Question

list of level of pollution in different rivers.

Answer 1

Sabarmati :  4 mg/L  or BOD
BOD :Biochemical Oxygen Demand.
In 2010 the statistics are:
Markanda:   590 mg Oxygen /liter    BOD
Amlakhadi :  353 
Kali:  364
Yamuna canal:  247  BOD 
Yamuna  near Delhi:  70
Betwa:   58
The above are the worst affected.  Near cities and major towns the rivers are badly affected.  In rural areas they are better.
BOD levels of 8 mg/L  or less is acceptable... below 2 mg/L is good water.          
Ganga :   
at Rishikesh 1.5  mg  Oxygen/L.                   
at  kanpur : 5 mg/L
Brahmaputra:    
At gauhati  - very high.      
at other locations  : 2 mg /L  or less
Tapi :  
2 mg/L  in some areas.    
in cities and towns,  about 13 mg/L   BOD
Narmada  : less than 2.5 mg/L  BOD
Mahanadi  :   less than  1 mg O / Litre   to   4  in cities or chattisgarh
Krishna:   
1 to 3   in many areas...    
10 in many cities/towns....     
Around Pune 28 mg/L
Cauvery : generally from 1 mg/L  to  3 mg/L
Ganga :  4 - 8  mg / liter  BOD
Godavari :  5 BOD
Vitharini (Bitarni) :  2 mg/l
Narmada : 2 mg/L
Mahi : 2.5 mg/L