ABSTRACT
In the Waste Disposal and Public Cleaning Law of Japan, enacted in 1970, wastes are classified as shown in Fig. 1. (Radioactive wastes are handled separately.) According to this law, wastes are classified into general wastes from living activities and wastes from business activities. In addition, many terms such as hazardous (industrial) waste, medical waste, etc. are used. It should be remembered that the definition of these terms is quite different in different countries and in Japan there is often a gap between a legal term and the commonly-used term.
