Assessment of temporal variation in water quality of some important rivers in middle Gangetic plains, India

  • Rani N
  • Sinha R
  • Prasad K
 et al. 
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The study explains water quality of three important tributaries of the Ganga River in the middle Gangetic plains in India. Seasonal changes in the water quality of the studied rivers: Gandak, Ghaghra, and Sone were observed. During monsoon, several water quality parame-ters show considerable changes due to increased runoff from the catchments and other seasonal factors. Multivariate discriminant analysis delin-eated a few parameters responsible for temporal variation in water quality. Seasonal variation in water quality of the Gandak River was rendered by seven parameters—turbidity, sulfate, pH, phos-phate, water temperature, total alkalinity, and sodium, while total alkalinity and water tempera-ture were responsible for seasonal discrimination in water quality of Ghaghra River. Water temper-ature, turbidity, total dissolved solids, total sus- pended solids, calcium, and phosphate were im-portant for seasonal discrimination in water qual-ity of Sone River. The seasonal changes in water quality of the rivers were due to seasonal effects and catchment characteristics. The discriminant functions classified most of the cases correctly.

Author-supplied keywords

  • Discriminant analysis
  • Gandak River
  • Ghaghra River
  • River water quality
  • Seasonal variation
  • Sone River

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