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NYC-WTC_000199556

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NYC 9/11 Public Portal Document Jeanine Prudhomme - RA sitrep0i4-T07wpd Page'?;!

o Particulate levels noted at Locations L, N, and R were below the OSHA TWA. o Instruments operated approximately 8 hours. o Station L had an average of 25.97 ug/m’ with a maximum reading of 227.01 ug/m\ o Station N had an average of 25.35 ug/m^with a maximum reading of 73.99 ug/m’. o Station R had an average of 26.93 ug/m’ with a maximum reading of 46.12 ug/mL

® NYC / ER (Apr 9) - Volatile Organics (Mobile Laboratory)

o Volatile organic compounds were not detected above the detection limit (20 ppbv) in any of the four samples collected (Washing Tent, Austin Tobin Plaza, North Tower, and South Tower).

CITY_21MC100_008970732

NYC-WTC_000199558

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NYC-WTC_000199558Source: NYC Law Department, mirrored locally

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