Chemical Substance Reduction

The Yokogawa Group is thorough in managing chemicals that are harmful to humans and the global environment. Also, Yokogawa is developing and introducing alternative processes in an effort to reduce chemical use and waste. Furthermore, to comply with RoHS directives restricting the use of certain chemicals in electrical and electronic equipment in Europe, as well as with the REACH Regulation (Registration, Evaluation, Authorization and restriction of CHemical substances), we are implementing efforts for the reduction and management of such chemical substances.

PRTR Substances

The amount of substances reported under PRTR* requirements (1,000 kg/year or more handled) is shown in the table.

*PRTR System:
The PRTR, or Pollutant Release and Transfer Register, was established to enable society as a whole to manage chemical substances through the disclosure of toxic chemical emissions data and other information.

PRTR Data (FY17)

Factory Factory
Amount used
Amount emitted
Amount transferred
Air Public
Soil Landfill Sewage
Yokogawa Manufacturing Komagane Factory Hydrogen fluoride and its water-soluble salt 1,267 0 84 0 0 0 1,183
Ferric chloride 1,048 0 0 0 0 0 0
Yokogawa Manufacturing Kofu Factory Ferric chloride 5,084 0 0 0 0 0 0