T/LNSES 004-2022 Soil pollutant migration pathway and range evaluation technical guidelines

Scope

Main technical content: This guideline stipulates the principles, processes, methods, and technical requirements for assessing the migration path and scope of soil pollutants at a site. This guideline is applicable to work involving the analysis of pollutant migration pathways and the prediction of pollution scope in soil (including groundwater) caused by environmental pollution or ecological damage. The main technical content of this guideline includes: ① Applicable scope, ② Normative reference documents, ③ Terms and definitions, ④ Basic principles, ⑤ Work content and processes, including assessment preparation, conceptual model construction, assessment grading, pollutant migration prediction, and report preparation, ⑥ Preparation for assessing the migration of soil pollutants at a site, understanding the site overview and site pollution profile, ⑦ Conceptual model construction at the site, ⑧ Assessment grading, dividing the prediction work into three levels based on the project category of the assessment area, the degree of environmental sensitivity, and the level of site pollution, ⑨ Pollutant migration prediction, using corresponding models to predict the migration path and scope of pollutants based on the level of prediction work, ⑩ Report preparation

Development Information

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