The contaminated site poisoning incidents of volatile organic compounds(VOCs)occurred frequently.Many numerical simulation models have been established to calculate the risk of underground pollutants.Johnson & Ettinger model(J&E model)is the most widely used tool for evaluating vapor intrusion potential because of its simplicity and convenience.In this paper,a scale model was developed to simulate the process of 1,1,1-trichloroethane vapor intrusion,discuss the factors of vapor intrusion and validate the ac...