Safety analysis of post-remediation contaminated site as green space
In order to ensure the safety of the post-remediation contaminated site as a green space,the reuse risk points under different restoration scenarios was studied.The results showed that:① The fluctuations in pollutant content caused by inade-quate management and objective conditions created uncertainty in the remediation effect;② There was mutual influence between the location,structure,stability,and other factors between physical remediation facilities and building structures;③ There were impacts of residual pollution and remediation agents on human health,environment,and buildings;④ The changes in soil environmental indicators after remediation lead to changes in plant growth environment and limited selection of plant species.The following safety utilization measures and saggestions were proposed based on the classification of risk points:① Collect post-remediation contaminated site information in advance,rationally arrange the key contents of the investi-gation,fully consider the preliminary investigation results and actual conditions,and ensure the safety of the engineering construction;② The planting soil in the postremediation contaminated site should meet the standard of green planting soil to ensure the health of the plant growth environment;③ Establish the postremediation contaminated site environmental supervi-sion mechanism according to local conditions to reduce the risk of pollution diffusion or rebound;④ Develop safety utilization standards for the post-remediation contaminated site as a green space,standardize the development of the industry,and ensure the safety of human body,environment and engineering in the whole process of green space construction.
万方数据
维普
