Question

Collect data of major river system in India on the basis of their pollution level. Represent the data by using different statistical tools.

Answer 1

Her is the data of major river system in India on the basis of their pollution level:
Sabarmati : 
                  Around 4 mg/L
On the basis of the statistics taken in 2010 are:

Markanda: 590 mg Oxygen /liter
Amlakhadi: 353 mg Oxygen /liter

Kali:  364 mg Oxygen /liter

Yamuna canal:  247 mg Oxygen /liter

The Yamuna  near Delhi:  70 mg Oxygen /liter

Betwa:   58 mg Oxygen /liter


The levels of 8 mg/L  or less is acceptable and below 2 mg/L is also considered as a 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:
       In certain areas: 2 mg/L .   
       In cities and towns: 13 mg/L

Narmada:
               Less than 2.5 mg/L

Mahanadi: 
                Less than  1 mg Oxygen / Litre to 4 mg Oxygen / Litre  in cities or                        Chattisgarh
Krishna:   
             1 mg Oxygen / Litre to 3 mg Oxygen / Litre             10 mg Oxygen / Litre in certain cities/towns.    
Pune:
         Around 28 mg/L

Cauvery :
             From 1 mg/L  to  3 mg/L
Ganga : 
            From 4 mg/l to 8  mg/l
Godavari : 
                Around 5 mg/l

Vitharini (Bitarni) : 
                             Around 2 mg/l

Narmada :
                 Around 2 mg/l
Mahi :
         Around 2.5 mg//l