Ⅰ. Introduction
o Background and purpose of the study
-In assessing society's pressure on the environment, it is necessary to intervene not only on the production side, but also on the consumption side; however, there is to this point no research technique with which to evaluate the impact of consumption.
-In particular, waste generation is closely related to consumption patterns, but there is no evaluation technique that can identify which types of waste are generated and treated as a result of certain consumption behaviors and product consumption.
-Citizens tend to focus on visible household (living) waste, and it is necessary to provide citizens with information that allows them to link their consumption with the associated invisible industrial waste, as well as efforts to reduce that waste.
-Therefore, the purpose of this study is to develop a technique for evaluating the waste footprint of household consumption expenditure (i.e., the total amount of business waste before consumption and household (living) waste after consumption) on a trial basis.

o Content of the study
-This paper examined policy trends in sustainable consumption and examples of consumption-based environmental impact assessment in this area by considering domestic and international policy as well as research trends. The particular focus is on examining the case of waste footprint assessment and the establishment of waste input and output tables.
-For domestic household consumption pattern, we examined household consumption patterns in 2019 and analyzed changes in household consumption expenditure