Comparative study on sources and assessment methods of heavy metal pollution in soil
Heavy metals enter the soil through many channels and pollute the soil environment to different degrees.By deeply understanding the pollution sources of heavy metals in the soil,we can take better targeted control measures.The problem of soil heavy metal pollution is becoming more and more serious,so it is urgent to study the treatment of soil heavy metal pollution.At present,there are many researches on the evaluation methods of soil heavy metal pollution at home and abroad.According to different investigation objects and research purposes,the suitable evaluation methods are selected to accurately evaluate the risk degree of soil heavy metal content,it can guide land use planning scientifically and provide reference for land risk management and restoration.
Soilheavy metal pollutionsource of heavy metalsevaluation method