Document ID: EPA-HQ-OAR-2003-0053-0134
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2004-01-29T05:00Z

Eight­
Site
SA
Speciation
Trends
Final
Report
September
24,
2003
APPENDIX
D:

GRAPHICAL
REPRESENTATION
OF
THE
SOURCE
APPORTIONMENT
RESULTS
FOR
BIRMINGHAM,
ALABAMA
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
1
September
24,
2003
Appendix
D:
Graphical
Representation
of
the
Source
Apportionment
Results
for
Birmingham,
Alabama
This
appendix
shows
a
series
of
nine
plots
for
each
source
indicated
by
the
PMF
model
for
Birmingham,
Alabama.
These
plots
are
used
to
help
identify
the
sources
by
understanding
some
of
the
characteristics
of
the
sources.
The
plots
included
for
each
source
are:

1.
The
source
profile
plot.
2.
The
time
series
of
the
source
strength.
3.
Bar
charts
of
the
source
strength
for
various
categories.
4.
The
source
pollution
rose.
5.
The
source
region(
s)
as
indicated
by
the
source
contribution
function.
6.
The
source
region(
s)
as
indicated
by
the
incremental
probability
function.
7.
Back
trajectories
color
coded
by
source
strength.
8.
Scatter
plots
of
the
source
strength
versus
ambient
temperature
for
each
season
and
scatter
plots
of
the
source
strength
versus
ambient
pressure.

The
profile
plot
shows
the
relative
composition
of
the
source
(
bars
with
the
scale
on
the
left)
and
the
percent
of
the
total
species
mass
observed
at
the
receptor
attributed
to
the
source
(
line
with
the
scale
on
the
right).
The
relative
chemical
composition
is
the
main
basis
for
the
source
identifications.
Generally,
the
other
plots
are
used
to
refine
or
confirm
the
identification
made
from
this
first
plot.

The
time
series
plot
shows
the
source
strength
as
a
function
of
time.
Two
scales
are
shown.
On
the
left
is
the

VRXUFH

VWUHQJWK

LQ

J

P3
and
on
the
right
is
the
relative
source
strength,
which
is
the
daily
source
strength
divided
by
the
mean
source
strength.
The
latter
is
the
direct
output
from
the
PMF
model
and
can
be
used
to
compare
events
among
sources.

The
bar
charts
show
the
mean
source
strength
when
stratified
by
wind
speed
(
including
calm
periods),
weekday/
weekend,
and
season
(
winter
is
December,
January,
and
February).
Each
of
these
plots
provides
supplemental
information
for
identifying
the
source.

The
pollution
rose
shows
the
mean
source
strength
by
wind
sector
and
wind
speed
category.
These
plots
can
indicate
the
source
location
for
local
sources.
Winds
less
than
1
mph
are
not
used
in
generating
this
plot,
since
the
wind
direction
is
not
always
clear
for
low
winds.
These
periods
are
indicated
in
the
bar
charts.

The
next
two
plots
are
the
source
regions
as
indicated
by
either
the
source
contribution
function
(
the
probability
of
a
high
source
day
given
that
the
back
trajectory
passes
over
the
grid
point)
or
the
incremental
probability
function
(
the
probability
that
source
strength
is
high
and
the
back
trajectory
passes
over
the
grid
point
minus
the
probability
that
the
back
trajectory
passes
over
the
grid
point).
High
and
low
days
are
defined
as
above.
To
minimize
the
effects
of
having
too
few
trajectories
within
a
grid
cell,
the
plots
for
the
source
contribution
function
are
of
a
lower
bound
for
a
90
percent
confidence
interval
for
the
probability
of
a
high
day.
Hence,
only
the
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
2
September
24,
2003
areas
that
have
a
probability
that
is
significantly
above
20
percent
are
plotted.
For
the
incremental
probability
plot,
this
same
effect
is
avoided
by
dividing
the
incremental
probability
by
its
standard
error
and
plotting
the
regions
that
are
at
least
1
standard
error
away
from
zero
(
in
either
direction).
These
modifications
to
the
usual
source
contribution
function
and
the
incremental
probability
make
it
easier
to
compare
the
plots
and
the
numerical
values
among
different
sources.

The
back
trajectory
plots
are
color
coded
by
source
strength.
The
low
source
strength
days
are
blue
and
represent
the
lowest
20
percent
of
the
source
strengths.
The
high
source
days
are
red
and
represent
the
highest
20
percent
of
the
source
strengths.
The
remainder
of
the
back
trajectories
are
plotted
in
green.
These
can
give
some
indication
of
source
region,
but
are
usually
too
messy
for
that
purpose.
The
main
use
for
these
plots
is
as
noted
above;
they
show
when
the
effects
of
high
pressure
systems
play
a
significant
role
in
the
source
strength.

