Fig. 4: Environmental viability of corn-based filters.
From: Sustainable biomass-based filter for high-efficiency PM0.3 filtration
a System boundary of life cycle assessment. b Environmental impacts of corn-based filters in contrast to the polyester fabric, polypropylene fabric, and glass fiber fabric, respectively. Digital photographs of corn-based filters with a size of 15.5 cm × 7.5 cm degraded in different environments, with (c) showing soil and (d) showing PBS.
