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Document / 21 pages

Ambient dust sampling protocol for residential areas, Oct 2001

Machine-extracted title · confidence 95%

Draft protocol outlining objectives and locations for assessing airborne and settled dust exposures in residential areas.

NYC-WTC_000153220–000153240
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NYC 9/11 Public Portal Document

****DRAFT Version 10, October 29, 2001****

Yes No Tfyes, descilBS'

Use of candles, incense, etc. Yes No

Open windows Yes No

Open doors f Yes No

Turn off the heating/AC system fan (it should be on during the entire sampling period) Yes No TTYES, whaTfflne did you turn off the system

9. Have you seen evidence of dust being tracked into the building since the WTC collapse? Yes No TTYES, naniSMescribe the entryway locations

Describe the material being tracked indoors

Is the material still being tracked indoors? Yes No Can’t tell

10. Has the exterior of the building been cleaned since WTC event? Yes No

11. If YES to Question 10, Date(s) of cleaning

12. Description of cleaning sweeping vacuuming Water spray high pressure wash Other (describe)

13. Who conducted the cleaning Building maintenance Cleaning company (provide name) Other (describe)

14. Was visible dust present? Yes No

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NYC-WTC_000153235

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NYC-WTC_000153235Source: NYC Law Department, mirrored locally

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NYC-WTC_000153258 · Box DEP Box 26

Draft protocol for assessing airborne and settled dust exposures in residential areas following the World Trade Center collapse.

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