Domestic water system of Thai Nguyen city originates from Nui Coc lake which has an area of 25km2 . In fact, due to these original areas that have many metal mines, such as tin, lead, zinc, vonfram, ., the content of heavy metal in the water resource raises need for concern. Therefore, we evaluated the content of some elements: Cr, Mn, Cu, Cd, Pb, Hg in the water resource of Nui Coc lake, Tich Luong lake and the domestic water system of Thai Nguyen city to compare with the Vietnamese standard of maximum acceptable heavy metal content in drinking water. It shows that the content of Cr, Mn, Cu, Hg and Cd is less than the acceptable standard and the content of Pb is higher than the acceptable standards. |
