Seasonal variation of uranium and physico-chemical parameters in spring water sources of Pithoragarh city, Uttarakhand, India

The paper deals with the seasonal variation of physico-chemical parameters in natural spring water sources collected from Pithoragarh city, Uttarakhand, India. A total of sixteen parameters were investigated for pre-monsoon and post-monsoon seasons during the study. Total dissolved solids have been found to range from 315 to 729 mg/L during pre-monsoon and 245 to 704 mg/L during post-monsoon. Total hardness and total alkalinity were observed to be high for two samples. Water quality index was evaluated to determine whether the use of water samples for drinking purpose is safe or not and its values range between 35.71 and 74.39 during pre-monsoon and 31.66 and 72.60 during post-monsoon. (author)