Document ID: EPA-HQ-OAR-2006-0669-0003
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2008-01-08T05:00Z

FINAL
Evaluation
of
Potential
Regionally
Significant
Areas
Under
the
General
Conformity
Regulations
August
14,
2006
Prepared
for:
U.
S.
Environmental
Protection
Agency
Ozone
Policy
and
Strategies
Group
U.
S.
Environmental
Protection
Agency
Research
Triangle
Park,
North
Carolina
Prepared
by:
Science
Applications
International
Corporation
615
Oberlin
Road,
Suite
100
Raleigh,
North
Carolina
SAIC
Project
Number
06­
6388­
08­
5737­
xxx
1
FINAL
Evaluation
of
Potential
Regionally
Significant
Areas
Under
the
General
Conformity
Regulations
The
General
Conformity
regulations
require
Federal
agencies
to
conduct
an
applicability
analysis
to
determine
if
the
Federal
action
is
subject
to
the
General
Conformity
regulations.
As
part
of
this
applicability
analysis,
the
Federal
agency
must
analyze
the
emissions
to
determine
if
they
are
"
regionally
significant."
Current
Federal
regulations
(
40
CFR
93.152)
define
a
regionally
significant
action
as
"
a
Federal
action
for
which
the
direct
and
indirect
emissions
of
any
pollutant
represent
10
percent
or
more
of
a
nonattainment
or
maintenance
area's
emission
inventory
for
that
pollutant."
This
provision
is
intended
to
subject
actions
to
General
Conformity
regulations
where
the
action's
emissions
are
below
de
minimis
emission
levels,
yet
have
a
significant
impact
on
an
area's
air
quality.
However,
since
the
rule
was
implemented,
no
actions
have
been
deemed
to
be
regionally
significant.
This
is
primarily
due
to
the
fact
that
emission
levels
for
nonattainment
areas
are
usually
much
greater
than
ten
times
the
de
minimis
emission
values
and
would
rarely
be
classified
as
regionally
significant.
In
order
to
streamline
the
General
Conformity
process
and
reduce
undue
burden
on
Federal
agencies,
EPA
is
considering
the
possibility
of
modifying
or
eliminating
the
regionally
significant
provision.
This
report
contains
an
analysis
of
emission
levels
in
nonattainment
areas
to
determine
which
existing
nonattainment
areas
would
likely
be
affected
by
the
deletion
or
modification
of
the
regionally
significant
criteria.

Areas
that
Could
Potentially
Be
Affected
by
the
Regionally
Significant
Provision
To
determine
whether
or
not
the
regionally
significant
provision
could
ever
affect
a
government
installation
in
an
area,
the
nonattainment
area's
emissions
first
need
to
be
compared
to
the
de
minimis
levels
that
would
trigger
a
General
Conformity
analysis.
If
the
de
minimis
levels
are
lower
than
ten
percent
of
the
nonattainment
area's
emissions,
then
the
regionally
significant
provision
will
never
trigger
a
General
Conformity
analysis
under
the
current
regulations.

A
list
of
nonattainment
areas
for
carbon
monoxide
(
CO),
lead
(
Pb),
8­
hour
ozone
standard
(
O3),
particulate
matter
less
than
ten
microns
in
aerodynamic
diameter
(
PM10),
and
sulfur
dioxide
(
SO2)
as
of
November
29,
2004
were
obtained
from
EPA's
Green
Book
web
site.
Nonattainment
areas
for
the
1­
hour
ozone
standard
and
the
PM2.5
standard
were
not
examined.

Criteria
pollutant
emissions
data
from
the
1999
National
Emissions
Inventory
(
NEI99)
final
version
3
were
used
for
this
analysis.
The
NEI99
data
summary
files
were
downloaded
from
EPA's
ftp
site
(
ftp://
ftp.
epa.
gov/
pub/
EmisInventory/
finalnei99ver3/
criteria/
summaries/).
For
each
county,
the
summary
files
list
pollutant
emissions
totals
for
each
emission
source
type.
The
criteria
pollutant
and
lead
emissions
for
each
source
type
were
totaled
for
each
county.
The
county
emission
totals
for
each
nonattainment
area
were
totaled
to
provide
a
representative
emissions
value
for
that
area.
Only
emissions
for
whole
counties
were
used
from
the
NEI99.
As
a
result,
the
area
emission
totals
may
overestimate
emissions
for
nonattainment
areas
defined
2
as
containing
partial
counties
and
require
more
detailed
analysis.
The
emissions
are
presented
in
Appendix
A.
Based
on
the
existing
definition
of
a
regionally
significant
action,
an
area
could
only
be
considered
regionally
significant
if
the
nonattainment
area's
emissions
do
not
exceed
ten
times
the
de
minimis
value
for
triggering
general
conformity
analyses.
The
de
minimis
values
vary
depending
on
the
nonattainment
area
type
and
classification,
ranging
from
25
to
100
tons.
For
this
analysis,
a
de
minimis
value
of
100
tons
was
used
for
criteria
pollutants
and
25
tons
for
Pb.
Table
1
presents
nonattainment
areas
where
at
least
one
of
the
relevant
NAAQS
precursor
criteria
pollutant
emission
totals
are
less
than
1,000
tons
(
ten
times
the
de
minimis
value
of
100
tons).
According
to
the
General
Conformity
Regulations,
the
de
minimis
levels
are
specified
for
ozone
precursors
but
no
other
criteria
pollutant.

