首页|Data-driven systematic analysis of waterborne viruses and health risks during the wastewater reclamation process

Data-driven systematic analysis of waterborne viruses and health risks during the wastewater reclamation process

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Waterborne viral epidemics are a major threat to public health.Increasing interest in wastewater reclamation highlights the importance of understanding the health risks associated with potential mi-crobial hazards,particularly for reused water in direct contact with humans.This study focused on identifying viral epidemic patterns in municipal wastewater reused for recreational applications based on long-term,spatially explicit global literature data during 2000-2021,and modelled human health risks from multiple exposure pathways using a well-established quantitative microbial risk assessment methodology.Global median viral loads in municipal wastewater ranged from 7.92 × 104 to 1.4 × 106 GC L-1 in the following ascending order:human adenovirus(HAdV),norovirus(NoV)GII,enterovirus(EV),NoV GI,rotavirus(RV),and severe acute respiratory syndrome coronavirus 2(SARS-CoV-2).Following secondary or tertiary wastewater treatment,NoV GI,NoV GII,EV,and RV showed a relatively higher and more stable log reduction value with medians all above 0.8(84％),whereas SARS-CoV-2 and HAdV showed a relatively lower reduction,with medians ranging from 0.33(53％)to 0.55(72％).A subsequent disinfection process effectively enhanced viral removal to over 0.89-log(87％).The predicted event probability of virus-related gastrointestinal illness and acute febrile respiratory illnesses in reclaimed recreational water exceeded the World Health Organization recommended recreational risk benchmark(5％and 1.9％,respectively).Overall,our results provided insights on health risks associated with reusing wastewater for recreational purposes and highlighted the need for establishing a regulatory framework ensuring the safety management of reclaimed waters.

Reclaimed waterWaterborne virusRecreationalHuman healthData-driven analysis

Jia-Xin Ma、Xu Wang、Yi-Rong Pan、Zhao-Yue Wang、Xuesong Guo、Junxin Liu、Nan-Qi Ren、David Butler

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Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,Beijing,100085,China

State Key Laboratory of Urban Water Resource and Environment,School of Civil and Environmental Engineering,Harbin Institute of Technology,Shenzhen,Shenzhen,518055,China

University of Chinese Academy of Sciences,Beijing,100049,China

Centre for Water Systems,College of Engineering,Mathematics and Physical Sciences,University of Exeter,Exeter,EX4 4QF,United Kingdom

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国家自然科学基金Shenzhen Science and Technology Innovation Commission,ChinaShenzhen Science and Technology Innovation Commission,ChinaShenzhen Science and Technology Innovation Commission,China

51922013KQTD201909209172630447GXWD20220818172959001KCXST20221021111404011

2024

10.1016/j.ese.2023.100328

环境科学与生态技术(英文)

环境科学与生态技术(英文)

ISSN：
年,卷(期)：2024.19(3)
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