NYC-WTC_000205497

NYC 9/11 Public Portal Document

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

From 4/22/2002 To 4/28/2002 ; sorted by severity

Date Sample ANALYTE TASK/ Sampled LABO Submission# DESCRIPTION Type Area Location OPERAUON Description TIME UOM RESULT TWA SEVERITY

AI23IQ2 DI5652 W8644 Silica, Crystalline P NORTHWEST TURNER 240 X 0 0.083 0.0168104 Quartz, Respirable Dust 4/23/02 D15653 W9015 Silica. Crystalline P NORTHWEST TURNER 204 X 0 0.083 0.0166104 Quartz, Respirable Dust 4/22/02 PI 9220 W8925 Silica, Crystalline A SOUTHEAST TULLY AREA 419 X 0 0.036 0.0071613 Quartz, Respirable Dust 4/22/02 P19215 W9021 Silica, Crystalline A SOUTHEAST TULLY AREA SAMPLE 1/9 Line 418 X 0 0.035 0.0069537 B Quartz, Respirable Dust 4/22/02 P19216 W8938 Silica, Crystalline Quartz, Respirable A SOUTHEAST TULLY AREA SAMPLE 422 X 0 0.032 0.0064323 I Dust 4/22/02 P19279 0422FR02 Hydrogen Chloride P NORTHWEST TURNER NY FIRE 475 P 0.015 0.015 0.003 DEPARTMENT I 4/22/02 DI5642 0422-RT2 Manganese Fume (as P SOUTHEAST TULLY 420 M 0.0080561 0.0081 0.0016112 Mn) .5

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NYC-WTC_000205498