APPENDIX L 

International Attribution Plots

L-1
BRET1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

1012141618

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-2
BRET1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

101520253035

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 10/1

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-3
BRIG1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

1012141618

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-4
BRIG1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

0

20406080

100120

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-5
CACR1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

1012

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-6
CACR1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

1015202530354045

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

3/21 5/8 5/23 6/4 6/19 6/22 7/7 7/10 7/19 7/22 8/3 8/6 8/9 8/27 8/30 9/5 9/8 9/11 9/14 9/17 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-7
CADI1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

10121416

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

1/8 1/14 2/1 2/4 2/13 2/28 3/3 3/9 5/14 5/17 6/16 6/28 7/19 8/15 9/23 10/5 10/14 11/4 11/10 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-8
CADI1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

101520253035404550

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

3/18 6/4 6/7 6/19 6/22 7/4 7/7 7/10 7/16 7/25 8/3 8/6 8/9 8/12 8/27 8/30 9/2 9/8 9/11 9/17 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-9
CHAS1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

101214161820

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-10
CHAS1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

1015202530

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 8/24 9/17 10/5 10/8 10/17 10/23 11/25 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-11
COHU1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

1012141618

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

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 1

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-12
COHU1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

0

102030405060

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-13
DOSO1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

012345678

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-14
DOSO1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

10152025303540

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-15
EVER1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

1012

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-16
EVER1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

101520253035404550

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

1/5 2/4 2/13 2/25 3/3 3/15 4/5 4/8 4/23 5/5 5/8 6/1 6/7 8/6 8/24 9/14 10/8 10/17 11/1 11/7 11/2

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-17
GRSM1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

1012

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-18
GRSM1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

101520253035

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-19
HEGL1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

101214

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-20
HEGL1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

10152025303540

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 10/2

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-21
JARI1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

1012

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-22
JARI1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

101520253035404550

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-23
LIGO1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

0123456789

10

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-24
LIGO1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

101520253035

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-25
MACA1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

101214

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-26
MACA1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

10152025303540

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

3/27 5/29 6/1 6/4 6/19 6/22 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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-27
MING1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

05

10152025

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-28
MING1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

1015202530354045

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-29
OKEF1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

10121416

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

1/11 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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-30
OKEF1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

101520253035404550

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-31
ROMA1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

05

10152025303540

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

1/14 1/23 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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt Amm NO3 POM LAC Soil CM Sea Salt

L-32
ROMA1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

10152025303540

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

1/17 1/29 2/13 2/16 2/22 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 10/2

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-33
SAMA1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

10121416

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 9/23 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-34
SAMA1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

101520253035

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-35
SHEN1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

012345678

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-36
SHEN1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

101520253035404550

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-37
SHRO1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

0123456789

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 12/1

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-38
SHRO1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

1015202530354045

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-39
SIPS1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

10121416

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

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 12/13 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-40
SIPS1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

10152025303540

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-41
SWAN1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

101214

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

1/14 1/26 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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-42
SWAN1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

05

101520253035

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-43
UPBU1

Domestic and International Aerosol Mass by Species

20% Best Days (2002)

02468

101214161820

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-44
UPBU1

Domestic and International Aerosol Mass by Species

20% Worst Days (2002)

0

102030405060

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

Domestic

International

5/8 5/23 6/7 6/19 6/22 6/28 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 

Mass (μg/m

3

)

Amm SO4 Amm NO3 POM LAC Soil CM Sea Salt

L-45