However, the quality of the environment is a matter of growing concern. The Bangkok Metropolitan Administration (BMA), which is responsible for the city management of Bangkok and for the well-being of its res- idents, is aware that waste increase is causing big problems. Like other municipalities, the BMA seeks to avoid environmental pollution by encompassing various strate- gies, such as 3 Rs, efficient waste collection and disposal system campaigns, and effective participation in the gov- ernment, public, and private sectors. Since 2004, commu- nity based solid waste management (CBM) has been applied to reduce waste generation at the source and to create mutual benefit between local communities and the BMA