Vol. 5 No. 2 (2021)
Articles

Monitoring the Water Quality of the Daha River of Bihar, India by Physicochemical Approach and Benthonic Macro-Invertebrates Population

Published 2021-07-31

Abstract

The use of inorganic pesticides, insecticides in agriculture is pivotal to obtain a superior yield, even though these agents are toxic and degrade the water quality. Municipal disposal and industrial effluents also affect the water quality as well as the life of aquatic flora and fauna. In this study, we have collected the water from three places of Daha river situated in the Sasamusa, Gopalganj District of Bihar, India. Here we have measured different physicochemical parameters like dissolved oxygen (DO), Chemical Oxygen demand (COD), Biochemical oxygen demand (BOD), pH, alkalinity, hardness, the concentration of salts like chloride, sulphate, nitrate, fluoride, electrical conductivity(EC) and total suspended solids (TSS). We have also conducted metal analysis like iron, copper & lead test. Further, we have also analyzed the prominent benthic macro-invertebrates population present in the water sample. Our result indicated that the water of the Daha River is highly polluted and it is not recommended to be fit for the drinking purpose of domestic animals, though it may be used in irrigation and aquaculture.