13 shared non-person entities · 1 shared topics · similarity 0.950
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NYC-WTC_000199683
Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000199683–000199690Page image
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OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
Sampling Strategy • Initial strategy established by NIOSH and continued by Bechtel and ATC. • Liberty Mutual / ATC modified strategy due to changing work conditions, initiated a job-specific focus.
Sampling Strategy (Continued) • In addition to exposing agents previously being measured, the following « ere added: - Acid Gases - potential breakdown products of Freon - H2S and SO2 - in response to odors in the southwest comer of the site. ,• - Noise - mostly from concrete demolition - Mercury - in response to concents expressed by Uniformed Services
Sampling Strategy (Continued) • Current plan calls for taking about 90 eight hour TWA measurements per week. In addition, real-time measurements are ' being made for hydrogen sulfide, carbon monoxide, dust, and noise.
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CITY_21MC100_003051030
NYC-WTC_000199686
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NYC-WTC_000199686Source: NYC Law Department, mirrored locally
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