|   | 
        Experimental    Sites | 
       
      
        | Variable | 
        Bolson | 
        La    Teja | 
        Palomas | 
        Anthony | 
        Columbus | 
        Deming | 
        Leyendecker | 
       
      
        | PM    (mg m-3) | 
        0.877cz | 
        0.529c | 
        1.008c | 
        3.054a | 
        2.752ab | 
        2.381b | 
        1.124c | 
       
      
        | Sand+Silt    (%) | 
        96.4 | 
        50.1 | 
        76.1 | 
        98.8 | 
        82.8 | 
        85.9 | 
        83.0 | 
       
     
      zMeans with the same letter are not significantly different at 0.05 level of
    significance. LSD mean test |