NYC-WTC_000209350

NYC 9/11 Public Portal Document 05/20/2UWI i4;03 bJIQb/btJUO rtUHtHUI-I I E.ZI rHsac.

Pupate a' pjcclustvely fof: PJEi)I\EAVLTASSOCL4r£S, LNC N. Y.C. D.E.P. HAZMAT DIVISION lilSNimilArSWE. BOX20S, BOHB.MJA. .V.K 11716

59-17 junction BOULEVAJRD LAB#: 01090230 rCRPNA T4Y 11368 PRO.TECT TD WORLD TRADE CENTER (718) 595-6431 MATRIX: AIR\GAS

I,.. . . . ' , ■ . i 1,1.2-Tr.chlQ'oethane ND ppb v/v 0.0856 USEPAT0.15 9/19/01 i Toluene -0.2 ppb v/v 0.0735 USEPA TC 15 9/19/01 Ij^Drcromoethane ND ppb v/v 0.0971 USEPA TO-’5 9/19/01 Tetrechioroefhene 0.69 ppb vA 0.084*> USEPA 10-15 9/19/01 Chlorobenzene ND ppb v/v 0.1343 UStPAI 0-16 9/19/01

' Ethylbenzene 1,S5 pph mN 0.0744 USEPATO-15 9/19/01 j m.p-Xylene___________ 4.33 ppb v/v 0.1765 USEPATO-15 9/19/01 i Styrene 0.60 ppb v/v 0.0896 USEPATO.15 9/19/01 1,1,2.2-T etrachleroethans ND ppb v/v 0.1471 USEPATO-15 9/19/01 o-Xylon® 17? ppb v/v 0.0111 USEPATO-15 9/19/01 : I.S.S-TrimethylDenzene 0.73 ppb v/v 0.0757 USEPATO-15 9/19/01 1,2,4-Tnmethyb9nzene 2.08 ppb v/v 0.1511 USEPATO-15 9/19/01 ■|,3-Dlchloro6enzene ND ppb v/v 0.1664 USEPA TO 15 9/19/01 j 1,4-Dich!orobeh2ene 0.51 ppb v/v 0.169 USEPA TO-15 9/19/01 ’ 1.2-Dichiorcben2ene ND ppb v/v 0.2014 USEPATO-15 9/19'01 1,2,4-Trichlorob0nzene 0.43 ppb v/v 0.1785 USEPATO-15 9/19,'01 I llexacliloro-1,3-Butadieno 0.22 ppb v/v 0.1976 USEPA TO.1.5 9/19'01 j Tentatively Identified Compounds 9./19/01 . 2-M9th.yl-1-propene__________ 2.31 tng/m3 9/19'01 ! 2-Methyl butane 3.61 ing/m3 9/19'01 j 2-Methyl Pentane 1.36 mo/m3 9/19'01 < Ethyl acetate 0.96 mg/m3 9/19'01 i 2,2,-Dimethyl hexane 1.91 mg/m3 9/19'01

John Pecfneauit Page 2 of 14 Lab Director ND“RrSULT IS EQUAL TO OR LESS THAN MDL NYS tLAP# 10224 MWBE #40075

CITY_21MC100_002846344

NYC-WTC_000209351