Appendix H.11 

Comparison Between Original and 

Revised IMPROVE Equation 
B-1

APPENDIX B

Original and Revised Algorithm Comparisons by Site
B-2

BRET1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/8 1/14 1/20 2/1 2/7 3/9 3/21 4/11 5/29 6/7 6/19 6/25 7/10 7/28 8/15 8/21 8/24 9/2 10/26 10/29 12/1 12/4 12/22 12/25 12/31 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-3

BRET1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

20

40

60

80

100

120

140

160

180

200

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

2/13 2/16 3/15 5/5 5/23 6/28 7/13 7/16 7/19 7/25 8/3 8/27 9/5 9/8 9/11 9/14 9/17 9/20 9/29 10/8 10/11 10/14 11/1 11/7 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-4

BRIG1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

2/1 3/9 3/18 4/23 4/29 5/5 6/7 7/13 7/25 8/9 9/8 9/20 9/26 10/8 10/11 10/14 10/29 11/13 11/28 12/1 12/22 12/25 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-5

BRIG1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

100

200

300

400

500

600

700

800

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/2 1/20 3/15 4/17 5/2 5/17 5/29 6/1 6/19 6/25 6/28 7/4 7/7 7/10 7/16 7/28 8/12 8/18 10/2 10/5 11/25 12/7 12/28 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-6

CACR1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

5

10

15

20

25

30

35

40

45

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/11 1/14 1/26 3/30 4/8 4/26 7/16 9/23 10/5 10/11 10/14 10/20 10/26 10/29 11/7 11/19 11/25 12/1 12/4 12/19 12/22 12/25 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-7

CACR1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

350

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

3/21 5/8 5/23 6/4 6/19 6/22 7/7 7/10 7/19 7/22 7/31 8/3 8/6 8/9 8/27 8/30 9/5 9/8 9/11 9/14 9/17 10/23 11/16 12/7 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-8

CHAS1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

2/7 3/9 3/12 4/14 5/26 6/10 6/13 6/19 6/22 6/25 7/1 7/10 7/22 8/12 8/15 8/27 8/30 9/5 9/23 11/16 12/10 12/13 12/25 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-9

CHAS1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

20

40

60

80

100

120

140

160

180

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/5 1/17 1/26 2/10 2/13 2/16 2/25 3/30 4/26 5/8 6/4 7/19 7/25 8/18 8/24 9/17 10/5 10/8 10/17 10/23 11/25 11/28 12/7 12/16 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-10

COHU1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/23 1/26 2/1 2/7 2/13 3/3 3/18 3/30 4/23 4/26 4/29 6/22 7/13 9/14 9/26 11/4 11/16 12/7 12/13 12/22 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-11

COHU1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

100

200

300

400

500

600

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

2/25 5/2 6/1 6/4 7/4 7/7 7/10 7/16 7/25 8/3 8/6 8/9 8/12 8/15 8/21 9/5 9/8 9/17 9/20 9/23 10/8 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-12

DOSO1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

5

10

15

20

25

30

35

40

45

50

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/5 1/14 1/23 1/26 2/19 3/9 3/30 4/14 4/29 6/7 10/11 10/20 10/26 10/29 11/16 11/22 12/4 12/7 12/13 12/22 12/25 12/31 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-13

DOSO1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

350

400

450

500

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

5/2 5/8 5/17 5/26 5/29 6/1 6/4 6/10 6/13 6/19 6/22 6/25 7/1 7/10 7/25 8/12 8/15 9/11 9/14 9/17 9/20 9/29 10/2 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-14

EVER1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

5

10

15

20

25

30

35

40

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/23 1/29 2/1 3/12 3/21 4/14 5/14 5/17 5/20 6/13 6/22 6/25 7/10 7/25 7/31 8/30 9/2 9/5 9/8 9/11 10/11 10/14 10/23 10/26 10/29 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-15

EVER1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/5 2/4 2/13 2/25 3/3 3/15 3/18 4/5 4/8 4/23 4/26 5/5 5/8 6/1 6/7 8/6 8/24 9/14 10/8 10/17 11/1 11/7 11/28 12/7 12/16 12/28Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-16

