Date:
December
21,
2004
From:
Thomas
Holloway
Subject:
Additional
Toxics
Release
Inventory
Data
for
One
Magnetic
Tape
Manufacturing
Facility
To:
Project
Files
The
hazardous
air
pollutant
(
HAP)
emission
estimates
used
in
the
residual
risk
analysis
for
the
magnetic
tape
manufacturing
industry
are
based
partly
on
HAP
emissions
data
from
the
Toxics
Release
Inventory
(
TRI)
data
base.
These
data
were
presented
in
a
previous
memorandum.
1
This
memorandum
presents
additional
emissions
data
for
one
HAP
(
acrylic
acid),
which
were
inadvertently
omitted
from
the
emissions
data
summary
table
in
the
previous
memorandum.
(
However,
they
were
included
in
the
memorandum's
TRI
data
printouts.
1)
The
emissions
data
for
acrylic
acid
should
have
been
included
with
the
data
for
one
facility
(
3M
Magnetic
Tape
Manufacturing
Division),
which
manufactures
a
number
of
products,
including
magnetic
tape.
Table
1
summarizes
the
HAP
emissions
data
for
acrylic
acid
in
pounds
per
year
(
lb/
yr)
for
the
year
2000,
which
was
the
latest
year
reported
in
the
previous
memorandum.

Table
1.
2000
TRI
Emissions
Data
for
Acrylic
Acid
for
3M
Magnetic
Tape
Manufacturing
Division
(
lb/
yr)

Facility
name
Stack
Fugitive
Total
3M
Magnetic
Tape
Manufacturing
Division
14,000
800
14,800
Based
on
established
information
about
the
magnetic
tape
industry,
acrylic
acid
is
not
emitted
from
magnetic
tape
operations.
2
Based
on
information
from
3M,
only
28
to
30
percent
of
emissions
from
the
3M
facility
are
associated
with
magnetic
tape,
so
it
is
very
likely
that
this
HAP,
like
several
others
(
e.
g.,
antimony,
hexane,
and
lead),
is
emitted
from
a
co­
located
operation
at
3M
which
makes
a
different
product.

References
1.
Memorandum
from
Holloway,
T.,
RTI,
to
project
files.
January
3,
2003.
Toxics
Release
Inventory
Data
for
Magnetic
Tape
Manufacturing
Facilities.

2.
U.
S.
Environmental
Protection
Agency.
Hazardous
Air
Pollutant
Emissions
from
Magnetic
Tape
Manufacturing
Operations
 
Background
Information
for
Proposed
Standards.
Research
Triangle
Park,
NC.
EPA­
453/
R­
93­
059.
December
1993.
