Abstract
The purpose of this analysis is to show the relation between household characteristics and the amount of domestic refuse generated, using data collected from questionnaires and waste generation surveys from households in the Tokyo wards over a 3 year period.
First, we analyzed what factors relating to household characteristics (i. e. occupation, number of occupants, type of residence) affect the waste amount by employing quantification theory type-1 and found that there was a close relationship between the number of occupants and their waste amount. Secondly, we classified the data into five groups according to the number of occupants, and carried out a statistical test to find their waste amount per capita. For single occupancy households, a strong correlation was found between the awareness of waste reduction and waste amount.
Also, focusing on single occupancy households, we conducted a comparative analysis between a group of single occupancy households generating much waste and a group of single occupancy households generating less waste and it was revealed that the daytime lifestyle (absent or at home) is a major factor affecting the amount of domestic refuse.
