Industrial hygiene air monitoring results, NYC Education Dept, Sep 2001

NYC 9/11 Public Portal Document iTUg JU u^: ua: i oa r ijL. tJ i U - 3 c: 1 - 5JOO / H > 1 o

INDUSTRIAL HYGIENE ENVIRONMENTAL TESTING FSC •NJDEPPA02!) ■ EP/WLAP101262-0 •NY DOHiNELAC 10803 ■AIHAACCREDITATIONNO. 100439 • PA DEP 06-353 • CT DPH PH-0233 •NCDENR 599 Analytical Results for ATC Associates WorkOrder: R02080731 Client Reference: 19125-0346

Analyte Concentration Limit of Test Date Analyzed Detection Method /Analyst (ug) (mg/m’) ; (ppm) (ug)

Client ID: ATC-0822-B1M-VOC4 Lab ID: -04A Date Sampled; 8/22/02 Matrix: Charcoal AirVol.(L): NA

1,1,1-Trichloroethane <20 20 OSHA 7 08/26/2002 JLS 1,2-Dichloroethane <20 20 OSHA 7 08/26/2002 JLS A Hydrocarbons, Total <20 20 OSHA 7 08/26/2002 JLS Acetone <20 20 OSHA 7 08/26/2002 JLS B Hydrocarbons, Total <20 20 OSHA 7 08/26/2002 JLS Benzene <20 20 OSHA 7 08/26/2002 JLS Chlorobenzena <20 20 OSHA 7 08/26/2002 JLS Chloroform <20 20 OSHA 7 08/26/2002 JLS ethylbenzene <20 20 OSHA 7 08/26/2002 JLS Hexane <20 20 OSHA 7 08/26/2002 JLS Isopropylbenzene <20 20 OSHA 7 08/26/2002 JLS Methylene Chloride <20 20 OSHA 7 08/26/2002 JLS Pentane <20 20 OSHA 7 08/26/2002 JLS Styrene <20 20 OSHA 7 08/26/2002 JLS Tetrachloroethene <20 20 OSHA 7 08/26/2002 JLS Toluene <20 20 OSHA 7 08/26/2002 JLS Trichloroethene <20 20 OSHA 7 08/26/2002 JLS Xylenes, Total <20 20 OSHA 7 06/26/2002 JLS

(a) Analysis indicates possible breakthrough; back section result is greater than % of the front section result.

General Notes: <: Less than the indicated limit of detection (LOD). Information not available or not applicable. Back sections were checked and showed no significant breakthrough.

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CONFIDENTIAL, CITY_21MC100_003430900 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

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