Modeling Analysis of Heavy Metal Evaluation in Complex Geological Soil Based on Nemerow Index Method

To accurately understand soil environmental quality and improve the problem of traditional method, which is that it has a single evaluation factor cannot reflect overall condition soil, complex geological heavy metal modeling method based on Nemerow index proposed. Index methods, ArcGIS technology, human health risk assessment were carried out to obtain spatial distribution metals in current status pollution accumulation. The comprehensive (CPI) geo-accumulation (GAI) potential ecological hazard (PEH) adopted analyze degree metals. On this basis, was used establish model, standard calculated complete soils. research results showed could make factors reasonable scores more results.