Calculate 6 internationally recognized pollution indices: Contamination Factor (CF), Pollution Load Index (PLI), Geo-accumulation Index (Igeo), Enrichment Factor (EF), Ecological Risk Index (RI), and Nemerow Index.
Enter values in mg/kg (ppm)
Typical soil Fe: 10,000 - 50,000 mg/kg
Enter metal concentrations and click Calculate
Results will appear here
These indices provide a comprehensive assessment of soil pollution by comparing measured metal concentrations to background reference values. Different indices emphasize different aspects: CF shows individual contamination, PLI gives overall site quality, Igeo accounts for natural variation, EF identifies anthropogenic sources, RI assesses ecological toxicity, and Nemerow highlights the worst-case metal.