Draft GC/MS results for VOCs, WTC site, Nov 20 2001

NYC 9/11 Public Portal Document

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NO QC EVALUATION HAS BEEN PERFORMED, * DATA VALIDITY IS UNSUBSTANTIATED AND THE DATA SHOULD BE USED WITH DISCRETION

DRAFT GC/MS Results for 11/20/01 DRAFT Tentatively Identified Compounds

File Name NYC203_______ INYC204________ NYC205____________________ Sample Location Instrument Blank TedlarBaqBlank Washing Tent_______________ Sample Number 07123_____________________ Sample Height Breathing Level______________ Volume 250 ml 250 mL . None None 2-Furancarboxaldehyde 40 ppbv unknown ketone 28 ppbv '' unknown ketone 34 ppbv______ unknown PAH 30 ppbv

File Name NYC207 NYC208 [NYC206 __________ Sample Location North Tower South Tower Austin Tobin Plaza Sample Number 07124 07126 07125______________ Sample Height Ground Level Ground Level Breathing Level______ Volume 50 mL 100 mL 250 mL_____________ Pentane 950 ppbv None Unknown PAH 27 ppbv Furan 320 ppbv_________ _____ unknown hydrocarbon 220 ppbv 2-Methylbutanal 330 ppbv______ C8 alkene 320 ppbv___________ 2-IVIethylf4Jran 1100 ppbv_______ Methyl Cyclopentene 170 ppbv 2,5-dimethyl Furan 270 ppbv C9 alkane 180 ppbv___________ Octane 410 ppbv______________ Propyl Cyclohexane 340 ppbv 2,4-Dimethyl-1-heptene 230 ppbv Cyclopentanone 160 ppbv______ o Alkylated Benzene 1200 ppbv H k; Alkylated Benzene 320 ppbv I Alkylated Benzene 230 ppbv I—i so alpha-methylstyrene 380 ppbv ?

Benzaldehyde 180 ppbv________ o 2-Ethylhexanol '190 ppbv________ Io o Benzonitrile 150 ppbv . - ’• ■; J //i- r-' 'S’ ■>

o Undecane 150 ppbv -Y ".y ''Y cn ,5 O LO

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