< Indicates less than the limit of quantification
70 structures/mm’ = AHERA re-occupancy
criteria lor school children
NQCS = No quality control sample taken
(1) Analyst was unable to quantify fiber
concentration because of overloading of
particulate matter on the finer
(2) Moderate to heavy particulate matter is
present on the fitter which may obscure some
fibers causing results with a low bias.
O
K
I
o
I
o
Crt
CO
Crt
Page 12 of 12
TRC
Customer'Focused Solutions
CO
NYC-WTC_000174326
OCR can misread numbers and units. Confirm readings against the page image before using them.
NYC-WTC_000174326Source: NYC Law Department, mirrored locally
57-page lab report documenting World Trade Center environmental test results distributed to multiple federal, state, and local agencies including CDC and EPA.
57-page lab report documenting World Trade Center environmental test results distributed to multiple federal, state, and local agencies including CDC and EPA.