The
areas
listed
in
Table
1
are
the
only
places
where
an
action
could
meet
the
regionally
significant
criteria
but
not
the
de
minimis
criteria.
Of
the
209
nonattainment
areas
analyzed,
only
seven
areas
had
emission
levels
below
250
tons
(
for
Pb)
and
1000
tons
(
for
other
criteria
pollutants)
for
the
pollutant
of
interest
or
relevant
precursor.
Of
these
seven
areas,
there
were
two
Pb,
one
O3,
one
PM10,
and
three
SO2
nonattainment
areas.

Table
1.
Nonattainment
areas
with
relevant
NAAQS
precursor
criteria
pollutant
emission
totals
less
than
1,000
tons
(
250
for
Pb).
*

Total
Emissions
(
tons/
year)
Pollutant
Nonattainment
Area
CO
NOX
PM10
PM2.5
SO2
VOC
Pb
Pb
East
Helena
Area
(
Lewis
and
Clark
Co.),
MT
23,440
4,170
8,425
1,994
10,090
3,265
9.2
Pb
Jefferson
County
(
part);
Herculaneum,
MO
72,934
16,120
39,270
8,756
56,550
11,496
152.6
O3
Benzie
Co,
MI
10,781
985
1,844
596
112
2,980
0.0
SO2
Hayden
(
Pinal
County),
AZ
85,514
13,944
22,834
6,288
706
10,244
6.6
SO2
San
Manuel
(
Pinal
County),
AZ
85,514
13,944
22,834
6,288
706
10,244
6.6
SO2
Tooele
Co,
UT
40,147
7,990
13,650
4,540
679
4,824
0.5
*
Grey
highlighting
indicates
pollutant
of
interest
or
relevant
NAAQS
precursor.
Emissions
less
than
1,000
tons
are
shown
in
bold.
The
emissions
shown
in
the
table
apply
to
the
whole
county;
partial
county
emissions
were
not
computed.

During
the
rule
revision
process,
it
has
been
suggested
that
EPA
consider
revising
the
criteria
for
the
regionally
significant
provision
from
10%
of
the
area
inventory
to
5%
to
capture
more
areas.
In
accordance
with
this,
nonattainment
areas
with
emissions
less
than
2,000
tons
are
shown
in
Table
2.
These
areas
would
be
the
only
areas
for
which
an
action
could
be
considered
regionally
significant
if
the
criteria
were
changed
so
that
any
action
representing
5%
of
an
area's
emission
inventory
for
a
pollutant
would
be
regionally
significant.
There
were
sixteen
nonattainment
areas
meeting
these
criteria.
Total
emissions
for
all
the
nonattainment
areas
studied
are
shown
in
Appendix
A.
3
A
brief
discussion
of
the
areas
in
Table
1
follows.

Pb
Nonattainment
Areas
There
are
two
Pb
nonattainment
areas
where
the
emissions
are
such
that
the
regionally
significant
provision
could
possibly
be
triggered
without
the
de
minimis
provision
being
triggered.
Lewis
and
Clark
County,
Montana
has
not
had
a
violation
of
the
Pb
standard
since
at
least
1999.
Jefferson
County,
Missouri
has
not
had
a
violation
since
2002.
According
to
the
EPA's
web
site
(
http://
www.
epa.
gov/
air/
oaqps/
greenbk/),
neither
of
these
areas
has
been
redesignated.

EPA
Region
7
indicated
that
the
Doe
Run
Pb
smelter
continues
to
operate
in
Jefferson
County,
Missouri
but
has
recently
implemented
several
new
control
strategies.
The
State
of
Missouri
hopes
to
redesignate
this
nonattainment
area
when
the
air
quality
improvements
are
measured.

EPA
Region
7
also
noted
that
the
Asarco
Pb
smelter
in
Louis
and
Clark
County,
Montana
was
temporarily
shut
down
in
the
spring
of
2001.
The
State
of
Montana
is
not
planning
on
redesignating
this
area
anytime
in
the
near
future.

