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NYC-WTC_000229688

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000229688–000229703
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NYC 9/11 Public Portal Document ’; 1 £ : JU.'M, L.OW uepor mien t .1^1^3010,00 s 5>5> JflN-22-2002 09:49 OSEP UNIT RM. 7345 202 324 9235 P.09x43 Industrial Hygiene Survey Federal Bureau of Investigaiion, Staten Island, NY

collected at a flow rate of 1.7 Ipm. The PVC cassettes were prepared and analyzed gravimetricaliy by Galsoh Laboratory. The samples, were analyzed by NIOSH method 0600/7500. The respirable dust samples were also analyzed for crystalline silica including I quartz, cristobalite, and tridymite. Results are reported in milligrams per cubic meter.

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NYC-WTC_000229695

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NYC-WTC_000229695Source: NYC Law Department, mirrored locally

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