Amit Kumar Solankia* & Braj Bhusan Prasad Singhb
aUniversity Department of Zoology, J. P. University, Chapra, Bihar, India
bDepartment of Zoology, P. R. College, Sonpur, Saran, Bihar, India
Received : 27th May, 2021 ; Revised : 28th June, 2021
Abstract– The quality of water depends upon Physico-chemical and Hydro-biological characteristics, reflecting the biotic status of the ecosystem. Physico-chemical factors of Gandak River at Konhara Ghat, Hajipur, Vaishali (Bihar), India, was studied for a period of 18 months from October, 2019 to May, 2021. Monthly water samples were collected to analyse different physical and chemical parameters and results obtained were compared with standard values. The selected Physico-chemical factors analysed during investigation were Temperature, Turbidity, pH, Total Hardness, Total Dissolved Solids (TDS), Dissolved Oxygen (DO), Electric Conductivity (EC), Phosphate, Chloride. These properties were analysed and compared with standard values recommended by Bureau of Indian standards and World Health Organization (WHO). In the present investigations maximum values of different parameters were recorded as maximum temperature was 32.6oC in July, 2020, the maximum Turbidity was 28.3 NTU in September, 2020, maximum Electrical conductivity was 185μS/cm in December, 2019, the maximum pH value of water was 7 during several months, the maximum Total Hardness of water was 225mg/l in October, 2020 June, 2020 and November, 2019 while the maximum TDS was 88 mg/l in December, 2020 and DO was highest i.e. 9 mg/l in April 2020-2021. The Ammonia concentration was highest 0.5 mg/l during few months and that of chloride was maximum 1.2 mg/l in September, 2020. The Phosphate concentration was not found in Gandak River.
Key words: Organization, Chemical, Temperature, Standard.