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Life cycle assessment of single-use surgical and embedded filtration layer (EFL) reusable face mask
Resources, Conservation and Recycling ( IF 13.2 ) Pub Date : 2021-03-31 , DOI: 10.1016/j.resconrec.2021.105580
Amos Wei Lun Lee 1 , Edward Ren Kai Neo 1 , Zi-Yu Khoo 1 , Zhiquan Yeo 1 , Yee Shee Tan 1 , Shuyun Chng 1 , Wenjin Yan 1 , Boon Keng Lok 1 , Jonathan Sze Choong Low 1
Affiliation  

Background

The outbreak of the COVID-19 pandemic has led to an unprecedented amount of face mask consumption around the world. The increase in face mask consumption has brought focus to their environmental impact. To keep up with the increased demand for face masks, different variations of reusable face masks such as the embedded filtration layer (EFL) reusable face mask have emerged in the market. This study quantifies the environmental impact of the EFL reusable face mask and the single-use surgical face mask.

Methods

The life cycle assessment (LCA) study of the entire value chain from cradle-to-grave is applied to each face mask. Both face masks are evaluated over 1 functional unit (FU) of 31 12-h days for a single person. The ReCiPe method with the Hierachist perspective was applied. A total of nine impact categories as well as the generated waste of each face mask are evaluated.

Results

The results show that for 1 functional unit, the use of single-use surgical face mask and EFL reusable face mask will contribute 0.580 kg CO2-eq and 0.338 kg CO2-eq to climate change and generate 0.004 kg and 0.0004 kg of waste respectively.

Conclusion

Comparing both face masks, the EFL reusable face mask will have a lower emission of at least 30% in terms of the generated waste and the impact categories considered, except for water depletion, freshwater eutrophication, marine eutrophication, and human toxicity.



中文翻译:

一次性手术和嵌入式过滤层 (EFL) 可重复使用面罩的生命周期评估

背景

COVID-19 大流行的爆发导致全世界的口罩消费量达到前所未有的水平。口罩消费量的增加引起了人们对其环境影响的关注。为了跟上对面罩日益增长的需求,市场上出现了各种不同的可重复使用面罩,例如嵌入式过滤层 (EFL) 可重复使用面罩。本研究量化了 EFL 可重复使用口罩和一次性手术口罩对环境的影响。

方法

从摇篮到坟墓的整个价值链的生命周期评估 (LCA) 研究应用于每个口罩。两个面罩都在 1 个功能单元 (FU) 上对一个人进行了 31 个 12 小时天的评估。应用了具有 Hierachist 视角的 ReCiPe 方法。评估了总共九个影响类别以及每个口罩产生的废物。

结果

结果表明,对于1个功能单元,使用一次性外科口罩和EFL可重复使用口罩将对气候变化贡献0.580 kg CO 2 -eq和0.338 kg CO 2 -eq,并产生0.004 kg和0.0004 kg废物分别。

结论

比较这两种面罩,EFL 可重复使用面罩在产生的废物和考虑的影响类别方面至少减少 30%,但水资源枯竭、淡水富营养化、海洋富营养化和人体毒性除外。

更新日期:2021-03-31
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