• Dr. Swapan S. Bacher

A Mulchera lake is situated in Mulchera tehsil of Gadchiroli district of Maharashtra state has been selected for the study of seasonal variations in physic-chemical parameters of water. The period of the study is from December 2019 to November 2020. During study period following parameters were analysed i.e. Temperature, pH, transparency, conductivity, D.O., free CO2, BOD, COD, total hardness, chlorides, phosphate, sulphate and nitrates, etc. The present study showed that the atmospheric temperature is higher than that of water temperature. It is maximum during summer season while the minimum in the winter season. Conductivity, pH and BOD are also observed maximum in summer while minimum in winter. DO as well as transparency is found maximum in the winter and minimum in monsoon. Free CO2, BOD, COD, hardness, chlorides, phosphates, sulphates and nitrates are maximum in summer and minimum in winter. Alkalinity is more in monsoon season and minimum were found in winter. Comparatively higher values of conductivity, total alkalinity, chlorides, phosphates and nitrates in Mulchera lake indicate of its contaminated and polluted status.

Mulchera lake, Water pollution, physico-chemical parameters, Chamorshi, etc.

"Seasonal Variations of Mulchera Lake with respect to Physico-chemical parameter in Mulchera Tehasil, District Gadchiroli, (M.S.)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 12, page no.114-120, December-2020, Available :http://www.jetir.org/papers/JETIR2012420.pdf

"Seasonal Variations of Mulchera Lake with respect to Physico-chemical parameter in Mulchera Tehasil, District Gadchiroli, (M.S.)", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 12, page no. pp114-120, December-2020, Available at : http://www.jetir.org/papers/JETIR2012420.pdf