Abstract
This study focused on the potential for waste reduction and recycling by 3R promotion measures such as raising information awareness, raising pro-environmental attitudes, upgrading collection service, and strengthening external pressure for citizens. The authors implemented a questionnaire survey in Okayama city, and surveyed the status of citizens' behavior, attitudes, and information awareness relevant to 3R of municipal solid waste (MSW). The authors found that 4 major factors, "Information awareness," "Pro-environmental attitude," "Recognition of Burden," and "External Pressure," were predictors on 3R behavior, and sensitivity analyses of the models were carried out to estimate the increase in citizen participation rate achievable through the implementation of various political measures. The authors also conducted a monitor survey for households in Okayama city on waste generation amount, and calculated the unit waste generation amount per person by detail waste/recyclable categories. By the integration of results on the increase in citizen participation rate by 3R promotion measures and the unit waste generation amount by detail waste/recyclable categories, the authors estimated the expected increase in recycled amount and the expected waste reduction amounts by each promotion measure.
