课题组博士生曾令杰提出了一种兼顾污染物投放后室内浓度的实时变化及室内人员实时分布的人员建筑突发污染暴露风险评估模型。其中污染物实时浓度通过CFD计算得到，人员实时分布经由Pathfinder软件模拟。根据建筑突发污染应急处置时间序列，在案例分析中考虑了疏散人员行为，传感器响应时间及溯源时间对暴露风险的影响，提出了建筑突发空气污染中的溯源时间限值。

该成果近期被数学领域一区期刊Risk analysis杂志接受。

[1] Zeng Lingjie, Gao Jun, Wang Qiong, Chang Le. A risk assessment approach for evaluating the impact of toxic contaminant released indoor by considering various emergency ventilation and evacuation strategies. Risk Analysis. 2018; Accepted.

Fig. 1. Development process for typical emergency events

Fig. 5.Three-dimensional sketch map for the room space and its ventilation system.

Fig. 11.Exposure risk using four contaminant source locations under five emergency ventilation modes and two occupant evacuation models