NYC-WTC_000205493

NYC 9/11 Public Portal Document

US Department of Labor/OSHA WTC Air Sampling Activity All sampling data with severity >0 excluding all blanks (Ittcluiling Area and Personal Samples only)

From 4/J5/2002 To 4/21/2002 ; sorted by severUy

Date Sample ANALYTE TASK/ Sampled LAB# Submission# DESCRIPTION Type Area Locatian OPERATION Description TIME UOM RESULT TWA SEVERITY

4/16/02 P18977 0416KF02 Hydrogen Chloride P NORTHWEST TURNER NY FIRE FDNY, raking 504 P 0.049 0.049 0.0098 DEPARTMENT spreadout debris south of bldg. 6 pile. 4/21/02 P19213 W8933 Silica, Crystalline A NORTHWEST TURNER AREA SAMPLE 514 X 0 0.034 0.0068666 Quartz, Respirable Dust 4/21/02 015567 W8715 Silica, Crystalline A OTHER WTC 467 X 0 0.032 0.0063920 Quartz, Respirable Dust 4/15/02 P18984 W6035 Silica, Crystalline A SOUTHEAST TULLY AREA SAMPLE Tully, AREA, 475 % 0 0.03 0.0060819 Quartz, Respirable maintenance Dust area so of pump A east side of pit. 4/20/02 015573 W8711 Silica, Crystalline A MOYNIHAN MAUREE 425 X 0 0.021 0.0042105 Quartz, Respirable Dust 4/16/02 PI 8977 0416KF02 Nitric Acid P NORTHWEST TURNER NY FIRE FDNY, raking 504 P 0.008 0.008 0.004 DEPARTMENT spreadout debris south of bldg. 6 pile. 4/21/02 PI 9208 W8905 Silica, Crystalline A NORTHWEST TURNER AREA SAMPLE 513 X 0 0.015 0.0030323 Quartz, Respirable Dust 4/16/02 PI8976 0416KF01 Nitric Acid P NORTHWEST TURNER NY FIRE FDNY, raking 477 P 0.006 0.006 0.003 DEPARTMENT debris south of Bldg.6 pile. 4/16/02 PI8976 0416KF01 Hydrogen Chloride P NORTHWEST TURNER NY FIRE FDNY, raking 477 P 0.009 0.009 0.0018 DEPARTMENT debris south of Bldg.6 pile. 4/16/02 PI 8976 O416KF01 Hydrogen Bromide P NORTHWEST TURNER NY FIRE FDNY, raking 477 P 0.001 0.001 0.0003333 o DEPARTMENT debris south of H Bldg.6 pile.

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NYC-WTC_000205496