Table 1. Data source and acquisition related to single-use face masks life cycle in this study

Life cycle	Contents	References
Production and consumption	Monthly single-use face masks production	• Ministry of Food and Drug Safety, 2018, 2022 [12]• Korea Biomedicine Industry Association, 2018 [13]
	Process of single-use face masks textile	Turkmen, 2021 [5]
Disposal	Estimated single-use face masks discarded by country	Benson et al., 2021 [3]
	Incineration of polypropylene	Korea Environmental Industry and Technology Institute: Environmental report label, 2019 [6]
	Status of waste single-use masks in COVID-19	Lee et al., 2020 [4]
	Status of waste generation and disposal	• Korea Ministry of Environment: Status of waste generation and disposal, 2018, 2020, 2022 [14]• Ministry of Economy and Finance: Waste Resources Management and Utilization Policies of Korea, 2016 [15]