NYC-WTC_000232818

NYC 9/11 Public Portal Document

US Department of Labor - OSHA WTC Cleanup Sampling Activity Summary including Area, and Personal samples Only

Date ofSampling up to : 2/21/2003

Total # ofIndividual Sample Submitted: 402 (based on unique Lab # count)

Total # ofIndividual Analyte Type Sampled: 19 (excluding the qualitative analyses)

Total # ofIndividual Analyses: 1968 Note: This report but does not include 86 bulk samples^ 340 blank samples^ or 75 wipe samples

#of Highest Average By Analyte Individual Individual Individual Analyte Description Analysis Sampling Result Sampling Result Antimony and Compounds (as Sb) 76 0 0 Asbestos (all forms) 287 0 0 Beryllium and Beryllium Compounds (as Be) 76 0 0 Cadmium 76 0 0 Chromium, Metal and Insoluble Salts 76 0 0 Cobalt, Metal, Dust and Fume (as Co) 76 0 0 Copper Fume (as Cu) 76 0.00452 5.9E-05 Fibrous Glass Dust 287 0.22 0.00126 Gravimetric Determination 79 55.8196 0.94719 Iron Oxide Fume 76 0.06412 0.00084 Lead, Inorganic (as Pb) 76 0 0 Manganese Fume (as Mn) 76 0 0 O Molybdenum (as Mo), Insoluble Compounds (Total Dust) ~7^ 0 0 H Nickel, Metal and Insoluble compounds (as Ni) 76 0 0 Particulates not otherwise regulated (Total Dust) 4 0.6088 0.32075 Silica, Crystalline Quartz, Respirable Dust 36 0 0 S o Total Fibers 0.3 0.04237 o Vanadium fume (as V2O5) 76 0 0 o I Zinc Oxide Fume 76 0 0 o

o Thursday, April 15, 2004 WTCCleanup040403rev. mdb Page 1 of 1 o co

NYC-WTC_000232818