NYC 9/11 Public Portal Document
t AyC doh - Fact Sheet for Cleaning Homes Near the World Trade Center
Page 1 of 3
New York City Department of Health
Responds to the World Trade Center Disaster
INFORMATION FOR RESIDENTS OF LOWER
MANHATTAN
As part of an ongoing effort to assess the impact of the World Trade Center (WTC) disaster, the New
York City Department of Health (DOH) in collaboration with federal authorities conducted tests of air
quality in 30 residential buildings in lower Manhattan.
A total of 117 air samples were taken in 30 buildings in lower Manhattan and analyzed for airborne
fibers. Samples were taken inside residences, in common areas within residential buildings, and outside
of the buildings. The tests examined samples of both air and dust. The air samples from inside the
buildings showed no elevated levels of asbestos. The air sampling results for fibrous glass (fiberglass)
are not yet available. The dust showed low levels of asbestos in some samples and the presence of
fiberglass in other samples. The potential for exposure to these materials depends not only on their
concentration in the dust but also on the amount of dust that is present. Asbestos and fiberglass can pose
a health risk if dust accumulates and particles become airborne. While these findings are not unexpected,
they underscore the importance of proper cleaning to reduce dust.
The analysis of 98 dust samples for asbestos taken from the inside and outside of residential buildings in
lower Manhattan indicated that while 20% were above background levels, only two samples which were
taken from outdoors required abatement. Professional abatement work was completed in these areas.
Samples taken from inside and outside of residential buildings in lower Manhattan were also analyzed
for fibrous glass. Fibrous glass was detected in 43 of the 98 dust samples taken. The results of air
sampling for fibrous glass, and for air and surface testing of other materials, are not yet available.
DOH is holding community meetings in association with Manhattan Commimity Board No. 1 to discuss
the findings of this study and to address the concerns of lower Manhattan residents. Meetings will be
held next Tuesday and Wednesday, February 12th and 13th from 6:30 to 7:45 P.M. Tuesday’s
meeting will take place at the Battery Park City Community Room, 21 South End Avenue (behind
Gristedes supermarket) in lower Manhattan; Wednesday’s meeting will be held at 40 Worth Street
in lower Manhattan. Any residents of lower Manhattan who would like to arrange additional meetings
with DOH officials through their tenant or other community organizations should contact DOH at (212)
341-9810.
Because work continues at the WTC site, these findings reinforce the importance of following
recommendations for cleaning in and around the home:
• Clean frequently to reduee dust.
NYC-WTC_000149210
OCR can misread numbers and units. Confirm readings against the page image before using them.