| Correlation value (r-value) | 
        Environment Factor | 
       
      
        | BOD | 
        pH | 
        Temperature of water | 
        Rainfall | 
       
      
        | 0.526* | 
        -0.076 | 
        -0.446 | 
        0.143 | 
       
      
        | 1 | 
        0.62 | 
        0.315 | 
        -0.608 | 
       
      
        | 0.602 | 
        1 | 
        0.524 | 
        -0.52 | 
       
      
        | 0.312 | 
        0.524 | 
        1 | 
        -0.573 | 
       
      
        | -0.608 | 
        -0.52 | 
        -0.573 | 
        1 | 
       
     
    *Correlation is significant at the 0.01 levels (2-tailed)/moderate correlation. |