The U.S. and NYC standard for asbestos in community and residential
buildings is 0.01 fibers/cubic centimeter (f/cc) in indoor air. DEP is
augmenting asbestos sampling being done by USEPA and other state and
city agencies.
Results indicate that, as expected, asbestos is present in some of the debris at
the site and in areas very close to the site. As of September 28, 2001, most
air sampling results outside the security zone were below the standards for
asbestos in indoor air.
As testing continues, there may be the possibility of occasional short-term
increases in levels of asbestos in the air above the residential standard of
0/01 fibers per cubic centimeter of air. When the measured level for the
outdoor ambient air is above .01 f/cc, the samples are being further analyzed
to determine how many of the fibers are actually asbestos fibers.
NYC-WTC_000149440
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000149440Source: NYC Law Department, mirrored locally