The main emphasis of this study was to assess the status of drinking water quality from four different water sources available in and around an institutional campus of Lumami, Nagaland University, with special reference to the detection of trace heavy metal elements. The results of the physico-chemical parameters of the water show that values of DO, BOD₅ and free CO₂ at S3 are beyond the permissible limit set by WHO and BIS. The values of DO in all the three stations (S1, S2 and S4) are near the maximum permissible limit of drinking water, indicating the deterioration of water quality, whereas the rests of the parameters are below the permissible limit of WHO and BIS. The detection of Hg in all stations along with alarmingly high concentrations of Fe and others such as Cu, Zn, Mn and Se is perceived as a matter of concern. On the other hand, As and Pb were not detected in any station. The detection of Hg and Fe in all the four types of water sources is an indication of contaminant hazards and needs drinking water treatment practices in these areas which in turn have implications on human health.

这项研究的主要重点是评估那加兰德大学Lumami校园内及其周围四种可用水源的饮用水水质状况，并特别着重于痕量重金属元素的检测。水的理化参数结果表明，DO，BOD ₅和游离CO _2的值S3的值超出了WHO和BIS设定的允许限制。三个站（S1，S2和S4）中的DO值均接近饮用水的最大允许极限，表明水质恶化，而其余参数均低于WHO和BIS的允许极限。在所有站点中检测到的Hg以及令人震惊的高浓度Fe和其他杂质（例如Cu，Zn，Mn和Se）被认为是一个令人关注的问题。另一方面，在任何站点都未检测到As和Pb。在所有四种类型的水源中检测到的Hg和Fe均表明存在污染物危害，并且需要在这些地区进行饮用水处理，从而对人类健康产生影响。