The
first
set
of
scatter
plots
shows
any
relationship
between
ambient
temperature
and
the
source
strength.
The
plots
are
separated
by
season
to
keep
extreme
observations
from
dominating
the
relationship.
Underneath
these
plots
is
a
scatter
plot
that
shows
any
relationship
between
local
ambient
pressure
and
the
source
strength.
Very
few
sources
show
a
relationship
since
source
activity
is
rarely
related
to
pressure.
The
source
strength
are
more
often
modulated
by
the
concentrating
effects
of
high
pressure
systems
located
tangent
to
the
site.
These
should
be
compared
to
the
back
trajectories
for
high
source
days
(
the
previous
plot).
The
back
trajectories
around
high
pressure
systems
will
be
clockwise
ending
at
the
receptor.
Generally,
the
other
source
strength
plots,
in
particular
the
remaining
back
trajectory
source
region
plots,
need
to
be
discounted
for
this
effect
when
it
is
present.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
3
September
24,
2003
Figure
D­
1.
Profile
Plot
(
Top),
Time
Series
Plot
(
Middle),
and
Bar
Charts
of
the
Source
Strength
Averaged
by
Wind
Speed,
Day
of
Week,
and
Season
(
Bottom)
for
Birmingham,
Alabama,
Source
1
­
Ammonium
Nitrate.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
4
September
24,
2003
Figure
D­
2.
Pollution
Rose
for
Birmingham,
Alabama,
Source
1
­
Ammonium
Nitrate.

Figure
D­
3
Source
Contribution
Contour
Plot
for
Birmingham,
Alabama,
Source
1
­
Ammonium
Nitrate.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
5
September
24,
2003
Figure
D­
4
Incremental
Probability
Contour
Plot
for
Birmingham,
Alabama,
Source
1
­
Ammonium
Nitrate.

Figure
D­
5
Back
Trajectories
Color
Coded
by
Source
Strength
Category
for
Birmingham,
Alabama,
Source
1
­
Ammonium
Nitrate.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
6
September
24,
2003
Figure
D­
6
Scatter
Plot
of
Source
Strength
Versus
Mean
Daily
Temperature(
Rows
1
and
2)
and
Pressure
(
bottom)
for
Birmingham,
Alabama,
Source
1
­
Ammonium
Nitrate.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
7
September
24,
2003
Figure
D­
7.
Profile
Plot
(
Top),
Time
Series
Plot
(
Middle),
and
Bar
Charts
of
the
Source
Strength
Averaged
by
Wind
Speed,
Day
of
Week,
and
Season
(
Bottom)
for
Birmingham,
Alabama,
Source
2
­
Crustal.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
8
September
24,
2003
Figure
D­
8
Pollution
Rose
for
Birmingham,
Alabama,
Source
2
­
Crustal.

Figure
D­
9
Source
Contribution
Contour
Plot
for
Birmingham,
Alabama,
Source
2
­
Crustal.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
9
September
24,
2003
Figure
D­
10
Incremental
Probability
Contour
Plot
for
Birmingham,
Alabama,
Source
2
­
Crustal.

Figure
D­
11
Back
Trajectories
Color
Coded
by
Source
Strength
Category
for
Birmingham,
Alabama,
Source
2
­
Crustal.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
10
September
24,
2003
Figure
D­
12
Scatter
Plot
of
Source
Strength
Versus
Mean
Daily
Temperature(
Rows
1
and
2)
and
Pressure
(
bottom)
for
Birmingham,
Alabama,
Source
2
­
Crustal.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
11
September
24,
2003
Figure
D­
13
Profile
Plot
(
Top),
Time
Series
Plot
(
Middle),
and
Bar
Charts
of
the
Source
Strength
Averaged
by
Wind
Speed,
Day
of
Week,
and
Season
(
Bottom)
for
Birmingham,
Alabama,
Source
3
­
Mobile
Sources.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
12
September
24,
2003
Figure
D­
14
Pollution
Rose
for
Birmingham,
Alabama,
Source
3
­
Mobile
Sources.

Figure
D­
15
Source
Contribution
Contour
Plot
for
Birmingham,
Alabama,
Source
3
­
Mobile
Sources.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
13
September
24,
2003
Figure
D­
16
Incremental
Probability
Contour
Plot
for
Birmingham,
Alabama,
Source
3
­
Mobile
Sources.

Figure
D­
17
Back
Trajectories
Color
Coded
by
Source
Strength
Category
for
Birmingham,
Alabama,
Source
3
­
Mobile
Sources.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
14
September
24,
2003
Figure
D­
18
Scatter
Plot
of
Source
Strength
Versus
Mean
Daily
Temperature(
Rows
1
and
2)
and
Pressure
(
bottom)
for
Birmingham,
Alabama,
Source
3
­
Mobile
Sources.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
15
September
24,
2003
Figure
D­
19
Profile
Plot
(
Top),
Time
Series
Plot
(
Middle),
and
Bar
Charts
of
the
Source
Strength
Averaged
by
Wind
Speed,
Day
of
Week,
and
Season
(
Bottom)
for
Birmingham,
Alabama,
Source
4
­
Vegetative
Burning
and
Fireworks.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
16
September
24,
2003
Figure
D­
20
Pollution
Rose
for
Birmingham,
Alabama,
Source
4
­
Vegetative
Burning
and
Fireworks.

