Selection of incinerators
Selection of the MSW incinerators in our study was based upon the emission levels of MSW incinerators surveyed by the Ministry of Health and Welfare of Japan. The survey report published in April 1997 included only one measurement per MSW incinerator and no repetitive measurements from which we can estimate the average and the variability of emission levels for each incinerator. However, by considering that the operation condition of incinerators is usually controlled within a pre-defined constant range and day-to-day variation of emission levels seems to be not so large, and that the Ministry of Health and Welfare of Japan has urged an urgent countermeasure against dioxin emissions for the MSW incinerators based upon these measurements,we decided to use this report to select MSW incinerators.