Table 6. Inventory data of cellulose-based single-use masks at pre-manufacturing stage (Based on 1 ton)

Category		Material	Amount	Unit
Silviculture	Input	Forested area	0.002	ha
		Electricity	0.1	kWh
		Diesel	3	kg
	Output	CO2, SO2, NOX etc.	10.6	kg
		Roundwood	12.1	m3
Sawmill operation	Input	Roundwood	12.1	m3
		Electricity	39	MJ
		Steam(Heat pump)	82	MJ
	Output	CO2, SO2, NOX etc.	371	g
		Sawdust	5.4	m3
Wood chip production	Input	Sawdust	5.4	m3
		Electricity	137	MJ
		Diesel	0.042	kg
	Output	CO2, SO2, NOX etc.	482	g
		Wood chip	822.7	kg
Cellulose extraction	Input	Wood chip	822.7	kg
		Water for processing	40,370	kg
		Electricity	265.6	kWh
	Output	Cellulose fiber	575.9	kg