A Method of Human Health Risk Assessment for Reclaimed Water

Guozhong Huang, Siheng Sun, Qi Bi, Teng Cao, Ping Li

Abstract


In order to reveal the influence of harmful substances in reclaimed water quality on human health, this paper carries out the research from the perspective of risk assessment. Firstly, according to reclaimed water reuse applications and water quality requirements, the characteristics of its safety evaluation were analyzed and summarized. Then the event tree analysis (ETA) method was introduced to determine the risk transfer path of reclaimed water reuse, and the framework of water safety evaluation index system was put forward based on the result. Finally, by combining the traditional risk assessment theory and the USEPA’s four-step method with the characteristics of human health risk for reclaimed water, the procedure and model of human health risk assessment for reclaimed water were established.


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