Tetsuo Iwai* and Kengo Ando*

* Toyota Motor Corporation, Plant Engineering Div.
(1 Toyota-cho, Toyota, Aichi 471-71 Japan)

Abstract

Environmental issues involving a great diversity of chemicals have been discussed both domestically and internationally in recent years, and internal management and voluntary reduction of the release and transference of potential hazardous chemicals, even though they are not regulated, in the environment have been required. This paper states the internal management system of hazardous chemicals at Toyota Motor Corporation. The internal management system of hazardous chemicals should be considered at consumption and discharge phases. The main structures of the consumption phases are (1)The Toyota Hazardous Chemical List (2,232 chemicals and compounds) which were developed by a survey of domestic and overseas environmental laws and regulations and (2)the collection system of chemical content data from the suppliers of raw material. The main structures of the discharge phase are (1)Data base of environmental potential impact chemicals and compounds, (2)Information system of raw materials consumption at each department, (3)Data base of transition factors between and in the manufacturing process, and (4)Data base of meteorology for dispersion model.

Key words: unregulated hazardous chemicals, internal management system of hazardous chemicals, prior environmental inspection system, reduction of environmental load