Spatial Variability of Groundwater Depth and Quality Parameters in the National Capital Territory of Delhi

摘要: The groundwater quantity and quality scenario is of much concern in the National Capital Territory Delhi, India, which necessitates an investigation to envisage extent spatial variability depth pollutant concentration levels this region. Therefore, study, effort was made generate map parameters (viz. chloride, electrical conductivity, fluoride, magnesium, nitrate). Ordinary kriging used analyze parameters, whereas indicator equal or greater than pollution threshold values. It observed that semivariogram fitted well exponential model for water spherical parameters. generated maps indicated 43% study area, within 20 m. salinity level higher 2.5 dS m−1 69% area nitrate exceeded 45 mg l−1 36% area. probability showed about 24% had highest (0.8–1.0) exceedence conductivity value 2% exhibited groundwater. will assist resource managers policymakers development guidelines judicious management resources agricultural drinking purposes