Draft WTC Air Analysis Results, Feb 5, 2002

NYC 9/11 Public Portal Document

NO QC EVALUATION HAS BEEN PERFORMED, DATA VALIDITY IS UNSUBSTANTIATED AND THE DATA SHOULD BE USED WITH DISCRETION I WTC TEDLAR BAG AIR ANALYSIS, TO-1S MODIFIED METHOD DRAFT GC/MS Results for 02/05/02

Name NYC965 NYC966 NYC967 NYC968 NYC970 NYC969 ■ < zf ^^Kn^e Location Instrument Blank Tedlar Bag Blank Washing Tent Austin Tobin Plaza North Tower South Tower. Ambient Air Sample Number_______ A07433 A07434 A07436 A07435 - ’ Sample Height________ Breathing Level Breathing Level Ground Level Ground Level Sample Volume 250 mL 250 mL 250 mL 250 mL 250 mL’,. Reporting Limit (RL) 20 20 20 20 20 ' -20 2 ': , Sample Cone. Units ppbv ppb. ppbv ppbv PPb, ppbv . Propylene____________ RL RL RL RL RL - ^RL ■ =-■ Chloroditluoromethane RL RL RL RL RL RL ?.<?■• Dichlorodifluoromethane RL RL RL RL RL ■Y RL-;.-.2Y- Dichlorotetrafluoroethane RL RL RL ■ RL RL ■ RL ' Chloromethane________ RL RL RL RL RL ■ ;rl 2 2 Vinyl Chloride RL RL RL RL RL . A-RL'^r- 1,3-Butadiene RL RL RL RL RL ■ . RL , Bromomethane RL RL RL RL RL RL - Y, Chloroethane RL RL RL RL RL ■ RL - , f'.; Trichlorofluoromethane RL RL RL RL RL RL Isopropyl Alcohol RL RL 24 RL RL RL. -A Acetone RL RL RL RL RL -RL . Trichlorotrifluoroethane RL RL RL RL RL . -a RL ’ 1,1-Dichloroethene RL RL RL RL RL i RL 3-Chloropropene RL RL •RL RL RL I RL Methylene Chloride_____ RL RL RL RL RL I RL MTBE RL RL RL RL 33 1 33 ■ trans-1,2-Dichloroethene RL RL RL RL RL ■ RL Hexane RL RL RL . RL RL RL 1,1-Dichloroethane RL RL RL RL RL RL • Vinyl Acetate RL RL RL RL RL RL ^Butanone___________ RL RL RL RL RL • RL = ^MS^Pichloroethene RL RL RL RL RL RL W^^fAcetate RL RL RL RL RL RL . ■ Chloroform RL RL RL RL RL RL Tetrahydrofuran RL RL RL RL RL RL Jr . 1,1,1-Trichloroethane RL RL RL RL RL RL • Cyclohexane__________ RL RL RL RL RL RL . Carbon Tetrachloride RL RL RL RL RL RL 1,2-Dichloroethane RL RL RL RL RL RL Benzene RL RL RL RL RL RL Heptane RL RL RL RL RL RL Trichloroethene RL RL RL RL RL RL 1,2-Dichloropropane RL RL RL RL RL RL 1,4-Dioxane RL RL RL RL RL . RL Methyl Isobutyl Ketone RL RL RL RL RL RL cis-1,3-Dichloropropene RL RL RL RL RL RL Toluene RL RL RL RL RL RL trans-1,3-Dichloropropene RL RL RL__ RL RL RL 1,1,2-Trichloroethane RL RL RL__ RL RL RL 2-Hexanone RL RL RL RL RL RL Tetrachloroethene RL RL RL__ RL RL RL_____ Dibromochloromethane RL RL RL__ RL RL RL 1,2-Dibromoethane RL RL _5L_ RL RL RL Chlorobenzene RL RL RL__ RL RL RL Ethylbenzene RL m&p-Xylenes RL RL RL RL RL _5L. RL RL RL RL RL_____ 0-Xylene RL RL _RL__ RL RL Styrene RL RL -Rk- RL RL RL RL Bromoform RL RL RL__ RL RL RL 1,1,2,2-Tetra chloroethane RL RL 4^thyltoluene_________ RL RL RL__ _BL_ RL RL RL_____ RL RL ^BfcTrimethylbenzene RL RL RL RL RL RL W^yfrimethylbenzene ”Dichlorobenzene RL RL .5L RL RL RL RL RL_____ RL RL RL RL_____ 1.4-Dichlorobenzene RL RL RL__ RL RL RL Benzyl Chloride RL RL RL RL RL RL_____ 1,2-Dichlorobenzene RL RL RL RL RL RL 1,2,4-Trichlorobenzene RL RL RL RL RL —_5L__ Hexachloro-1.3-Butadiene RL RL RL RL RL I RL

CITY_21MC1OO_OO2961864

NYC-WTC_000186599