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Zion National Park

 

Table 1. ZION1 ammonium sulfate trajectory regression attribution assessment using a zero intercept.

Source Regions Contributions (ug/m3) Uncertainty (ug/m3) Fraction (%) Uncertainty (%) Cumulative (%) Significance (p value)
Intercept            
Pacific Coast 0.1910 0.0263 21.2 2.9 21.2 0.0000
Pacific Ocean 0.1174 0.0200 13.0 2.2 34.2 0.0000
Arizona 0.1077 0.0245 12.0 2.7 46.2 0.0000
SWUS 0.0936 0.0233 10.4 2.6 56.6 0.0001
Mexico 0.0780 0.0159 8.7 1.8 65.2 0.0000
SwUtah 0.0514 0.0238 5.7 2.6 70.9 0.0318
NWUS 0.0445 0.0199 4.9 2.2 75.9 0.0257
Nevada 0.0366 0.0230 4.1 2.6 79.9 0.1126
SEUS 0.0329 0.0084 3.7 0.9 83.6 0.0001
Idaho 0.0305 0.0158 3.4 1.8 87.0 0.0547
NwUtah 0.0258 0.0214 2.9 2.4 89.8 0.2278
Wyoming 0.0151 0.0074 1.7 0.8 91.5 0.0422
NeUtah 0.0125 0.0168 1.4 1.9 92.9 0.4599
Canada 0.0117 0.0123 1.3 1.4 94.2 0.3419
New Mexico 0.0086 0.0081 1.0 0.9 95.2 0.2942
Colorado 0.0056 0.0043 0.6 0.5 95.8 0.1915
SeUtah 0.0035 0.0112 0.4 1.2 96.2 0.7567
NEUS 0.0029 0.0050 0.3 0.6 96.5 0.5661
Gulf 0.0014 0.0044 0.2 0.5 96.6 0.7506
Atlantic 0.0012 0.0020 0.1 0.2 96.8 0.5410

Table 2. ZION1 ammonium sulfate trajectory regression attribution assessment including an intercept.
Source Regions Contributions (ug/m3) Uncertainty (ug/m3) Fraction (%) Uncertainty (%) Cumulative (%) Significance (p value)

Intercept 0.3754 0.0814 41.7 9.0 41.7 0.0000
Pacific Coast 0.1425 0.0275 15.8 3.1 57.5 0.0000
Pacific Ocean 0.0734 0.0215 8.2 2.4 65.7 0.0007
Arizona 0.0557 0.0262 6.2 2.9 71.8 0.0343
SWUS 0.0570 0.0238 6.3 2.6 78.2 0.0175
Mexico 0.0696 0.0155 7.7 1.7 85.9 0.0000
SwUtah 0.0311 0.0234 3.4 2.6 89.3 0.1858
NWUS 0.0224 0.0198 2.5 2.2 91.8 0.2596
Nevada 0.0015 0.0235 0.2 2.6 92.0 0.9495
SEUS 0.0292 0.0082 3.2 0.9 95.2 0.0004
Idaho 0.0175 0.0155 1.9 1.7 97.2 0.2614
NwUtah 0.0009 0.0214 0.1 2.4 97.3 0.9680
Wyoming 0.0137 0.0072 1.5 0.8 98.8 0.0576
NeUtah -0.0042 0.0167 -0.5 1.8 98.3 0.8030
Canada -0.0027 0.0123 -0.3 1.4 98.0 0.8276
New Mexico 0.0055 0.0079 0.6 0.9 98.6 0.4902
Colorado 0.0045 0.0042 0.5 0.5 99.1 0.2787
SeUtah 0.0024 0.0108 0.3 1.2 99.4 0.8222
NEUS 0.0042 0.0048 0.5 0.5 99.9 0.3899
Gulf 0.0002 0.0043 0.0 0.5 99.9 0.9700
Atlantic 0.0011 0.0019 0.1 0.2 100.0 0.5787 


    
Table 3. ZION1 aerosol extinction trajectory regression attribution 
    assessment using a zero intercept.

