Pollution Prevention

Chemical Management

NGK abides by laws, guidelines, and other rules on chemical substances by maintaining a proper level of management for chemicals, and constantly striving to improve this level. Before new chemicals are used by each department, the Chemical Substances Safety Committee determines the pros and cons of using these chemicals and provides confirmation and guidance concerning what precautions must be taken for their usage and disposal. For chemicals that have already been used in the department, the site’s chemical substances committee and chemical substances patrol team determine and confirm the state of chemical management and provide necessary guidance. We also follow information regarding changes in chemical substance-related regulations and share this within the group to ensure proper chemical substance management policies are implemented.
Group companies inside and outside Japan survey and understand regional rules and regulations so that chemical substances can be properly managed.

Chemical Management Flowchart

This is a chart showing the chemical management process flow. The process flow is as follows. After the department using the chemicals submits an application, the division checking conducts a review and provides guidance. If the application is approved, the Purchasing Department registers purchasing information, and the department using the chemicals uses the chemicals while implementing appropriate control.

Commitment Concerning Hazardous Substances

The NGK Group aims to reduce the amount of hazardous substances used, in accordance with our Guidelines for Environmental Action. Regarding raw materials, we present our suppliers with a hazardous materials list, and require that they comply with the hazardous substances management stipulated by the NGK Group’s Supply-Chain CSR Guideline and NGK Group's Green Procurement Standard.

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Atmospheric Emissions Control

We comply with legal limits on soot emissions from facilities through periodic measurement in accordance with laws and regulations, and constant monitoring of critical items. Moreover, when elevated photochemical oxidant levels cause photochemical smoke warnings to be issued, we register with Aichi Prefecture as a cooperative factory and conduct measures to reduce emissions.

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Wastewater Management

We have set our own internal standards with respect to wastewater which trigger alarms or shutoff at or below levels required by wastewater standards. Moreover, we perform management beforehand to ensure that even in cases of emergency, levels do not surpass regulatory standards.

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