Draft WTC Air Analysis Results, Feb 10, 2002

NYC 9/11 Public Portal Document , __ , ■ ...----■I .- - - -

■ ‘'9' • 9' 2-Y NO QC EVALUATION HAS BEEN PERFORMED. ' DATA VAUDITY IS UNSUBSTANTIATED Y'Y. ■ ■ ' AND THE DATA SHOULD BE USED WITH DISCRETION WTC TEDLAR BAG AIR ANALYSIS, TO-15 MODIFIED METHOD DRAFT GfVMS Results for 02710/02

File Name NYC1014 NYC1015 NYC1016 NYC1017 NYC1020 NYC1018 ? i Sample Location Instrument Blank Tedlar Bag Blank Washing Tent Austin Tobin Plaza North Tower South Tower''. Ambient Air Plume Sample Number_______ A07453 A07454 A07456 Afl7455 ? " Sample Height________ Breathing Level . Breathing Level Ground Level Ground Level i. Sample Volume________ 250 mL 250 mL . 250 mL 250 mL 250 mL ■ ' \ Reporting Limit (RL) 20 20 2p 20 20 20 Sample Cone. Units "PP^~ PP^ ppp; PPIJv ppp; Propylene____________ RL RL RL RL RL 160 i Chlorodifluoromethane RL RL RL RL RL 410 ''.iO Dichlorodifluoromethane RL RL RL RL RL 340 •" "2 RL RL RL RL RL -Y- Dichlorotetrafluoroethane _RL Chloromethane________ RL RL RL RL RL RL Vinyl Chloride_________ 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 Trichlorofluoromethane RL RL RL RL 220 Isopropyl Alcohol_______ RL RL _J5k_ RL RL RL Acetone_____________ RL RL RL RL 160 - . Trichlorolrifluoroethane RL RL RL RL RL •' Y . l,t-Dichloroethene_____ RL RL RL RL RL 24i - 3-Chloropropene _______ RL BL RL RL RLl ■ Methylene Chloride RL RL RL RL RL 280 MTBE RL RL RL 24 RL 3100 trans-l ,2-Dichloroelhene RL RL RL RL RL rl' , Hexane RL RL RL, RL RL 140 1,1-Dichloroethane RL RL RL RL RL RL Vinyl Acetate__________ RL RL RL RL RL RL 2-Butanone___________ RL RL RL RL RL RL cis-1,2-Dlchloroelhene RL RL RL RL RL - ' Ethyl 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 240 Carbon Tetrachloride RL RL —SL. RL RL RL ■ ■■

1.2-Dlchloroethane RL RL RL RL RL Benzene RL RL RL RL RL RL_______ Heptane RL RL RL RL RL 42________ 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 78_______ ttans-1,3-Dlchloropropene RL RL RL RL 1,1,2-Trichloroethane RL RL _5L RL RL 2-Hexanone RL RL RL RL RL RL_______ Tetrachloroethene RL RL RL RL RL 140 Dibromochloromethane RL RL RL RL RL RL_______ 1,2-Dibromoethane RL RL RL RL _RL_______ Chlorobenzene RL RL _5t_ RL RL RL_______ Ethylbenzene RL RL RL RL RL RL m&p-Xylenes RL RL RL RL RL 55_______ 0-Xylene RL RL RL RL 33 Styrene RL RL RL RL RL Bromoform RL RL RL RL RL RL_______ 1,1,2,2-Tetrachloroethane RL RL RL RL RL RL 4-Ethyltoluene_________ RL RL RL RL _RL_______ 1.3,5-Trimethylbenzene RL RL RL RL RL 21 1.2,4-Trimethylbenzene RL RL RL RL RL -Rk— 1.3-Dichlorobenzene RL RL -RL- RL RL RL 1.4-Dichlorobenzen9 RL RL RL RL RL Benzyl Chloride RL RL RL RL 31______ _ 1,2-Dichlorobenzene RL RL RL RL 1.2.4-Triehlorobenzene RL _5L. RL_______ RL RL RL RL Hexachloro-1.3-Butadiene RL RL RL RL RL RL

CITY_21MC1OO_OO2961849

NYC-WTC_000186596