MONITORING THE SUBSTANTIAL METAL ANALYSIS AND HMPI IN GROUNDWATER FROM VILLAGE AND NEARBY DEVELOPED AREAS OF KANNUR REGION: A GIS STUDYTHANGAVELU A., MANOJ K., SAPNA K. AND NAJLA P.
The present study was conducted on heavy metal pollution of groundwater in Kannur district. Totally 25 groundwater samples were collected from different village and nearby developed areas in 2019. The spatial variation of heavy metals were analyzed for Fe> Pb>Mn>Zn in AAS. The heavy metal analysis results were compared with the BIS and the APHA standards for drinking and public health. The spatial interpolation techniques such as inverse distance method were used to prepare heavy metal distribution map with the help of ArcGIS10.3. The mean heavy metal pollution index (HMPI) for each sampling site reflected highest pollution in Iron. The present study reveals that most of the sampling sites were obtained below the critical pollution index limit. The high values of HMPI were found in Mattanur and Alakkode. However, iron concentration exceeding the desirable limit in many areas without affecting the pollution. The low concentration of other metals zinc, manganese and lead found in few areas were highly polluted nearby industrial operations and representing human-induced pollution. Overall conclusions of the study should be taken seriously by the concerned water resource management authorities in order to control the metal pollution in the groundwater.