Progress of Soil Heavy Metal Pollution Evaluation Methods and Source Apportionment Techniques
The evaluation methods and source apportionment techniques commonly used in soil heavy metal pollution research are briefly introduced,including single factor index,Nemerow index,potential ecological risk index,geo-accumulation index,pollution load index and source apportionment techniques such as principal component analysis,APCS-MLR model and PMF model.The evaluation methods of soil heavy metal pollution and the application cases of source apportionment technology and the latest scientific research progress were reviewed in detail.The improvement and modification of the evaluation methods were summarized,and the combined application of source apportionment method and model was described.Finally,the future development trend of soil heavy metal pollution assessment methods and source apportionment technology was prospected,in order to provide references for soil heavy metal pollution risk assessment,source apportionment and remediation.
soilheavy metal pollutionrisk assessmentevaluation methodsource apportionment