O3Nonattainment
Area
The
single
O3
nonattainment
area
with
emissions
of
1000
tons
or
less
is
Benzie
County,
Michigan.
According
to
the
State
of
Michigan's
2003
designation
recommendation
for
O3
nonattainment
areas,
Benzie
County,
located
on
the
western
shore
of
Lake
Michigan
is
impacted
by
overwhelming
transport
of
O3
from
the
southwest.

PM10
Nonattainment
Area
The
1999
NEI
reported
only
onroad
and
nonroad
mobile
emissions
for
Guaynabo
County
in
Puerto
Rico.
There
were
no
emissions
from
point
or
area
sources
included
in
the
inventory.
Therefore,
Guaynabo
County
has
been
omitted
from
Tables
1
and
2
and
Appendix
A.

SO2
Nonattainment
Areas
Significant
land
areas
in
Pinal
County,
Arizona
and
Tooele
County,
Utah
belong
to
multiple
agencies
in
the
Federal
government.
Emission
increases
over
70
tons
of
sulfur
dioxide
but
less
than
100
tons
in
the
three
sulfur
dioxide
nonattainment
areas
in
Table
1
would
trigger
the
regionally
significant
provision
without
triggering
the
de
minimis
levels.

The
San
Manuel
copper
smelter,
the
major
source
of
SO2
in
Pinal
County,
closed
in
1999.
EPA
Region
9
believes
that
Arizona
will
file
for
a
redesignation
to
maintenance
status
in
the
near
future.
The
smelter
in
nearby
Hayden
is
now
heavily
controlled
to
prevent
future
violations
of
the
SO2
NAAQS.
4
EPA
Region
8
reported
that
the
Kennecot
copper
smelter,
the
major
source
of
SO2
in
Tooele
County,
was
rebuilt
after
the
area
was
classified
as
nonattainment.
Subsequently,
they
have
reduced
their
emissions
as
part
of
their
PM
State
Implementation
Plan.
Utah
will
be
submitting
a
maintenance
plan
to
the
EPA
in
the
near
future.

Table
2.
Nonattainment
areas
with
relevant
NAAQS
precursor
criteria
pollutant
emission
totals
less
than
2,000
tons
(
500
for
Pb).
*

Total
Emissions
(
tons/
year)
Pollutant
Nonattainment
Area
CO
NOX
PM10
SO2
VOC
Pb
Pb
East
Helena
Area
(
Lewis
and
Clark
Co.),
MT
23,440
4,170
8,425
10,090
3,265
9.2
Pb
Jefferson
County
(
part);
Herculaneum,
MO
72,934
16,120
39,270
56,550
11,496
152.6
O3
Benzie
Co,
MI
10,781
985
1,844
112
2,980
0.0
O3
Cass
Co,
MI
15,778
1,948
6,636
314
4,018
0.3
O3
Door
Co,
WI
25,060
1,999
3,408
394
6,135
0.3
O3
Kewaunee
Co,
WI
12,637
1,494
3,010
259
3,199
0.0
O3
Madison
and
Page
Counties
(
Shenandoah
NP),
VA
14,869
1,586
3,413
172
2,067
0.1
O3
Mason
Co,
MI
13,515
1,982
2,941
205
3,755
0.2
O3
Murray
Co
(
Chattahoochee
National
Forest),
GA
14,756
2,011
5,144
134
1,714
0.0
SO2
Hayden
(
Pinal
County),
AZ
85,514
13,944
22,834
706
10,244
6.6
SO2
New
Manchester­
Grant
Magisterial
District
(
Hancock),
WV
15,381
4,342
5,869
1,789
3,280
0.1
SO2
San
Manuel
(
Pinal
County),
AZ
85,514
13,944
22,834
706
10,244
6.6
SO2
Tooele
Co,
UT
40,147
7,990
13,650
679
4,824
0.5
SO2
Warren
Co,
NJ
44,319
6,711
4,325
1,028
6,969
4.4
SO2
Weirton,
WV
15,381
4,342
5,869
1,789
3,280
0.1
*
Grey
highlighting
indicates
pollutant
of
interest
or
relevant
NAAQS
precursor.
Emissions
less
than
2,000
tons
are
shown
in
bold.
The
emissions
shown
in
the
table
apply
to
the
whole
county;
partial
county
emissions
were
not
computed.
A­
1
Appendix
A.
Nonattainment
area
pollutant
emissions.
*

