Data underlying the publication: Human health risk assessment framework for new water resource recovery-based bio-composite materials.

A new type of bio-composite material is being produced from water-recovered resources such as cellulose fibres from wastewater, calcite from the drinking water softening process, and grass and reed from waterboard sites. These raw materials may be contaminated with pathogens and chemicals such as Escherichia coli, heavy metals, and resin compounds. A novel risk assessment framework was developed, addressing human health risks during the production of new bio-composite materials. The developed framework consists of a combination of existing risk assessment methods and is based on three main steps: hazard identification, qualitative risk mapping, and quantitative risk assessment. The Hazard & Operability (HAZOP) and Event Tree Analysis (ETA) methodologies were used for hazard identification and risk mapping stages. Then, human health risks were quantitatively assessed using quantitative chemical risk assessment (QCRA), evaluating cancer and non-cancer risk, and quantitative microbial risk assessment (QMRA). The deterministic and the stochastic approaches were performed for this purpose.

本研究以水回收资源为原料制备新型生物复合材料，所用原料包括废水中提取的纤维素纤维、饮用水软化工艺产生的方解石，以及取自水务作业场地的草本与芦苇。此类原料可能被病原体及各类化学物质污染，例如大肠杆菌（Escherichia coli）、重金属与树脂类化合物。针对新型生物复合材料生产过程中的人体健康风险，本研究开发了一套全新的风险评估框架。该框架整合现有风险评估方法，主要包含三大核心步骤：危害辨识、定性风险图谱绘制与定量风险评估。在危害辨识与风险图谱绘制阶段，研究采用了危险与可操作性分析（Hazard & Operability，HAZOP）与事件树分析（Event Tree Analysis，ETA）两种方法。随后通过定量化学风险评估（QCRA）与定量微生物风险评估（QMRA）完成人体健康风险的定量评估，其中定量化学风险评估用于评估致癌与非致癌风险，本次评估同时采用了确定性分析与随机性分析两种技术路径。