Physico-chemical analysis of drinking water in different districts of southern West-Bengal, India

Ujjal Das, Arnab Basu and Sheela Roy

Fishery and Aquaculture unit, Department of Zoology (P.G. Section),
Vidyasagar College, Block CL, Sector II, Salt Lake City, Kolkata-700 091
roysheela77@yahoo.co.in

Article Info		Abstract
Received: 17-08-2016 Revised: 28-09-2016 Accepted: 30-09-2016		The drinking water samples from taps (supplied by the Municipalities) and tube wells, collected from 19 sites of 8 districts of southern part of West Bengal, India were examined to determine the physical (odour, colour) and chemical parameters (pH, chloride, arsenic, iron, alkalinity, hardness etc). Dissolved oxygen (4.25 – 9.93 ppm), conductivity (0.25 – 3.24ms/cm), TDS (129.2 – 167.1 ppm), pH (6.62 – 7.7), Total alkalinity (110.0 – 460.0 ppm), calcium (6.41 – 133 ppm) and magnesium (0.97 – 86.74 ppm) were recorded from all sites. The data revealed that collected water samples of all sites were within the safe tolerance limit. Only chloride (42.6 – 986.5 ppm) and hardness (32.0 – 688.0 ppm) showed a wide variation at different locations. Arsenic (< 0.01 ppm) had a safe level in all the water samples. In three sites iron content recorded (0.29 - 1.71ppm) were beyond the maximum tolerance limit. Microbiological tests were also done to detect the presence of microbial load. Only one sites indicated the presence of faecal contamination.
Keywords: ground water, microbial load, tap water, water analyses, west Bengal

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Ujjal Das, Arnab Basu and Sheela Roy, 2016. Physico-chemical analysis of drinking water in different districts of southern West-Bengal, India. Science Research Reporter, 6(2):119-125.

Editor: Dr. Umesh P. Mogle, Printed, Published and Owned by Dr. Umesh P. Mogle, Published from ‘Kaushalyaaie’, P. No. 43, Priyanka Residancy, Mantha Chaufulli Jalna 431203 (M.S.) India.