Figure 2From: Occurrence, risk assessment, and source apportionment of heavy metals in surface sediments from Khanpur Lake, PakistanDescription of the different parameters. Description of (a) enrichment factor (EF), (b) geoaccumulation index (Igeo) and (c) potential ecological risk factor (E i ) of heavy metals in acid extract of sediments during summer (S) and winter (W).Back to article page