eraergency Response & Tech Assnit leist^rNTHAyEmE. box2os. bohema, Nr ii7i6 96-05 Horace Harding Expressway LAB#: 01090294 Corona NY 11368 PROJECT ID WORLD TRADE CENTER - 5 Boro Air Sampling (718) 595-4650 MATRIX: AIRIGAS

m,p-Xylene 5.21 ppb v/v 0.1785 USEPA TO-15 9/24/01 Styrene 0.11 ppb v/v 0.0896 USEPA TO-15 9/24/01 1.1,2,2-Tetrachloroethane ND ppb v/v 0.1471 USEPA TO-15 9/24/01 0-Xylene 2.00 ppb v/v 0.0111 USEPA TO-15 9/24/01 1,3,5-Trlmethylbenzene 0.04 ppb v/v 0.0757 USEPA TO-1S 9/24/01 1,2,4-Trimethylben2ene 2.49 ppb v/v 0.1511 USEPA TO-15 9/24/01 1,3-DichlorobQnzene ND ppb v/v 0.1564 USEPA TO-15 9/24/01 1 .A-Dichlorobenzene 0.26 ppb v/v 0.169 USEPA TO-15 9/24/01 1,2-Dictilorobenzene ND ppb v/v 0.2014 USEPA TO-15 9/24/01 1,2,4-Trichlorobenzene NO ppb v/v 0.1785 USEPA TO-15 9/24/01 Hexachloro-1,3-Butadlene ND ppb v/v 0.1976 USEPA TO-15 9/24/01 Tentatively Identtfleo Compounds 9/24/01 Butane 0.91 ppb v/v 9/24/01 Penrane 1.54 ppb v/v 9/24/01 2,3-dimethyl butane 1.43 ppb v/v 9/24/01 3-Methyl pentane 2.07 ppb v/v 9/24/01 Methylcyclopentane 2.24 ppb v/v 9/24/01 3-Methyl hexane 1.35 ppb v/v 9/24/01 Heptane 1.04 ppb v/v 9/24/01 2.3,4-Trtmethyl pentane 0.91 ppb v/v 9/24/01

John Pcdneault Page 8 0-114 ND-RESULT IS EQUAL TO OR LESS THAN MDL Lab Director NYS £LAP 410224 WWBE #40075

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NYC-WTC_000187437