NYC 9/11 Public Portal Document
Lnvlronmental Microbiology Laboratory, Inc.
1800 Sullivan Ave., Suite 209, Daly City, CA 94015
(650) 991-3436 Fax (650) 991-2243 www.emlab.com
Client: Laurence B. Molloy, LLC Date of Sampling: 09-26-2001
CIO: Mr. Laurence Molloy Date of Receipt: 10-04-2001
Re: 100 Williams St., Manhattan Date of Report: 10-15-2001
OTHER BIOLOGICAL PARTICLES REPORT: NON CULTURABLE METHODOLOGY
INSTRUMENT USED: Zefon Air-O-Cell volumetric air sampler
Location: 664463: 664422:
Twentieth floor Twenty-First floor
raw ct. particles/m3 raw ct. particles/m3
POLLEN:
Acacia, etc.
Alder (Alnus)
Ash (Fraxinus)
Birch (Betula)
Cedar/Juniper (Cupressaceae)
Chenopods (Chenopodiaceae)
Elm (Ulmus)
Eucalyptus, etc.
Grass (Poaceac)
Mulberry (Morus)
Oak (Quercus)
Other pollen
Pine, etc. (Pinaceae)
Poplar, cottonwood (Populus)
Ragweed, etc. (Asteraceae)
Sycamore (Platanus)
OTHER PLANT:
Algae
Diatoms
Fern, moss, etc. spores
Other (wood, trichomes, etc.)
OTHER ANIMAL:
Epithelial (skin) cells 279 1,860 466 3,107
Hair
Insect parts
Mites
Nematodes
OTHER FUNGI.
Hyphal fragments 2 13
NONBIOLOGICAL:
Fiberglass 4 27 7 47
Background debris ( -4+)t 3+ 3+
Sample volume (liters) 150 150
TOTAL PARTICLES/M3 1,8871
3,167
Interpretation is left to the company and/or persons who conducted the field work.
t Background debris is an indication of the amounts of non biological particulate matter present on the slide (dust in the air)
and is graded from I + to 4+ with 4+ indicating the largest amounts. To evaluate dust levels it is important to account for
differences in sample volume.
EML ID: 21006; Page 6 of 6
NYC-WTC 000131033
OCR can misread numbers and units. Confirm readings against the page image before using them.