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Management and Reduction of Chemical Substances

Management and Reduction of Chemical Substances during Production

Management and Reduction of Chemical Substances


Management of Chemical Substances

Daikin bases around the world take voluntary action to reduce the amounts of various chemical substances, such as PRTR substances and VOCs. From fiscal 2016, we are working toward a target of reducing emissions per unit of production (total of PRTR substances and VOCs) in fiscal 2020 by 5% against the standard value (average for fiscal 2013-2015).

In fiscal 2017, our Chemicals Division strove to reduce emissions of the raw material methylene chloride and our Air Conditioning Manufacturing Division strove to reduce emissions of volatile processing oil, resulting in a 5% reduction against the standard value.

Chemical Emissions / per Unit of Production (total of PRTR substances and VOCs)

Chemical Emissions / per Unit of Production (total of PRTR substances and VOCs)
Note:
Because the scope of calculations and the calculation method were revised in formulating the Environmental Action Plan 2020, the past fiscal year values were retroactively corrected.

The results for the past five years of the old scope of calculations and the calculation method are here.

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 FY2017 (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 57.35 0.00 0.00 0.00 0.00
Dichloromethane; methylene dichloride 19.61 0.00 0.00 2.90 0.00
1-chloro-1,1-difluoroethane; HCFC-142b 11.00 0.00 0.00 0.00 0.00
Toluene 3.12 0.06 0.00 0.48 0.00
2-chloro-1,1,1,2-tetrafluoroethane; HCFC-124 1.60 0.00 0.00 0.00 0.00
Phenol 0.73 0.00 0.00 0.75 0.00
Chloroform 0.62 0.00 0.00 5.90 0.00
Xylene 0.61 0.00 0.00 0.04 0.00
Formaldehyde 0.38 0.62 0.00 0.27 0.00
Ethylbenzene 0.33 0.00 0.00 0.00 0.00
N-hexane 0.25 0.00 0.00 0.73 0.00
Hydrogen fluoride and its water-soluble salts 0.24 0.00 0.00 41.01 0.00
Poly(oxyethylene)alkyl ether(alkyl C=12-15) 0.04 0.01 0.00 49.00 0.63
1,3,5-trimethylbenzene 0.03 0.00 0.00 0.00 0.00
N,N-dimethylformamide 0.03 0.00 0.00 0.01 0.00
Poly (oxyethylene) = octylphenyl ether 0.02 0.01 0.00 0.00 0.00
1,2,4-trimethylbenzene 0.02 0.00 0.00 0.00 0.00
N,N-dimethylformamide 0.01 0.00 0.00 7.30 0.00
Dichloropentafluoropropane; HCFC-225 0.01 0.00 0.00 0.00 0.00
Methylnaphthalene 0.01 0.00 0.00 0.00 0.00
Poly (oxyethylene) = nonylphenyl ether 0.00 0.00 0.00 0.00 0.00
Acetonitrile 0.00 0.00 0.00 2.80 0.04
Nickel 0.00 0.00 0.00 0.00 0.00
Boron compounds 0.00 0.44 0.00 0.58 0.00
Ethylene glycol monoethyl ether 0.00 0.00 0.00 0.00 0.00
Ferric chloride 0.00 0.00 0.00 10.33 0.00
Antimony and its compounds 0.00 0.00 0.00 0.85 0.00
Methylenebis(4,1-phenylene)diisocyanate 0.00 0.00 0.00 0.08 0.00
Tritolyl phosphate 0.00 0.00 0.00 0.04 0.00
Molybdenum and its compounds 0.00 0.00 0.00 0.03 0.00
Nickel compound 0.00 0.00 0.00 0.02 0.00
chromium and chromium(III) compounds 0.00 0.00 0.00 0.01 0.00
Allyl alcohol 0.00 0.00 0.00 0.00 0.00
Manganese and manganese compounds 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
2-aminoethanol 0.00 0.00 0.00 0.00 0.01
Tetrachloromethane 0.00 0.00 0.00 0.00 0.00
Styrene 0.00 0.00 0.00 0.00 0.00

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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