Total
Emissions
(
tons/
year)
Pollutant
Nonattainment
Area
CO
NOx
PM10
SO2
VOC
Pb
CO
El
Paso,
TX
138,268
24,116
14,044
1,992
21,097
1.4
CO
Las
Vegas,
NV
422,651
78,139
57,366
46,318
52,387
4.0
CO
Los
Angeles
South
Coast
Air
Basin,
CA
3,059,171
526,044
224,510
37,602
490,734
68.7
CO
Missoula,
MT
38,893
10,880
12,886
773
6,610
1.3
CO
Provo,
UT
131,274
14,140
22,555
2,384
19,061
0.9
CO
Reno,
NV
152,728
15,320
26,344
1,953
21,620
0.8
CO
Salem,
OR
145,834
18,267
27,379
2,711
36,769
0.6
CO
Spokane,
WA
146,922
17,351
12,907
6,254
19,851
1.0
Pb
East
Helena
Area
(
Lewis
and
Clark
Co.),
MT
23,440
4,170
8,425
10,090
3,265
9.2
Pb
Jefferson
County
(
part);
Herculaneum,
MO
72,934
16,120
39,270
56,550
11,496
152.6
O3
Albany­
Schenectady­
Troy,
NY
391,556
58,801
45,174
30,402
52,624
2.0
O3
Allegan
Co,
MI
50,776
7,403
10,995
769
11,080
0.2
O3
Allentown­
Bethlehem­
Easton,
PA
221,641
39,713
26,969
65,308
30,296
2.5
O3
Altoona,
PA
46,704
6,613
5,729
4,361
6,864
0.7
O3
Amador
and
Calaveras
Cos
(
Central
Mtn),
CA
60,864
5,085
11,324
533
9,536
0.7
O3
Atlanta,
GA
1,898,336
277,724
278,564
222,321
242,409
15.8
O3
Baltimore,
MD
842,202
159,806
60,576
141,683
111,434
11.2
O3
Baton
Rouge,
LA
282,561
121,066
49,314
80,497
55,844
19.7
O3
Beaumont­
Port
Arthur,
TX
188,798
76,741
54,276
40,670
44,171
3.3
O3
Benton
Harbor,
MI
76,079
10,991
11,409
1,343
13,427
0.5
O3
Benzie
Co,
MI
10,781
985
1,844
112
2,980
0.0
O3
Berkeley
and
Jefferson
Counties,
WV
45,136
11,021
11,842
3,199
8,449
0.6
O3
Birmingham,
AL
438,712
116,431
71,991
189,639
62,838
25.6
O3
Boston­
Lawrence­
Worcester
(
Eastern
MA),
MA
1,856,609
275,527
229,832
203,684
284,896
13.8
O3
Boston­
Manchester­
Portsmouth
(
SE),
NH
364,776
52,614
27,604
65,793
62,830
10.7
O3
Buffalo­
Niagara
Falls,
NY
440,085
67,344
40,714
80,811
68,036
3.3
O3
Canton­
Massillon,
OH
133,746
15,754
15,098
2,633
22,834
3.7
O3
Cass
Co,
MI
15,778
1,948
6,636
314
4,018
0.3
O3
Charleston,
WV
113,811
92,020
19,039
132,146
20,960
3.9
O3
Charlotte­
Gastonia­
Rock
Hill,
NC­
SC
730,152
107,499
65,610
81,026
112,438
7.9
O3
Chattanooga,
TN­
GA
154,798
23,686
14,736
5,296
31,213
3.3
A­
2
Total
Emissions
(
tons/
year)
Pollutant
Nonattainment
Area
CO
NOx
PM10
SO2
VOC
Pb
O3
Chicago­
Gary­
Lake
County,
IL­
IN
2,773,487
467,936
196,899
250,235
430,683
97.4
O3
Chico,
CA
82,117
9,478
12,097
626
12,787
1.0
O3
Cincinnati­
Hamilton,
OH­
KYIN
723,635
225,689
90,815
274,800
103,862
12.6
O3
Clarksville­
Hopkinsville,
TNKY
85,345
11,635
12,067
7,479
14,498
0.7
O3
Clearfield
and
Indiana
Counties,
PA
71,588
66,722
25,917
236,114
10,181
2.7
O3
Cleveland­
Akron­
Lorain,
OH
1,140,021
187,503
87,359
219,382
161,800
36.3
O3
Columbia,
SC
231,112
42,918
27,303
63,649
45,188
1.8
O3
Columbus,
OH
566,693
69,294
66,008
9,633
74,056
10.0
O3
Dallas­
Fort
Worth,
TX
1,635,574
237,844
272,786
24,709
212,287
22.7
O3
Dayton­
