Document 15xRjqpGxDQ7Or0LLry1eQZ1X
FILE NAME Brakes BRK
DATE 1969 Oct
DOC BRK029
DOCUMENT DESCRIPTION Excerpt - Dept of Health Lit Review - Preliminary Air Pollution Survey of Asbestos
dips, tiv
i
PRELIMINARY
AIR POLLUTION SURVEY
-
toy
ASBESTOS
me,
ra
A LITERATURE REVIEW
ad
i as a basis for
administration
owledge of the
ge
reement with
;
| Industries as
Conclusions
s reported by
Conclusions
ry
a
Ralph J. Sullivan
Yanis C. Athanassiadis
Litton Systems Incorporated Environmental Systems Division
.
Prepared under Contract No. PH 22-68-25
.
we
U.S. DEPARTMENT OF HEALTH EDUCATION AND WELFARE
Public Health Service Consumer Protection and Environmental Health Service
National Air Pollution Control Administration
Raleigh North Carolina
October 1969
1/18/23 4 1/18/23
1/18/23 1/18/23
1/18/23
4
1/18/23 by
110
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trey
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ps
32
applied as mortar or plaster or sprayed on walls insulating
materials for the covering of pipes ducts boilers cables
and conduits siding shingles roofing shingles tiles flat
and corrugated sheets wallboard clapboard and automobile
undercoating threads yarns wicks cords tapes cloths
sheets and blankets friction materials brake linings facings gaskets and lagging cloths and asphalt tiles
clutch
,
plastics and similar materials
eel
Abrasion of brake linings and
clutch
facings
has
been
suggested as a primary source of asbestos air pollution
Ayer
and
145
Lynch
have
examined
the
emissions
from brakes
on
automobiles and found that the fiber is destroyed by the heat
of friction Asbestos crystalline structures are also destroyed
and are recognizable only by the chemical composition
Newhouse and Thompson have reported one case of mesothelioma
a mechanic
in
The existence of a wide potential for direct or in-
as 4,
has been cited 32,34,108,120 a
direct occupational exposure
a
possible explanation for the frequent occurrence of asbestos
eon
bodies in the general public Asbestos is now used in more
bit
edei
than 3,000 products Most people working in the construction
stbanie into Rss
and demolition of buildings come
contact with asbestos
.
Electricians and homeowners strip asbestos insulation off wires
the carpenter saws asbestos boards and often pounds the asbestos-
insulated furnace ducts to make them fit As a result the air
around a construction site is contaminated with asbestos fibers