GRSM1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/8 1/11 1/14 1/23 2/1 2/7 2/19 2/28 3/3 3/9 3/30 4/26 7/13 9/14 9/26 10/26 10/29 11/4 11/16 11/22 12/7 12/13 12/22 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-17

GRSM1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

350

400

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

2/25 5/2 5/8 5/17 6/1 6/13 6/19 6/22 7/1 7/7 7/10 7/16 7/22 7/31 8/3 8/6 8/9 8/12 8/15 8/21 9/5 9/8 9/11 9/17 9/23 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-18

HEGL1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

5

10

15

20

25

30

35

40

45

50

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/14 1/26 2/13 3/9 3/12 3/30 4/23 4/26 4/29 5/14 5/17 5/20 8/15 9/23 10/5 10/8 10/14 10/17 10/29 11/4 11/7 11/13 12/1 12/19 12/31 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-19

HEGL1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

350

400

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/5 5/29 6/1 6/19 6/22 6/28 7/7 7/10 7/25 8/3 8/6 8/9 8/12 8/27 8/30 9/2 9/5 9/8 9/14 9/17 9/26 10/23 11/16 11/28 12/7 12/13Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-20

JARI1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

70

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/8 1/11 1/23 1/26 2/4 2/13 2/28 3/9 3/18 4/11 4/14 4/23 4/26 5/14 6/7 9/2 10/26 10/29 11/22 11/28 12/1 12/22 12/25 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-21

JARI1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

350

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

5/17 5/26 6/1 6/4 6/10 7/1 7/4 7/10 7/16 7/19 7/22 7/31 8/3 8/6 8/12 8/21 8/24 8/27 9/11 9/14 9/20 9/23 9/29 10/2 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-22

LIGO1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

5

10

15

20

25

30

35

40

45

50

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/5 1/8 1/11 1/23 1/26 2/7 3/3 3/18 3/30 4/14 4/26 4/29 10/29 11/4 11/16 11/22 12/7 12/13 12/22 12/25 12/28 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-23

LIGO1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

350

400

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

5/2 5/8 5/17 5/29 6/1 6/19 7/10 7/22 7/25 7/28 7/31 8/3 8/6 8/9 8/12 8/21 8/24 8/27 9/5 9/8 9/11 9/17 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-24

MACA1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

70

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/14 1/23 2/1 2/4 2/13 3/3 3/9 3/24 3/30 4/23 4/26 8/15 9/23 9/26 10/5 10/8 10/14 10/29 11/4 11/19 12/4 12/13 12/22 12/31 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-25

MACA1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

350

400

450

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

3/27 5/29 6/1 6/4 6/19 6/22 7/1 7/4 7/10 7/16 7/22 7/25 7/31 8/3 8/6 8/12 8/21 8/24 8/27 9/2 9/8 9/11 9/17 9/20 12/7 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-26

MING1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/14 2/1 2/13 3/3 4/26 5/14 5/17 5/20 6/13 6/16 6/25 7/19 8/15 9/20 9/23 10/5 10/8 10/17 10/29 11/4 12/19 12/22 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-27

MING1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

-50

0

50

100

150

200

250

300

350

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/20 3/18 4/5 6/7 7/4 7/7 7/10 7/13 7/16 7/25 8/3 8/6 8/9 8/27 8/30 9/2 9/8 9/17 9/29 10/23 11/28 12/7 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-28

OKEF1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/11 1/14 1/20 2/7 2/28 3/3 4/14 6/19 6/22 6/25 6/28 7/10 8/27 8/30 9/14 9/23 10/2 10/11 12/1 12/10 12/13 12/22 12/25 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-29

OKEF1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

350

400

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/17 1/23 2/13 2/25 3/30 4/5 5/2 5/8 6/4 7/7 7/16 7/19 8/6 8/24 9/11 9/17 9/20 10/8 10/23 11/4 12/4 12/7 12/16 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-30

ROMA1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/14 1/23 2/7 2/10 3/3 3/6 3/9 4/2 4/14 4/17 5/5 6/10 6/19 6/22 6/25 7/10 8/15 8/30 9/2 9/5 9/20 9/23 9/26 10/11 12/19 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-31

