Community perceptions and behaviors in the management of mask waste in Denpasar City during the Covid-19 period.

WHO has declared COVID-19 as a global pandemic, through Pergub Bali No. 10 of 2021 concerning the application of discipline and law enforcement Prokes makes the demand for PPE increase. Denpasar City has the highest population density in Bali Province, so it has the greatest opportunity as the largest production of mask waste that can harm the environment. This study aims to estimate the generation of mask waste, find out the negative impact caused by the mask waste on the environment, determine public perceptions and behavior towards the management of the use of masks and the management of mask waste and model scenarios using dynamic systems. This study uses a mix method analysis method with a combination of sequential exploration (qualitative and quantitative), and perform modeling analysis using Powersim Studio 8 software. The results of the study estimate that in Denpasar City as many as 515,114 masks are used every day, through the mask life cycle assessment approach, the resulting Greenhouse Gas emissions are 10,418,226 kg CO2 Eq per year. The perception and behavior of the community towards the management of masks, the community has a fairly good attitude to use, good knowledge, and bad processing actions towards the processing of masks. Through the recommendation of community participation modeling in traditional scenarios, estimating the reduction of mask waste generation and emissions over the next 6 years by 1%