The purpose of this study was to apply CUSUM control chart as a simple
instrument for monitoring the shift of municipal solid waste amount in
Bangkok by tuning CUSUM parameters. The study results indicated the onesided
upper CUSUM significantly showed a tendency of increasing municipal
solid waste amount since 2000 to 2004. Then, it was sharply decreasing in
2005 and converging to the average of municipal solid waste amount in the
succeeding year.