Dr. Chhatra Sharma at the Dept. of Environmental Science and Engineering with his colleagues from the Chinese Academy of Sciences and Lappeenranta University of Technology, Finland published a research article on Bulletin of Environmental Contamination and Toxicology. The publication is "Preliminary health risk assessment of potentially toxic metals in surface water of the Himalayan rivers, Nepal". 

It can be assessed from the link: http://link.springer.com/article/10.1007/s00128-016-1945-x