Springfield,
OH
325,333
44,231
37,699
11,518
49,459
4.4
O3
Denver­
Boulder­
Greeley­
Ft.
Collins­
Love,
CO
990,986
145,182
98,691
40,073
153,659
11.4
O3
Detroit­
Ann
Arbor,
MI
1,821,733
335,408
137,522
306,935
256,738
34.2
O3
Door
Co,
WI
25,060
1,999
3,408
394
6,135
0.3
O3
Erie,
PA
125,908
18,819
10,005
16,033
31,468
1.5
O3
Essex
Co
(
Whiteface
Mtn),
NY
32,549
4,201
4,108
1,535
4,535
0.2
O3
Evansville,
IN
124,163
41,246
25,195
136,531
18,839
1.6
O3
Fayetteville,
NC
119,570
12,851
9,690
2,438
18,909
0.4
O3
Flint,
MI
213,300
26,850
27,042
3,759
32,800
0.8
O3
Fort
Wayne,
IN
139,530
17,840
18,390
1,422
25,059
0.9
O3
Franklin
Co,
PA
53,149
6,787
8,677
1,482
7,883
7.7
O3
Frederick
Co,
VA
42,993
4,782
5,399
793
7,699
0.8
O3
Fredericksburg,
VA
87,517
8,805
7,307
772
10,191
0.1
O3
Grand
Rapids,
MI
318,978
72,379
34,307
61,749
55,006
5.8
O3
Greater
Connecticut,
CT
571,880
63,181
36,205
17,347
89,262
14.1
O3
Greene
Co,
IN
14,677
2,131
5,687
505
3,018
0.1
O3
Greene
Co,
PA
20,464
24,669
11,888
142,836
2,883
0.6
O3
Greensboro­
Winston
Salem­
High
Point,
NC
525,911
76,227
46,355
20,772
105,226
4.6
O3
Greenville­
Spartanburg­
Anderson,
SC
530,150
48,351
48,582
16,437
74,143
5.1
O3
Hancock,
Knox,
Lincoln
&
Waldo
Counties,
ME
89,606
10,969
10,678
5,744
19,639
0.8
O3
Harrisburg­
Lebanon­
Carlisle,
PA
277,019
38,316
31,447
10,346
36,762
3.1
O3
Haywood
and
Swain
Counties
(
Great
Smoky
NP),
NC
44,043
9,350
3,832
8,488
6,854
0.4
O3
Hickory­
Morganton­
Lenoir,
NC
153,201
44,323
18,168
77,667
42,720
1.6
A­
3
Total
Emissions
(
tons/
year)
Pollutant
Nonattainment
Area
CO
NOx
PM10
SO2
VOC
Pb
O3
Houston­
Galveston­
Brazoria,
TX
1,509,627
389,267
324,623
151,901
231,001
24.5
O3
Huntington­
Ashland,
WV­
KY
82,803
32,875
11,885
15,046
19,221
3.1
O3
Huron
Co,
MI
18,569
3,801
10,203
1,958
4,999
0.2
O3
Imperial
Co,
CA
86,766
15,694
24,918
791
11,738
1.9
O3
Indianapolis,
IN
708,119
106,706
103,542
80,655
105,865
13.4
O3
Jackson
Co,
IN
22,970
3,594
5,220
262
4,782
0.1
O3
Jamestown,
NY
69,292
16,552
11,661
63,263
12,014
0.5
O3
Jefferson
Co,
NY
60,235
8,085
7,551
3,998
10,538
0.2
O3
Johnson
City­
Kingsport­
Bristol,
TN
95,469
42,449
16,471
96,257
29,870
9.5
O3
Johnstown,
PA
54,636
8,477
6,919
8,315
7,686
0.9
O3
Kalamazoo­
Battle
Creek,
MI
191,219
26,028
28,838
4,979
31,768
3.8
O3
Kent
and
Queen
Anne's
Counties,
MD
27,675
3,293
6,523
654
7,349
0.6
O3
Kern
Co
(
Eastern
Kern),
CA
207,535
71,544
35,727
7,324
46,185
11.6
O3
Kewaunee
Co,
WI
12,637
1,494
3,010
259
3,199
0.0
O3
Knoxville,
TN
376,991
63,675
37,056
51,740
60,982
5.4
O3
La
Porte,
IN
54,915
16,567
11,209
11,203
10,832
0.5
O3
Lancaster,
PA
168,401
21,726
22,868
10,332
28,235
10.3
O3
Lansing­
East
Lansing,
MI
175,796
29,329
25,913
21,543
27,191
2.4
O3
Las
Vegas,
NV
422,651
78,139
57,366
46,318
52,387
4.0
O3
Lima,
OH
45,354
10,089
7,442
4,428
12,695
0.5
O3
Los
Angeles
