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Document / 21 pages

Ambient Dust Sampling Protocol Near WTC, Oct 2001

Machine-extracted title · confidence 95%

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

NYC-WTC_000153258–000153278
←Page 15 of 21→
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NYC 9/11 Public Portal Document

***WRAFT Version 10, October 29, 2001****

Yes No

If YES, describe (include location(s))

6. Is dust still present? Yes No

If YES, describe (include location(s))

7. Is there a building-wide HVAC system (as opposed to each apartment having separate systems)? Yes No

If YES, has the HVAC system been used since the WTC event? Yes No

Has the HVAC system been service or cleaned since the WTC event? Yes No

Has the system been recirculating air or drawing from the outside? If recirculating, what %T5r3irWas recirculated?

What type of filter(s) are in the system (describe)? Name(s) Size(s) Type(s)

What was the date of the last filter change (or range of dates if multiple units involved)?

Have the ducts been cleaned since the WTC event? Yes No TTYES, proving date(s) of cleaning

8. During this air and dust sampling, was there:

Foot traffic (people leaving/entering the common spaces being tested) Yes No

Likely cigarette or other tobacco smoking Yes No

Cleaning or vacuuming

Page 15 of

NYC-WTC_000153272

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NYC-WTC_000153272Source: NYC Law Department, mirrored locally

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