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TOP > CSR > Environment > Production > Reducing Substances of Enviromental Concern
Reducing Substances of Enviromental Concern (PRTR and VOC substances)
We are further accelerating activities for reducing and minimizing the use of substances of environmental concern.
Recently, AISIN has achieved a reduction in PRTR substances and VOC substances by improving coating efficiency for automobile body parts as well as switching from toluene and xylene to alternatives for use as solvents on electronic components.
We will expand our targets to other similar processes to further reduce the use of such substances.
*1 PRTR: Pollutant Release and Transfer Register A system for reporting the discharge and flow volume of chemical substances legally recognized as having an environmental impact.
*2 VOC : Volatile Organic Compounds VOC chiefly refers to manmade synthetic substances that can easily be released into the atmosphere at room temperature and under normal pressure. Toluene and xylene are representative VOC substances, although there are over 100 other substances within this category.
Improving Coating Efficiency
We minimized the dispersion and emission of VOC substances by employing spin coating in the air spoiler coating process and optimizing the angle of the spray gun.
Shifting to Water-based Plastics
We reduced the use of VOC substances by 95% by shifting to low-VOC phenolic plastics and eliminating toluene through a change in procedures in the dry clutch disc facing coating process.
PCB*1 Treatment Completed on December 1, 2006
Following resumption of PCB waste treatment operations curtailed as a result of JESCO's*2 accidental leakage in November 2005, the treatment of the remaining 45 units of condensers containing PCBs at AISIN's Nishio, Anjo and Shinkawa plants was fully completed as of December 1, 2006.
1* PCB: polychlorinated biphenyl
2* JESCO: Japan Environmental Safety Corporation, a company engaged in PCB waste treatment