South
Coast
Air
Basin,
CA
3,059,171
526,044
224,510
37,602
490,734
68.7
O3
Los
Angeles­
San
Bernardino
Counties
(
W
Mojave),
CA
2,219,777
393,668
149,653
29,981
355,068
49.4
O3
Louisville,
KY­
IN
362,624
113,469
46,198
137,947
78,993
4.9
O3
Macon,
GA
85,934
58,348
18,028
107,161
12,723
3.1
O3
Madison
and
Page
Counties
(
Shenandoah
NP),
VA
14,869
1,586
3,413
172
2,067
0.1
O3
Manitowoc
Co,
WI
44,946
6,530
6,761
5,184
7,475
1.3
O3
Mariposa
and
Tuolumne
Counties
(
Southern
Mtn),
CA
66,800
4,744
10,123
866
9,164
1.2
O3
Mason
Co,
MI
13,515
1,982
2,941
205
3,755
0.2
O3
Memphis,
TN­
AR
324,620
72,785
32,299
31,045
68,531
4.8
O3
Milwaukee­
Racine,
WI
594,233
121,042
63,453
120,228
89,883
5.7
O3
Muncie,
IN
66,691
6,674
8,056
1,493
10,403
1.0
O3
Murray
Co
(
Chattahoochee
National
Forest),
GA
14,756
2,011
5,144
134
1,714
0.0
O3
Muskegon,
MI
64,273
13,259
9,351
18,702
11,265
3.2
O3
Nashville,
TN
451,608
81,016
53,128
110,312
75,505
9.8
A­
4
Total
Emissions
(
tons/
year)
Pollutant
Nonattainment
Area
CO
NOx
PM10
SO2
VOC
Pb
O3
Nevada
Co
(
Western
Part),
CA
51,588
4,027
8,321
374
6,946
0.9
O3
New
York­
N.
New
Jersey­
Long
Island,
NY­
NJ­
CT
4,379,463
591,016
242,480
252,298
724,684
52.0
O3
Norfolk­
Virginia
Beach­
Newport
News
(
HR),
VA
516,181
82,587
43,625
95,838
76,335
16.7
O3
Parkersburg­
Marietta,
WVOH
66,020
40,738
20,269
193,562
13,115
3.0
O3
Philadelphia­
Wilmington­
Atlantic
City,
PA­
NJ­
MD­
DE
2,089,428
341,912
176,380
212,232
348,472
74.3
O3
Phoenix­
Mesa,
AZ
947,088
167,245
124,862
9,166
141,298
16.5
O3
Pittsburgh­
Beaver
Valley,
PA
844,098
205,734
92,411
302,316
118,244
26.4
O3
Portland,
ME
244,274
39,404
23,502
27,889
40,340
2.7
O3
Poughkeepsie,
NY
263,638
40,353
35,504
44,249
37,870
3.7
O3
Providence
(
All
RI),
RI
287,122
38,173
14,246
9,189
59,890
1.9
O3
Raleigh­
Durham­
Chapel
Hill,
NC
534,253
116,439
56,940
154,911
73,817
3.4
O3
Reading,
PA
129,758
20,879
16,780
18,916
20,900
6.4
O3
Richmond­
Petersburg,
VA
354,966
74,285
31,250
80,400
50,279
2.3
O3
Riverside
Co,
(
Coachella
Valley),
CA
313,079
48,903
40,740
2,536
46,147
9.3
O3
Roanoke,
VA
107,516
14,702
10,347
3,707
14,794
1.9
O3
Rochester,
NY
469,552
61,560
59,248
70,379
77,642
2.2
O3
Rocky
Mount,
NC
81,904
10,741
8,672
1,973
13,156
0.2
O3
Sacramento
Metro,
CA
642,098
93,978
75,453
10,473
99,639
18.7
O3
San
Antonio,
TX
515,658
86,508
98,502
35,923
82,539
4.1
O3
San
Diego,
CA
627,065
90,318
60,063
5,879
102,386
26.1
O3
San
Francisco
Bay
Area,
CA
1,225,499
224,920
123,601
31,868
246,465
28.5
O3
San
Joaquin
Valley,
CA
1,101,839
234,292
174,171
21,187
175,668
33.3
O3
Scranton­­
Wilkes­
Barre,
PA
269,676
32,261
25,369
12,797
36,807
3.0
O3
Sheboygan,
WI
44,621
22,003
8,375
20,961
7,816
16.8
O3
South
Bend­
Elkhart,
IN
177,493
27,241
26,622
4,143
41,546
6.6
O3
Springfield
(
Western
MA),
MA
325,045
39,694
47,838
22,446
48,067
1.9
O3
St