Figure
D­
21
Source
Contribution
Contour
Plot
for
Birmingham,
Alabama,
Source
4
­
Vegetative
Burning
and
Fireworks.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
17
September
24,
2003
Figure
D­
22
Incremental
Probability
Contour
Plot
for
Birmingham,
Alabama,
Source
4
­
Vegetative
Burning
and
Fireworks.

Figure
D­
23
Back
Trajectories
Color
Coded
by
Source
Strength
Category
for
Birmingham,
Alabama,
Source
4
­
Vegetative
Burning
and
Fireworks.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
18
September
24,
2003
Figure
D­
24
Scatter
Plot
of
Source
Strength
Versus
Mean
Daily
Temperature(
Rows
1
and
2)
and
Pressure
(
bottom)
for
Birmingham,
Alabama,
Source
4
­
Vegetative
Burning
and
Fireworks.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
19
September
24,
2003
Figure
D­
25
Profile
Plot
(
Top),
Time
Series
Plot
(
Middle),
and
Bar
Charts
of
the
Source
Strength
Averaged
by
Wind
Speed,
Day
of
Week,
and
Season
(
Bottom)
for
Birmingham,
Alabama,
Source
5
­
Lead
Source.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
20
September
24,
2003
Figure
D­
26
Pollution
Rose
for
Birmingham,
Alabama,
Source
5
­
Lead
Source.

Figure
D­
27
Source
Contribution
Contour
Plot
for
Birmingham,
Alabama,
Source
5
­
Lead
Source.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
21
September
24,
2003
Figure
D­
28
Incremental
Probability
Contour
Plot
for
Birmingham,
Alabama,
Source
5
­
Lead
Source.

Figure
D­
29
Back
Trajectories
Color
Coded
by
Source
Strength
Category
for
Birmingham,
Alabama,
Source
5
­
Lead
Source.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
22
September
24,
2003
Figure
D­
30
Scatter
Plot
of
Source
Strength
Versus
Mean
Daily
Temperature(
Rows
1
and
2)
and
Pressure
(
bottom)
for
Birmingham,
Alabama,
Source
5
­
Lead
Source.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
23
September
24,
2003
Figure
D­
31
Profile
Plot
(
Top),
Time
Series
Plot
(
Middle),
and
Bar
Charts
of
the
Source
Strength
Averaged
by
Wind
Speed,
Day
of
Week,
and
Season
(
Bottom)
for
Birmingham,
Alabama,
Source
6
­
Zinc
Source.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
24
September
24,
2003
Figure
D­
32
Pollution
Rose
for
Birmingham,
Alabama,
Source
6
­
Zinc
Source.

Figure
D­
33
Source
Contribution
Contour
Plot
for
Birmingham,
Alabama,
Source
6
­
Zinc
Source.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
25
September
24,
2003
Figure
D­
34
Incremental
Probability
Contour
Plot
for
Birmingham,
Alabama,
Source
6
­
Zinc
Source.

Figure
D­
35
Back
Trajectories
Color
Coded
by
Source
Strength
Category
for
Birmingham,
Alabama,
Source
6
­
Zinc
Source.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
26
September
24,
2003
Figure
D­
36
Scatter
Plot
of
Source
Strength
Versus
Mean
Daily
Temperature(
Rows
1
and
2)
and
Pressure
(
bottom)
for
Birmingham,
Alabama,
Source
6
­
Zinc
Source.
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
27
September
24,
2003
Figure
D­
37
Profile
Plot
(
Top),
Time
Series
Plot
(
Middle),
and
Bar
Charts
of
the
Source
Strength
Averaged
by
Wind
Speed,
Day
of
Week,
and
Season
(
Bottom)
for
Birmingham,
Alabama,
Source
7
­
Coal
Combustion
(
Ni).
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
28
September
24,
2003
Figure
D­
38
Pollution
Rose
for
Birmingham,
Alabama,
Source
7
­
Coal
Combustion
(
Ni).

Figure
D­
39
Source
Contribution
Contour
Plot
for
Birmingham,
Alabama,
Source
7
­
Coal
Combustion
(
Ni).
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
29
September
24,
2003
Figure
D­
40
Incremental
Probability
Contour
Plot
for
Birmingham,
Alabama,
Source
7
­
Coal
Combustion
(
Ni).

Figure
D­
41
Back
Trajectories
Color
Coded
by
Source
Strength
Category
for
Birmingham,
Alabama,
Source
7
­
Coal
Combustion
(
Ni).
Eight­
Site
SA
Speciation
Trends
Final
Report
D­
30
September
24,
2003
Figure
D­
42
Scatter
Plot
of
Source
Strength
Versus
Mean
Daily
Temperature(
Rows
1
and
2)
and
Pressure
(
bottom)
for
Birmingham,
Alabama,
Source
7
­
Coal
Combustion
(
Ni).