The role of incineration in Msw disposal In the past, the incineration of refuse was quit common in North American and western europe before 1940 However, many incinerators were eliminated due to the fact it may cause potential air pollution and health risks Today, about 15%of Msw in the United States is incinerated Canada incinerates about 8%; while Japan and Switzerland incinerate about 60% of their Msw◆ The role of incineration in MSW disposal In the past, the incineration of refuse was quit common in North American and western Europe before 1940. Today, about 15% of MSW in the United States is incinerated; Canada incinerates about 8%; while Japan and Switzerland incinerate about 60% of their MSW. However, many incinerators were eliminated due to the fact it may cause potential air pollution and health risks