<p>Water samples of Karra river from Hetauda industrial area were collected during pre monsoon (May 2012) to assess water chemistry (Ca²⁺, Na⁺, K⁺, HCO₃^-, NO₃^-, SO₄^2-, Cl^-, F^- and H₄SiO₄) and evaluate influence of natural processes and anthropogenic activities viz. industrial and agricultural inputs. The pollution was more severe near the industrial

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... ches due to direct discharge of the treated and untreated effluents from industries. Carbonate contribution was noted ~36.2 % from carbonate weathering and ~ 63.8 % from silicate weathering.</p><p>Journal of Institute of Science and Technology, 2015, <strong>20(2): </strong>31-36</p>