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Sustainability > Environment > Management and Reduction of Chemical Substances > Management and Reduction of Chemical Substances During Production

Management and Reduction of Chemical Substances

Management and Reduction of
Chemical Substances During Production

Management of Chemical Substances

Daikin Group bases around the world take voluntary action to reduce the amounts of various chemical substances, such as PRTR substances and VOCs.

Emissions of PRTR Substance Down by 23% Against Fiscal 2010

The Daikin Group in Japan worked toward a target of reducing emissions of PRTR (Pollutant Release and Transfer Register) substances in fiscal 2015 by 15% compared to fiscal 2010.

In fiscal 2015, we were thorough in our efforts to reduce PRTR emissions; for example, subsidiary Nippon Muki Co., Ltd. incorporated adhesive substitutes and strove to improve production yields, and the Air Conditioning Manufacturing Division strove to prevent the vaporization of paint. As a result, emissions were reduced to 101 tons at the Daikin Group in Japan, a 23% reduction against fiscal 2010.

Release of Substances Designated by the Pollutant Release and Transfer Register Law (Japan)

Release of Substances Designated by the Pollutant Release and Transfer Register Law (Japan)

Terminology

PRTR Law (Pollutant Release and Transfer Register (PRTR) Law)

Enacted in Japan in 1999, the PRTR Law is a legal framework in Japan for the calculation and publicizing of the amounts of certain hazardous chemical substances that are emitted or transferred as waste into the environment (air, water, and soil) or into public sewage systems. Other countries have similar regulations. The PRTR Law was revised in 2009.

Compilation of PRTR Substances in FY2015 (PRTR substances of which at least 1 ton was handled)

Substance name Amount emitted(tons) Amount transported (tons)
Air Public
waterways
Soil Waste Sewage
Chlorodifluoromethane; HCFC-22 53.02 0.00 0.00 0.37 0.00
Dichloromethane; methylene dichloride 31.61 0.00 0.00 3.10 0.00
1-chloro-1,1-difluoroethane; HCFC-142b 9.90 0.00 0.00 0.00 0.00
Toluene 3.35 0.00 0.00 0.59 0.00
2-chloro-1,1,1,2-tetrafluoroethane; HCFC-124 1.40 0.00 0.00 0.00 0.00
N-hexane 1.15 0.00 0.00 1.00 0.00
Chloroform 0.84 0.00 0.00 4.10 0.00
Phenol 0.76 0.00 0.00 0.77 0.00
Xylene 0.71 0.00 0.00 0.00 0.00
Formaldehyde 0.42 0.68 0.00 0.30 0.00
1,2,4-trimethylbenzene 0.30 0.00 0.00 0.00 0.00
Hydrogen fluoride and its water-soluble salts 0.24 0.00 0.00 75.00 0.00
Ethylbenzene 0.20 0.00 0.00 0.00 0.00
Poly(oxyethylene)alkyl ether(alkyl C=12-15) 0.02 0.00 0.00 44.00 0.25
N,N-dimethylacetamide 0.01 0.00 0.00 0.00 0.00
Methylnaphthalene 0.01 0.00 0.00 0.00 0.00
N,N-dimethylformamide 0.01 0.00 0.00 5.10 0.00
Acetonitrile 0.00 0.00 0.00 3.10 0.04
Boron compounds 0.00 0.43 0.00 0.58 0.01
Ferric chloride 0.00 0.00 0.00 8.74 0.00
Antimony and its compounds 0.00 0.00 0.00 1.20 0.00
Methylenebis(4,1-phenylene)diisocyanate 0.00 0.00 0.00 1.03 0.00
Zinc compounds(water-soluble) 0.00 0.00 0.00 0.55 0.14
Tritolyl phosphate 0.00 0.00 0.00 0.05 0.00
Molybdenum and its compounds 0.00 0.00 0.00 0.03 0.00
Copper salts (water-soluble, except complex salts) 0.00 0.00 0.00 0.00 0.00
Allyl alcohol 0.00 0.00 0.00 0.00 0.00
Tetrachloromethane 0.00 0.00 0.00 0.00 0.00
Water-soluble salts of peroxodisulfuric acid 0.00 0.00 0.00 0.00 0.00

Against Fiscal 2010, Total VOC Emissions in Japan Down by 19% and VOC Emissions Per Unit of Production Overseas Down by 19%

The Daikin Group worked toward its target of reducing total VOC emissions in Japan by 20% in fiscal 2015 against fiscal 2010, and reducing VOC emissions per unit of production overseas in the same period by 10%.

In fiscal 2015, as a result of recovering and recycling VOCs, and replacing them with less harmful substances, we achieved a 19% reduction in total emissions over fiscal 2010 in Japan and a per-unit-of-production reduction of 19% overseas.

Total VOC Emissions, and VOC Emissions Per Unit of Production (Daikin Group in Japan)

Total VOC Emissions, and VOC Emissions Per Unit of Production (Daikin Group in Japan)

Total VOC Emissions, and VOC Emissions Per Unit of Production (Daikin Group Overseas)

Total VOC Emissions, and VOC Emissions Per Unit of Production (Daikin Group Overseas)

Elimination of PFOA Emissions

Total Elimination of the Manufacture and Use of PFOA by Developing Substitutes

Perfluorooctanoic Acid (PFOA) is a man-made chemical substance that has been conventionally used as a polymerization aid for fluororesins. It does not readily degrade in nature and is thus a substance of concern for the environment and human safety.

At the end of 2015, as part of its efforts toward sustainable management of chemical substances, Daikin Industries, Ltd. ceased manufacturing and using PFOA and similar compounds, as well as products made from these.

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