Louis,
MO­
IL
937,575
212,004
186,490
249,351
147,118
300.3
O3
State
College,
PA
51,367
9,217
6,884
5,804
6,686
17.1
O3
Steubenville­
Weirton,
OHWV
88,066
104,962
26,644
271,035
11,580
2.0
O3
Sutter
Co
(
Sutter
Buttes),
CA
41,094
5,396
8,197
311
5,953
0.5
O3
Terre
Haute,
IN
50,845
16,916
13,348
65,131
11,046
4.0
O3
Tioga
Co,
PA
14,050
2,119
3,411
250
2,688
0.1
O3
Toledo,
OH
223,039
48,186
23,920
27,113
36,814
1.3
O3
Ventura
Co,
CA
175,988
27,859
15,376
3,472
28,926
2.6
A­
5
Total
Emissions
(
tons/
year)
Pollutant
Nonattainment
Area
CO
NOx
PM10
SO2
VOC
Pb
O3
Washington
Co
(
Hagerstown),
MD
74,058
12,469
7,597
4,442
14,984
1.1
O3
Washington,
DC­
MD­
VA
1,362,130
222,302
105,098
243,875
183,100
11.6
O3
Wheeling,
WV­
OH
125,791
68,840
20,596
233,449
11,961
0.5
O3
York,
PA
164,113
39,258
31,989
87,079
28,963
5.0
O3
Youngstown­
Warren­
Sharon,
OH­
PA
340,228
45,730
32,346
28,827
47,358
7.1
PM10
Ajo
(
Pima
County),
AZ
274,211
38,495
31,081
4,977
39,298
2.7
PM10
Anthony,
NM
92,833
14,202
63,819
1,279
11,430
0.3
PM10
Bonner
Co
(
Sandpoint),
ID
21,061
5,238
14,983
384
8,229
0.2
PM10
Butte,
MT
12,370
2,341
3,542
167
1,912
0.1
PM10
Clark
Co,
NV
422,651
78,139
57,366
46,318
52,387
4.0
PM10
Coachella
Valley,
CA
313,079
48,903
40,740
2,536
46,147
9.3
PM10
Columbia
Falls,
MT
72,028
6,715
21,628
1,809
5,661
0.4
PM10
Coso
Junction,
CA
12,857
1,373
9,238
671
1,936
0.5
PM10
Douglas
(
Cochise
County),
AZ
77,894
16,868
14,614
7,306
9,318
0.4
PM10
Eagle
River,
AK
88,589
9,599
5,238
713
10,178
1.5
PM10
El
Paso
Co,
TX
138,268
24,116
14,044
1,992
21,097
1.4
PM10
Eugene­
Springfield,
OR
139,034
17,626
24,104
2,649
39,582
2.2
PM10
Flathead
County;
Whitefish
and
vicinity,
MT
72,028
6,715
21,628
1,809
5,661
0.4
PM10
Fort
Hall
Reservation,
ID
73,249
8,325
19,190
2,660
17,780
0.3
PM10
Hayden/
Miami,
AZ
126,689
17,706
31,745
25,552
15,629
20.1
PM10
Imperial
Valley,
CA
86,766
15,694
24,918
791
11,738
1.9
PM10
Juneau,
AK
25,527
1,371
3,029
286
1,988
0.3
PM10
Kalispell,
MT
72,028
6,715
21,628
1,809
5,661
0.4
PM10
LaGrande,
OR
23,140
3,659
5,568
402
5,159
0.2
PM10
Lake
Co,
OR
32,088
2,071
4,383
275
4,616
1.5
PM10
Lamar,
CO
8,589
2,108
5,882
90
1,472
0.1
PM10
Lame
Deer,
MT
15,377
41,782
15,579
19,546
1,530
2.2
PM10
Lane
Co,
OR
139,034
17,626
24,104
2,649
39,582
2.2
PM10
Libby,
MT
13,938
3,259
8,083
242
1,629
0.0
PM10
Los
Angeles
South
Coast
Air
Basin,
CA
3,059,171
526,044
224,510
37,602
490,734
68.7
PM10
Lyons
Township,
IL
1,498,261
209,405
46,038
63,157
251,703
23.4
PM10
Medford­
Ashland,
OR
74,847
10,425
16,371
1,512
22,532
0.8
PM10
Missoula,
MT
38,893
10,880
12,886
773
6,610
1.3
PM10
Mono
Basin,
CA
13,949
902
10,261
481
2,337
0.1
PM10
New
Haven
Co,
CT
259,369
33,632
9,153
20,527
43,207
0.9
PM10
New
York
Co,
NY
325,669
47,593
9,595
28,689
53,916
0.3
PM10
Nogales,
AZ
22,108
2,311
4,046
134
3,061
0.2
PM10
Ogden,
UT
66,482
