Impact of Waste Water on River Kathajodi for the Year 2009-10

Abstract

A study  was  carried out  to  evaluate the impact  of domestic  waste generated  from  Cuttack city  on river  Kathajodi. Grab samples  were collected  in three  seasons  for  two  consecutive  years both  at upstream and  at downstream.  The  results obtained   in different  seasons  has been  compared graphically. From analysis  it  was  observed  that  almost all  parameters  are in increasing  trend ( except DO) towards D/S. The  stations located  upstream of  the river  was found  to be less  polluted  but  the contamination  of the river  starts  from downstream near Govt press due to dumping of waste and waste water. The water of the river assumed a dark hue due to discharge of raw domestic sewage.  The pollution load decreases towards the last patch of the river within the study area as a result of dilution.  Quality  rating  for different parameters  has been  calculated. From that  water quality  index was found out and compared. It  was concluded  that    due to  domestic  waste water  discharge  water quality  of river  Kathajodi  is deteriorating and the  results  are not  meeting the  prescribed  standard for drinking water under class-C.  .