Draft WTC Air Analysis Results, Feb 3, 2002

NYC 9/11 Public Portal Document f' V- NO QC EVALUATION HAS BEEN PERFORMED, ♦ ' vr- DATA VALIDITY IS UNSUBSTANTIATED ANO THE DATA SHOULD BE USED WITH DISCRETION WTC TEDLAR BAG AIR ANALYSIS, TO-15 MODIFIED METHOD t DRAFT GC/MS Results for 02/03/02

Name____ NYC939 NYC940 NYC941 NYC9342 NYC944 NYC943 ' iple Location Instrument Blank Tedlar Bag Blank Washing Tent Austin Tobin Plaza North Tower South Tower . Ambient Air Plume Plume p Sample Number________ A07425 A07426 AQ7428 A07427 ; 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 Sample Cone. Units PPb» PPP» ppbv ppbv PPb, ppb, z : Propylene RL RL RL RL RL YRL Chlorodifluoromethane RL RL RL RL RL '■RL.r, Dichlorodifluoromethane RL RL RL RL RL RL' ;~ Dichlorotetrafluoroethane RL RL RL RL RL ’ RL ■ Chloromethane RL RL RL RL RL RL Vinyl Chloride RL RL RL RL RL -RL.; <■ 1,3-Butadiene RL RL RL RL RL . RL Bromomethane RL RL RL RL RL .RL Chloroethane RL RL RL RL RL RL T richlorofluoromethane RL RL RL RL RL RL Isopropyl Alcohol RL RL RL RL RL , RL 7 : Acetone RL RL RL RL RL . RL - Trichlorotrifluoroethane RL RL . RL RL RL - -RL - 1.1-Dichloroethene RL RL RL RL RL RL • 3-ChloroprDpene RL RL RL RL RL RL Methylene Chloride RL RL RL RL RL . RL MTBE RL RL RL RL RL RL trans-1,2-Dichloroethene RL RL RL RL RL ' -RL Hexane RL RL RL RL RL RL l.t-Dichloroethane______ RL RL RL RL RL RL Vinyl Acetate RL RL RL RL RL RL 2-Butanone__________ RL RL RL RL RL RL ,2-Dichtoroethene RL RL RL RL RL RL Acetate RL RL RL RL RL .. RL : Chloroform RL RL RL RL RL RL . Tetrahydrofuran RL RL RL RL RL RL = 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-Dioxana RL RL RL RL _RL__ . RL Methyl Isobutyl Ketone RL RL RL RL RL RL -BL. RL RL RL cis-1,3-Dichloropropene Toluene RL RL RL RL RL RL _5L___ 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 RL RL RL RL Chlorobenzene RL RL RL RL RL RL Ethylbenzene RL RL RL RL RL RL m&p-Xylenes RL RL RL RL RL RL _ 0-Xylene RL RL RL RL RL RL Styrene RL RL RL RL RL RL Bromoform RL RL RL RL RL 1,1,2,2-Tetrachloroethane RL RL RL RL _5L RL RL RL 4-Ethyltoluene lUlhTrimethylbenzene RL RL RL RL _SL_ RL RL RL RL RL ^MFrimethylbenzene RL RL 129bichlorobenzene RL RL RL RL _5L_ RL RL 1,4-Dichlorobenzene RL RL _5k_ RL RL RL RL RL Benzyl Chloride RL RL RL RL RL RL 1,2-Dichlorobenzene RL RL _RL _2L_ _RL_ _5t__ 1,2,4-Trichlorobenzene Hexachloro-1,3-Butadiene RL RL _5L_ _5L_ RL RL RL RL RL RL RL RL

CITY_21MC100_002961872

NYC-WTC_000186600