9,137
12,242
1,211
11,163
0.6
PM10
Owens
Valley,
CA
12,857
1,373
9,238
671
1,936
0.5
PM10
Paul
Spur,
AZ
77,894
16,868
14,614
7,306
9,318
0.4
PM10
Phoenix,
AZ
947,088
167,245
124,862
9,166
141,298
16.5
A­
6
Total
Emissions
(
tons/
year)
Pollutant
Nonattainment
Area
CO
NOx
PM10
SO2
VOC
Pb
PM10
Pinehurst,
ID
9,511
1,488
7,294
238
4,437
0.5
PM10
Polson,
MT
13,599
1,629
10,137
129
1,934
0.0
PM10
Portneuf
Valley,
ID
73,249
8,325
19,190
2,660
17,780
0.3
PM10
Rillito,
AZ
274,211
38,495
31,081
4,977
39,298
2.7
PM10
Ronan,
MT
13,599
1,629
10,137
129
1,934
0.0
PM10
Sacramento
Co,
CA
276,721
42,181
22,522
1,560
40,719
5.2
PM10
Salt
Lake
Co,
UT
316,473
61,128
32,297
13,726
50,608
45.1
PM10
San
Bernardino
Co,
CA
367,164
100,295
51,284
5,419
59,450
11.9
PM10
San
Joaquin
Valley,
CA
1,011,484
219,668
158,288
20,260
164,705
31.9
PM10
Sanders
County
(
part);
Thompson
Falls
and
vicinity,
MT
7,225
4,461
5,172
313
975
0.0
PM10
Sheridan,
WY
19,012
3,022
19,563
328
2,146
0.2
PM10
Shoshone
Co,
ID
9,511
1,488
7,294
238
4,437
0.5
PM10
Southeast
Chicago,
IL
1,498,261
209,405
46,038
63,157
251,703
23.4
PM10
Spokane
Co,
WA
146,922
17,351
12,907
6,254
19,851
1.0
PM10
Trona,
CA
367,164
100,295
51,284
5,419
59,450
11.9
PM10
Utah
Co,
UT
131,274
14,140
22,555
2,384
19,061
0.9
PM10
Wallula,
WA
15,706
3,974
8,166
2,497
4,517
1.1
PM10
Washoe
Co,
NV
152,728
15,320
26,344
1,953
21,620
0.8
PM10
Weirton,
WV
26,407
6,576
7,386
3,310
7,354
0.3
PM10
Yakima
Co,
WA
78,674
9,454
9,404
559
10,884
0.3
PM10
Yuma,
AZ
58,214
10,438
12,850
572
8,506
0.2
SO2
Armstrong
Co,
PA
25,914
27,714
17,801
190,351
3,747
0.4
SO2
Boyd
County
(
part),
KY
28,632
13,725
4,311
11,208
9,464
1.5
SO2
Cuyahoga
Co,
OH
475,645
57,572
14,768
14,446
71,087
28.6
SO2
Douglas
(
Cochise
County),
AZ
77,894
16,868
14,614
7,306
9,318
0.4
SO2
East
Helena
Area
(
Lewis
and
Clark
Co.),
MT
23,440
4,170
8,425
10,090
3,265
9.2
SO2
Hayden
(
Pinal
County),
AZ
85,514
13,944
22,834
706
10,244
6.6
SO2
Lake
County,
IN
329,195
71,832
24,652
48,904
36,144
11.0
SO2
Laurel
Area
(
Yellowstone
County),
MT
51,335
15,232
18,194
13,984
14,268
0.9
SO2
Miami
(
Gila
County),
AZ
41,175
3,762
8,912
24,846
5,385
13.5
SO2
New
Manchester­
Grant
Magisterial
District
(
Hancock),
WV
15,381
4,342
5,869
1,789
3,280
0.1
SO2
Salt
Lake
Co,
UT
316,473
61,128
32,297
13,726
50,608
45.1
SO2
San
Manuel
(
Pinal
County),
AZ
85,514
13,944
22,834
706
10,244
6.6
SO2
Tooele
Co,
UT
40,147
7,990
13,650
679
4,824
0.5
SO2
Warren
Co,
NJ
44,319
6,711
4,325
1,028
6,969
4.4
SO2
Weirton,
WV
15,381
4,342
5,869
1,789
3,280
0.1
A­
7
*
Grey
highlighting
indicates
pollutant
of
interest
or
relevant
NAAQS
precursor.
The
emissions
shown
in
the
table
apply
to
the
whole
county;
partial
county
emissions
were
not
computed.

**
Does
not
include
Guaynabo
County,
Puerto
Rico.
The
NEI99
did
not
include
emissions
from
point
or
area
sources.