  

  

    
  

  

    

      
        
        
        
        
        
        
      
      

        Source Regions
        Contributions (1/Mm)
        Uncertainty (1/Mm)
        Fraction (%)
        Uncertainty (%)
        Cumulative (%)
        Significance (p value)
      

      

      
        
        
        
        
        
        
      
      

        Intercept
         
         
         
         
         
         
      

      

        Pacific Coast
        2.5777
        0.5684
        15.5
        3.4
        15.5
        0.0000
      

      

        Nevada
        2.1821
        0.4964
        13.1
        3.0
        28.5
        0.0000
      

      

        Pacific Ocean
        2.1143
        0.4312
        12.7
        2.6
        41.2
        0.0000
      

      

        SWUS
        1.8587
        0.5020
        11.1
        3.0
        52.3
        0.0003
      

      

        Arizona
        1.4063
        0.5279
        8.4
        3.2
        60.8
        0.0082
      

      

        NeUtah
        1.0975
        0.3633
        6.6
        2.2
        67.4
        0.0027
      

      

        NwUtah
        1.0761
        0.4612
        6.5
        2.8
        73.8
        0.0203
      

      

        Canada
        0.8715
        0.2653
        5.2
        1.6
        79.0
        0.0011
      

      

        Mexico
        0.7574
        0.3428
        4.5
        2.1
        83.6
        0.0279
      

      

        Idaho
        0.4892
        0.3414
        2.9
        2.0
        86.5
        0.1530
      

      

        SEUS
        0.4230
        0.1815
        2.5
        1.1
        89.0
        0.0205
      

      

        SwUtah
        0.4220
        0.5138
        2.5
        3.1
        91.6
        0.4121
      

      

        Wyoming
        0.2621
        0.1599
        1.6
        1.0
        93.1
        0.1022
      

      

        NWUS
        0.1678
        0.4286
        1.0
        2.6
        94.1
        0.6957
      

      

        Colorado
        0.1530
        0.0930
        0.9
        0.6
        95.1
        0.1010
      

      

        New Mexico
        0.0775
        0.1758
        0.5
        1.1
        95.5
        0.6596
      

      

        Gulf
        0.0451
        0.0955
        0.3
        0.6
        95.8
        0.6368
      

      

        Atlantic
        0.0052
        0.0424
        0.0
        0.3
        95.8
        0.9023
      

      

        SeUtah
        -0.0221
        0.2421
        -0.1
        1.5
        95.7
        0.9274
      

      

        NEUS
        -0.1117
        0.1079
        -0.7
        0.6
        95.0
        0.3014
      

    

    

  

  

    
    
Table 4. ZION1 aerosol extinction trajectory regression attribution 
    assessment including an intercept.

  

  

    
  

  

    

      
        
        
        
        
        
        
      
      

        Source Regions
        Contributions (1/Mm)
        Uncertainty (1/Mm)
        Fraction (%)
        Uncertainty (%)
        Cumulative (%)
        Significance (p value)
      

      

  

  

  
    
    
    
    
  
  

    Intercept
    10.7237
    1.7069
    64.3
    10.2
    64.3
    0.0000
  

  

    Pacific Coast
    1.1936
    0.5775
    7.2
    3.5
    71.4
    0.0396
  

  

    Nevada
    1.1792
    0.4927
    7.1
    3.0
    78.5
    0.0173
  

  

    Pacific Ocean
    0.8590
    0.4515
    5.1
    2.7
    83.7
    0.0581
  

  

    SWUS
    0.8122
    0.5000
    4.9
    3.0
    88.5
    0.1054
  

  

    Arizona
    -0.0778
    0.5491
    -0.5
    3.3
    88.1
    0.8874
  

  

    NeUtah
    0.6228
    0.3494
    3.7
    2.1
    91.8
    0.0757
  

  

    NwUtah
    0.3630
    0.4477
    2.2
    2.7
    94.0
    0.4182
  

  

    Canada
    0.4607
    0.2576
    2.8
    1.5
    96.7
    0.0747
  

  

    Mexico
    0.5196
    0.3241
    3.1
    1.9
    99.8
    0.1100
  

  

    Idaho
    0.1173
    0.3260
    0.7
    2.0
    100.5
    0.7192
  

  

    SEUS
    0.3174
    0.1713
    1.9
    1.0
    102.4
    0.0648
  

  

    SwUtah
    -0.1574
    0.4912
    -0.9
    2.9
    101.5
    0.7489
  

  

    Wyoming
    0.2206
    0.1503
    1.3
    0.9
    102.8
    0.1431
  

  

    NWUS
    -0.4659
    0.4149
    -2.8
    2.5
    100.0
    0.2624
  

  

    Colorado
    0.1211
    0.0874
    0.7
    0.5
    100.8
    0.1670
  

  

    New Mexico
    -0.0111
    0.1657
    -0.1
    1.0
    100.7
    0.9467
  

  

    Gulf
    0.0095
    0.0898
    0.1
    0.5
    100.8
    0.9155
  

  

    Atlantic
    0.0010
    0.0398
    0.0
    0.2
    100.8
    0.9796
  

  

    SeUtah
    -0.0518
    0.2274
    -0.3
    1.4
    100.4
    0.8200
  

  

    NEUS
    -0.0747
    0.1015
    -0.4
    0.6
    100.0
    0.4624