ROMA1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/17 1/29 2/13 2/16 2/22 2/25 4/20 5/2 6/4 6/7 7/1 7/4 7/7 7/16 7/19 7/25 7/31 8/24 9/11 9/14 9/17 10/20 10/23 10/26 12/7 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-32

SAMA1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/11 1/14 1/20 2/1 2/7 3/9 3/21 6/7 6/10 6/22 6/25 6/28 7/13 7/25 7/28 8/6 8/12 8/27 9/14 9/23 10/29 12/10 12/22 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-33

SAMA1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

2/4 2/13 2/16 2/25 3/30 4/5 4/8 4/17 4/26 5/2 5/5 5/8 5/11 6/4 7/4 7/7 7/16 7/19 9/17 10/17 10/20 10/23 12/7 12/19 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-34

SHEN1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

5

10

15

20

25

30

35

40

45

50

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/5 1/14 1/23 1/26 2/7 2/19 3/3 3/9 3/18 6/7 7/25 8/9 9/2 9/26 10/11 11/16 12/1 12/4 12/7 12/10 12/13 12/22 12/25 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-35

SHEN1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

350

400

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

2/28 5/26 5/29 6/4 6/10 6/13 6/19 6/25 7/1 7/4 7/16 7/19 7/22 7/31 8/3 8/12 8/21 8/24 8/27 9/11 9/14 9/17 9/29 10/2 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-36

SHRO1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

5

10

15

20

25

30

35

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/5 1/8 1/11 1/26 2/7 2/19 3/9 3/12 3/27 3/30 4/14 9/14 9/26 10/26 10/29 11/4 11/16 11/22 12/7 12/10 12/13 12/19 12/22 12/25 12/28 12/31 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-37

SHRO1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

100

200

300

400

500

600

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

5/8 5/17 6/1 6/4 6/10 6/13 6/19 7/1 7/4 7/7 7/10 7/16 7/22 7/25 7/31 8/3 8/6 8/9 8/12 8/21 9/5 9/8 9/11 9/17 9/23 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-38

SIPS1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

10

20

30

40

50

60

70

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/11 1/14 1/26 2/1 2/28 3/18 3/30 4/23 4/26 6/16 6/25 6/28 7/31 8/18 9/14 10/29 11/4 12/1 12/13 12/22 12/25 12/28 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-39

SIPS1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

350

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

3/21 5/2 5/11 5/23 6/1 6/4 6/10 7/4 7/7 7/10 8/3 8/6 8/9 8/12 9/8 9/11 9/17 9/20 10/11 10/23 11/28 12/4 12/7 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-40

SWAN1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

5

10

15

20

25

30

35

40

45

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/14 1/26 2/1 3/3 3/9 4/14 5/5 6/22 6/25 7/13 8/9 8/15 8/30 9/8 9/20 9/26 10/11 10/17 11/10 11/16 11/28 12/1 12/10 12/19 12/25 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-41

SWAN1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/5 2/22 2/25 4/20 4/29 5/2 5/8 5/26 6/1 7/4 7/7 7/16 7/19 7/28 7/31 8/21 8/24 9/11 9/17 10/5 10/20 11/22 11/25 12/7 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-42

UPBU1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Best Days (2002)

0

5

10

15

20

25

30

35

40

45

50

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

1/14 1/26 2/16 3/9 3/30 4/8 4/26 4/29 6/13 6/16 6/25 8/15 9/23 10/5 10/8 10/14 10/17 10/29 11/7 11/19 12/1 12/19 12/31 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt
B-43

UPBU1

Old and New IMPROVE Algorithm (oia/nia) Extinction by Species

20% Worst Days (2002)

0

50

100

150

200

250

300

350

niaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoianiaoia

5/8 5/23 6/7 6/19 6/22 6/28 7/1 7/10 7/16 7/22 7/25 8/3 8/6 8/9 8/12 8/27 8/30 9/5 9/8 9/11 9/14 9/26 10/23 11/16 11/28 Avg.

Extinction (Mm-1)

Rayleigh Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt