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Residential sampling protocol, World Trade Center, Oct 2001

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Sampling protocol developed to assess residential exposure to airborne and settled dust near the World Trade Center.

NYC-WTC_000178091–000178127
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NYC 9/11 Public Portal Document

[wtc residentiai plan octTs'wpd Page 20 j

.5 i !

Use of candles, incense, etc. _Yes __ No

Open windows _Yes __ No I Open doors _Yes __ No Turn off the heating/AC system fan (it should be on during the entire sampling period) ii __ Yes __ No If YES, what time did you turn off the system

9. Have you seen evidence of dust being tracked into the building since the WTC collapse? I __ Yes __ No If YES, name/describe the entrj'way locations

Describe the material being tracked indoors J

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

20

CITY_21MC100_013489442 NYC-WTC_000178108

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NYC-WTC_000178108Source: NYC Law Department, mirrored locally

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