Boric chloride biphenyl (PCB): A chemical with nonflammable and insulating properties that was widely used in transformers and pressure-sensitive copying paper.

Boric chloride biphenyl (PCB): A chemical with nonflammable and insulating properties that was widely used in transformers and pressure-sensitive copying paper.
Kanemi Oil Incident: A 1968 cooking oil poisoning incident in which the toxicity of PCBs was confirmed.
Insulating oil: Oil used as an insulator inside electrical equipment, which may contain PCBs.
Pressure-sensitive copying paper: Paper that can be copied under pressure and may contain PCBs.
Administrative guidance: Guidance or recommendation given by a government agency to a company or other entity, including a ban on the use of PCBs.
Dilution: To dilute a concentrated liquid; PCBs were usually used by diluting the original solution.
Waste Disposal and Public Cleansing Law: A Japanese law concerning waste disposal and cleanup, which has been revised in relation to PCB disposal.
Supercritical water oxidation reaction: A technique for decomposing hazardous substances using water and oxidants under high temperature and pressure.
Dechlorination decomposition method: a method to decompose toxic substances containing chlorine, also used to treat PCBs.
Photolysis: A technology that uses light to decompose hazardous substances, and is one of the methods used to treat PCBs.
Intermediate treatment method: A method of treatment of waste prior to final disposal, also specified for the treatment of PCBs.
Separation equipment: Equipment used to separate materials for PCB removal.
Ministry of Education: Japanese government agency responsible for education, culture, etc. Also involved in PCB issues.
High-voltage transformer: A device that converts voltage, sometimes using PCBs as insulating oil.
Capacitor: A device used to store electricity, sometimes containing PCBs.
Liberal Democratic Party: One of the major political parties in Japan that has proposed the Law on Special Measures against PCBs.
Special Measures Law: A temporary law enacted to address a specific issue, including legislation on PCB disposal.
Subsidies: Funds provided by the government to support specific activities; subsidies for PCB treatment are also being considered.
Diet Member Legislation: Legislation proposed by Diet members, including the Act on Special Measures against PCBs.
Ministry of the Environment: Japanese government agency responsible for environmental protection and involved in the PCB issue.