• Yogesh Chandra Gupta
• Ashok Kumar Jha

Koshi river of Khagaria district flowing along the villages e.g. Baltara, Kumhraili and Sonbarsa bring devastating flood which causes abrupt change in ground water quality. Analytical tests of ground water samples for PH, conductivity, Cr, Mn and Zn have been done with a view to know heavy metal contamination and alkalinity of soil too. Heavy metals especially hexavalent chromium posses carcinogenic characteristics when taken more than permissible limit of total chromium as 0.05 mg/ L. PH more than permissible limit shows the alkalinity which adversely affects the growth of crops in the area. One of the reasons for accumulation of Cr(VI) and other pollutants may be due to flood and its channelization with flood water.

Carcinogenic, Cr(VI), conductivity, Alkalinity.

"Physicochemical studies of Ground water and Koshi river of Baltara, Kumhraili and Sonbarsa in Khagaria District. ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.6, Issue 6, page no.601-608, June-2019, Available :http://www.jetir.org/papers/JETIR1906F93.pdf

"Physicochemical studies of Ground water and Koshi river of Baltara, Kumhraili and Sonbarsa in Khagaria District. ", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.6, Issue 6, page no. pp601-608, June-2019, Available at : http://www.jetir.org/papers/JETIR1906F93.pdf